Archives for 3-Phase Power
Arduino 3 Phase Inverter Circuit with Code
Arduino 3 Phase Inverter Circuit with Code
An Arduino three phase inverter is a circuit which produces a 3 phase AC output through a programmed Arduino based oscillator. In this post we learn how to make a [＃]
This yet another versatile 3-phase driver device in the form of IC L6235 
In this post we discuss the datasheet, and the pinout specification of the IC
The post explains a simple
In this post we discuss the making of a simple 3 phase induction motor speed controller circuit, which can be also applied for a single phase induction motor or literally [＃]
The post explains a very simple 3-phase sine wave generator circuit, using only three bipolar transistors and a few passive components for initiating the desired three phase output. How it [＃]
Archives for 3-Phase Power
3-Phase Motorcycle Voltage Regulator Circuits
3-Phase Motorcycle Voltage Regulator Circuits
The post discusses a list of PWM controlled simple 3 phase motorcycle voltage regulator circuit which may be used for controlling the battery charging voltage in most two wheeler. The [＃]
The presented 3 phase VFD circuit (designed by me) can be used for controlling the speed of any three phase brushed AC motor or even a brushless AC motor. The [＃]
In this post we learn how to make a simple 3 phase brushless DC motor driver circuit. The circuit employs the popular IRS2330 3-phase driver IC The presented idea looks [＃]
The post discusses how to convert 3 phase AC to single phase AC through a special bridge rectifier at any desired voltage. The idea was requested by Mr. Chaquito Technical [＃]
The post explains a simple relay changeover circuit for extracting single phase AC from a three phase AC source irrespective of the condition whether all the three phases are present [＃]
The post discuses the how to make a 3 phase inverter circuit which can be used in conjunction with any ordinary single phase square wave inverter circuit. The circuit was [＃]
Archives for 3-Phase Power
Driving 3-Phase Motor on Single Phase Supply
Driving 3-Phase Motor on Single Phase Supply
Driving a three phase motor on a single phase supply directly through ordinary methods can be difficult and dangerous. It requires accurately designed circuits for implementing the operations. Here I [＃]
Many a times we find it crucial and handy to possess a true three phase signal for evaluating many different electronic configurations such three phase inverters, three phase motors, converters [＃]
The post explains an interesting single phase AC to 3 phase AC circuit. The idea was requested by Mr. Sachin Sinalkar. Technical Specifications Hi dear sir, is there any way [＃]
Archives for 324 IC Circuits
Prevent Amplifier Fuse from Blowing During Power Switch ON
Prevent Amplifier Fuse from Blowing During Power Switch ON
Is your power amplifier fuse blowing during power switch ON? It could be happening due to the initial high current drawn by the loudspeakers, when power is switched ON. The [＃]
A anti-spy or bug detector circuit is a device that detects hidden wireless electronic devices such as wireless microphones, spy cameras, Wi-Fi devices, GPS trackers or any gadget that emits [＃]
A circuit which allows a connected motor to operate in clockwise and anticlockwise directions through alternate input triggers is called a bidirectional controller circuit. The first design below discusses a [＃]
Voltage stabilizer in the range of kVAs are powerful AC voltage stabilizer units specially designed for controlling and stabilizing high voltage fluctuations, for high power electrical equipment. In this article [＃]
In this post we are going to take a look at the popular LM 324 IC. We will be looking at the pin configuration, its important features and its technical [＃]
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was [＃]
Archives for 324 IC Circuits
RPM Controller Circuit for Diesel Generators
RPM Controller Circuit for Diesel Generators
The post discusses a diesel generator RPM controller circuit for boats using PWM technique and also using a simple triac shunt circuit. The idea was requested by Mr. Dave. Circuit [＃]
In this post we are going to learn how to interface a 4℅4 keypad with Arduino. We are going to see what is a keypad, how it is constructed and [＃]
In this post, we are going to construct a calculator using Arduino, which can perform far complex arithmetical calculation than an ordinary calculator. The motto of this post is not [＃]
In this article we are going to see how to build a microphone amplifier circuit with operational amplifier LM324. This circuit can be used as good pre-amplifier for audio projects. [＃]
The post explains a battery backup time indicator circuit for monitoring the battery power usage by the connected load and for estimating the approximate remaining backup time of the battery. [＃]
This first part of the proposed 4kva synchronized stackable inverter circuit discusses how to implement the crucial automatic synchronization across the 4 inverters with regards to frequency, phase and voltage [＃]
Archives for 324 IC Circuits
How Flex Resistors Work and how to Interface it with Arduino for Practical Implementation
How Flex Resistors Work and how to Interface it with Arduino for Practical Implementation
As electronics enthusiasts we may come across many kinds of resistors, from small fixed resistor to high current bulk rheostat. There are humongous classifications among resistors, but here we will [＃]
The presented universal power supply circuit can be used just for anything, you can use it as a solar battery charger, bench power supply, mains battery charger circuit, or for [＃]
The proposed sinewave inverter UPS circuit is built using PIC16F72 microcontroller, some passive electronic components and associated power devices. Data provided by: Mr. hisham bahaa-aldeen Main Features: The main technical [＃]
The post explains a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and [＃]
In this post we learn about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also [＃]
The following post explains a four simple yet a safe way of charging a Li-ion battery using ordinary ICs like LM317 and NE555 which can be easily constructed at home [＃]
Archives for 324 IC Circuits
3 Tested 220V High and Low Voltage Cut OFF Circuits Using IC LM324 and Transistors
3 Tested 220V High and Low Voltage Cut OFF Circuits Using IC LM324 and Transistors
An AC mains high/low cut-off device will cut off or disconnect the mains supply from home electrical whenever a high voltage or low voltage situation is detected. In this way [＃]
Archives for 4017 IC Circuits
LED Star Circuit
LED Star Circuit
This circuit can be used like a tree ornament, however the LED star circuit explained here has a variation; it＊s completely electronic and it provides the impression of an exploding [＃]
In this post we are going to construct an automatic school bell system using the IC 4017 which can be programmed to activate an AC bell in regular intervals (between [＃]
The IC 4017 is a versatile counter divider IC which can be applied for making many different interesting electronic circuits. In this post we will learn about a few useful [＃]
The post explains a simple method of converting a wasted spark type ignition system in an automobile, into an enhanced, sequential spark, 6 cylinder engine type ignition system. The idea [＃]
This LED light bar with dimmable feature will allow the user to adjust the brightness of the lamp in 4 steps, with100%, 50%, 10% and 0% illumination control at each [＃]
LED Chakra is an ornamental lighting system which depicts or imitates a rotating wheel like appearance, by means of sequentially shifting Illuminated LED arrays. Indian subcontinent is a land of [＃]
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Archives for 4017 IC Circuits
UP DOWN Logic Sequence Controller Circuit
UP DOWN Logic Sequence Controller Circuit In general, an amplifier can be defined as a circuit designed to boost an applied low power input signal into a high power output signal, as per the specified rating [＃]
The clap switch circuits explained here will toggle a connected load ON and OFF in response to alternate clap sounds? Here we discuss 4 unique and simple designs which can [＃]
When an inverter with square wave AC output is modified to generate a crude sinewave AC output, it is called a modified sine wave inverter. The following article presents 7 [＃]
In this post we learn how to build a homemade LED driver with dimmer and charger circuit for illuminating a 3D moon from a 5V USB source. The idea was [＃]
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Archives for 4017 IC Circuits
Patient Drip Empty Warning Indicator Circuit
Patient Drip Empty Warning Indicator Circuit
In this post we will learn about a simple mechanism, and a circuit which will enable a patient＊s IV drip bottle system to sound an alarm whenever it gets almost [＃]
The TSOP17XX series ICs are special infrared sensor devices built for responding to specific range of infrared frequencies and convert it into an electrical pulsed output. It thus features a [＃]
In this project we are going learn how to make a simple unipolar stepper motor driver circuit using 555 timer IC. Apart from 555 timer we also need IC CD [＃]
In this post we diagnose a PIR activated message player circuit, which was sent by Mr. Norman Kelley one of the dedicated followers of this blog for improvements. Let＊s learn [＃]
In this post we learn how to make a 10 step sequentially switching latch circuit which is used for switching ON 10 high power amplifiers sequentially. The idea was requested [＃]
In this post we study how to make a simple clap operated toy car circuit using a clap switch circuit and a MIC amplifier, to control its forward and reverse [＃]
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Archives for 4017 IC Circuits
Automatic Food Warmer Lamp for Hotels
Automatic Food Warmer Lamp for Hotels
The post discusses a simple food warmer lamp timer circuit for restaurants and hotels which can be used for automatically switching OFF the lamps after a predetermined time whenever the [＃]
The post details a simple remote controlled solar lamp intensity controller circuit which can be used for controlling the street lamp LED intensity without practically reaching for the LED box. [＃]
The post explains how to make a chasing ※WELCOME§ display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display [＃]
This first part of the proposed 4kva synchronized stackable inverter circuit discusses how to implement the crucial automatic synchronization across the 4 inverters with regards to frequency, phase and voltage [＃]
In this article we learn how to make a multilevel (5 step) cascaded inverter circuit using a very simple concept developed by me. Let＊s learn more regarding the details. The [＃]
The article presents a simple LED indicator timer circuit which can be used with board games for indicating the elapsed time or the time consumed by the player to complete [＃]
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Archives for 4017 IC Circuits
LED Meteor Shower, Rain Tube Circuit
LED Meteor Shower, Rain Tube Circuit
In this post we learn how to design an intriguing LED light effect that generates a collapsing metor shower like appearance. The idea was requetsed by Mr.Pinto Mondal. Technical Specifications [＃]
The post explains a simple LED flashing beacon circuit which exactly simulates a rotating police beacon light by generating alternating pulses of suddenly rising and fading illumination effect on the [＃]
The post explains a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired [＃]
The post presents a cheap cellphone remote controlled water pump circuit which allows farmers (user) to switch ON their field water pump without practically visiting the spot, thus saving precious [＃]
The post discusses a relatively easy lipo battery balance charger circuit which is designed to continuously scan and charge the connected cells of the battery. The idea was requested by [＃]
The article explains a simple two step IC 555 timer circuit which can be used for sequentially operating any specified industrial mechanism system, in this application it＊s used for operating [＃]
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Archives for 4017 IC Circuits
Simple Scrolling RGB LED Circuit
Simple Scrolling RGB LED Circuit
A simple RGB (Red, Green, Blue) moving or scrolling LED display can be made using a few 4017 ICs. Let＊s learn the procedure in detail. Understanding RGB LED RGB LEDs [＃]
The post explains a simple to build ultrasonic insect repellent circuit which can be installed in farms and used by the farmers for driving away all sorts of insects, bugs, [＃]
In this post we＊ll learn about a simple circuit which allows a manual adjust feature for the spark timing of a motorcycle＊s CDI either to achieve an advance ignition, retarded [＃]
In this post we＊ll try to understand regarding how a pendulum mechanism can be used for achieving overunity and generate electricity in the form of free energy. Pendulum Working Principle [＃]
The post explains a simple programmed reverse forward motor circuit which is used for accomplishing a toy application. The idea was requested by Mr. Matthew. Technical Specifications I am a [＃]
The post discuses a sequentially advancing 25 LED timer circuit which may be initiatedInfrared Remote Controlled Door Lock Circuit
Infrared Remote Controlled Door Lock Circuit
In this article we learn about a simple infrared remote controlled door lock circuit which can be used for securely locking doors through unique foolproof IR frequencies. The proposed infrared [＃]
This simple circuit can be used to emulate the operation of a music box. The number of notes may be limited to 10 at the most, and therefore is capable [＃]
In this post we learn how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a [＃]
The post discusses a simple morse code lamp flasher circuit which may be used for model lighthouse signalling applications. The idea was requested by Mr. Frank Gardner. 
In this post we learn how to make a simple sine wave inverter using bubba oscillator sine wave generator. The idea ws requested by Mr. Ritwik Naudiyal. Technical Specifications
Here we learn about a couple of simple circuit configurations which will convert any low power inverter to a massive high power inverter circuit. You＊ll find a plenty of small [＃]
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Archives for 4017 IC Circuits
3 Automatic Fish Aquarium Light Optimizer Circuits
3 Automatic Fish Aquarium Light Optimizer Circuits
The post explains a 3 beautiful fish aquarium light optimizer circuits your fishes will love.These are designed to automatically control the illumination of a group of appropriately selected LEDs with [＃]
The post explains a cell phone remote control circuit using the light from its display. The idea was requested by
The post presents an industrial water level controller with drain timer circuit. The idea was requested by Mr. Lanfrank. Technical Specifications I saw your blog and was impressed by your [＃]
The post explains a circuit that will switch off a group of lamps in sequence with a predetermined delay rate, as set by the user through a built in pot. [＃]
Here we discuss a an emergency lamp circuit which includes an infrared remote operated brightness control feature. The
The post explains a programmable Auto-Starter circuit which may be used for getting a pre-programmed set of automatic sequential operations over a Safety Buoy Switch Circuit for Human Powered Submarine
Safety Buoy Switch Circuit for Human Powered Submarine
The post explains a safety
The article details a circuit design for controlling a washing machine motor agitator through a preset time sequence which also includes an alternate reversing of the motor rotation. The circuit [＃]
The IC 4017 can be considered as one of the most useful and versatile chip having numerous electronic circuit applications. About IC 4017 Technically it is called the Johnsons 10 [＃]
The article describes how to make a sequential LED array light circuit with an sequentially illuminating LED forming a bar graph kind of LED formation. Introduction The article describes a [＃]
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Archives for 4060 IC Circuits
7 Simple Inverter Circuits you can Build at Home
7 Simple Inverter Circuits you can Build at Home
These 7 inverter circuits may look simple with their designs, but are able to produce a reasonably high power output and an efficiency of around 75%. Learn how to build [＃]
A flyback configuration is the preferred topology in SMPS application designs mainly because it guarantees complete isolation of the output DC from the input mains AC. Other features include low [＃]
A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of [＃]
The post discusses a buzzer circuit with an incrementing beeping rate, which can be used in critical warning signalling applications. The idea was requested by Mr. Lee. Buzzer with Progressive [＃]
The post explains an upgraded version of my previous mains 220V/120V high-low voltage cut off protection circuit which now includes a delayed restoration of power for the load with 3 [＃]
The post details a timer circuit for submersible borewell pumpset which alternately switches the pumpset ON/OFF at a predetermined rate in order to allow the ground water sufficient time to [＃]
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Archives for 4060 IC Circuits
IC 4060 Latching Problem [Solved]
IC 4060 Latching Problem [Solved]
The post talks about an IC 4060 timer circuit problem implemented in a coffee wending machine,
In this post we discuss a simple laser GSM call alert security circuit which immediately calls the master as soon as an intruder is detected through a laser beam interruption. [＃]
A programmable sequential timer along with a triac dimmer is configured for making this kiln temperature controller circuit, further details are explained in the following article. The idea was requested [＃]
In this article we learn how to make a simple and accurate autoclave heater controller circuit with timer. The idea was requested by Mr. Rajjab. Circuit Objectives and Requirements This [＃]
The article explains a generator/UPS/Battery relay changeover circuit for implementing a customized optimization for a generator, UPS, battery power network, in order to enhance the operational efficiency of the system. [＃]
The article presents a simple water saving irrigation system circuit idea which can be used for implementing an efficient water management and control in farms and irrigation systems. The idea [＃]
Archives for 4060 IC Circuits
Digital Power Meter for Reading Home Wattage Consumption
Digital Power Meter for Reading Home Wattage Consumption
The article discusses a simple digital power meter circuit which can be installed in homes for getting an instant reading of the wattage being consumed by the attached appliances or [＃]
The post details a delay OFF adjustable motor controller circuit so that the motor can be assigned a fixed predetermined operating time, or delay OFF time. The idea was requested [＃]
In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after [＃]
In this post we＊ll study two simple externally triggered timer circuits for two different application needs, the ideas were requested by Mr. Alan and Ms.Stevanie Circuit Request#1 I only wish [＃]
The post explains a 3 beautiful fish aquarium light optimizer circuits your fishes will love.These are designed to automatically control the illumination of a group of appropriately selected LEDs with [＃]
The post explains a porch light circuit with programmable timer controller which enables the connected LEDs to light up or shut off after some delay, as preferred by the user, [＃]
Archives for 4060 IC Circuits
Aquarium Fish Feeder Timer Controller Circuit
Aquarium Fish Feeder Timer Controller Circuit
The post explains an aquarium feeder timer circuit which sustains a set of continuous operations as per a predetermined timing sequence through the respective pot controls. The idea was requested [＃]
In this post we try to investigate a couple of
Here we learn about a circuit configuration which produces adjustable sequential timing outputs for controlling a heater device through a simultaneously sequencing temperature controller circuit which can be also pre-programmed [＃]
The post explains a programmable Auto-Starter circuit which may be used for getting a pre-programmed set of automatic sequential operations over a 
The post explains a simple yet accurate programmable diesel generator timer circuit which can be used for achieving discretely programmable ON/OFF timing sequence for the connected diesel generator set. The [＃]
In this post we learn how to build a simple yet accurate timer circuit using the IC 4060 and some ordinary passive components. Main Advantage of using IC 4060 as [＃]
Archives for 4060 IC Circuits
IC 4060 Pinouts Explained
IC 4060 Pinouts Explained
Another versatile device, the IC 4060 has numerous applications and can be used for implementing various useful functions in an electronic circuit. Introduction Basically the IC 4060 is a oscillator/Timer [＃]
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Archives for 555 IC Circuits
IC 555 Astable Multivibrator Circuits
IC 555 Astable Multivibrator Circuits
The IC 555 astable multivibrator is a configuration where the IC 555 output continuously switches between an ON state and an OFF state at a given frequency, determined by its [＃]
In article below explains the control circuit for an automatic tennis ball throwing machine, designed to throw a tennis ball through a mechanized catapult machine, controlled with powerful motors. In [＃]
In this post we will learn how to configure IC 555 astable circuit to create various siren and alarm sound effect generator circuits The versatile astable multivbrator configuration of IC [＃]
In this post we will learn how IC 555 can be used for making 10 different types of monostable multivibrator circuits, such as one-shot type, debounce preventor, retriggerable type, touch [＃]
In a sawtooth waveform the voltage increases slowly in a slanting manner or diagonally, then as soon as it reaches the peak, the waveform voltage suddenly drops to zero. Once [＃]
In this post we will learn how to build and optimize basic IC 555 oscillator circuits, whose waveforms can be further enhanced for generating complex sound effects. Overview The basic [＃]
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Archives for 555 IC Circuits
10 Best Timer Circuits using IC 555
10 Best Timer Circuits using IC 555
The circuits explained here are 10 best small timer circuits using the versatile chip IC 555, which generates predetermined time intervals in response to momentary input triggers. The time intervals [＃]
In this post we study the datasheet, pinout, and technical specifications of the IC LMC555 which is a CMOS version of the standard IC 555. The IC is equipped with [＃]
In this post we discuss how to modify an existing button start system in motorcycles so that it＊s disabled as soon as the engine has started and gained the required [＃]
A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. 3 easy to [＃]
A couple of simple boost converter circuts are explained in this post, whch can be build and applied by any hobbyists for their own specific requiremenet. What is a Boost [＃]
This simple capacitor tester is capable of testing leaky electrolytic capacitors in the range of 1uf to 450uf. It can test large start and run capacitors as well as 1uf [＃]
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Archives for 555 IC Circuits
Simple Transformer Winding Tester Circuit
Simple Transformer Winding Tester Circuit
This test set is primarily designed to test step-down, step-up transformers, for open and shorted winding. It can determine if the device under test has a low resistance to ac [＃]
This simple MOSFET tester does a quick job of testing both enhanced mode type N and P-channel mosfets. It checks for shorts between gate, drain and source. Designed By: Henry [＃]
In this post we learn how to make a simple yet efficient transistor/diode tester circuit, that will not only test the quality of a BJT, but will also help to [＃]
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was [＃]
In this post we will learn how to control servo motors using a joystick and Arduino. We will see overview about joystick, its pins, its construction and working. We will [＃]
In this project we are going learn how to make a simple unipolar stepper motor driver circuit using 555 timer IC. Apart from 555 timer we also need IC CD [＃]
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Archives for 555 IC Circuits
Wireless Servo Motor Control Using 2.4 GHz communication link
Wireless Servo Motor Control Using 2.4 GHz communication link
In this post we are going to construct a wireless servo motor circuit which can control 6 servo motors wirelessly on 2.4 GHz communication link. Introduction The project is divided [＃]
In this project we are going to learn the basic specifications of a servo motor and also how to operate a Servo Motor using a 555 timer IC, and a [＃]
The article explains a simple car tank water sensor alarm circuit using IC 555 and a pulsating signal on the sensing probes to pevent corrosion on the probes. The idea [＃]
The post discusses the making of 3 simple yet effective smart laser alarm protection circuit using the IC 555, for securing a specified restricted zone from human interventions. The idea [＃]
In this article we discuss a circuit design which will help to optimize the torque of an induction motor used in electric vehicles, by analyzing its current consumption. Using a [＃]
The post discusses a buzzer circuit with an incrementing beeping rate, which can be used in critical warning signalling applications. The idea was requested by Mr. Lee. Buzzer with Progressive [＃]
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Archives for 555 IC Circuits
High Current Wireless Battery Charger Circuit
High Current Wireless Battery Charger Circuit
In this article we learn regarding how to design and make your own customized high current wireless battery charger circuit using wireless power transfer concept. Introduction In many of my [＃]
The post discusses an electronic engine speed governor or controller circuit using an RPM feedback signal loop through a hall effect sensor network. The idea was requested by Mr. Imsa [＃]
The post discusses a diesel generator RPM controller circuit for boats using PWM technique and also using a simple triac shunt circuit. The idea was requested by Mr. Dave. Circuit [＃]
The post explains an LED based intruder position indicator circuit which will indicate the position of the burglar throughout the secured corridor as the person tries to sneak past the [＃]
The post discusses a simple material storage level controller circuit which can be used for automatically activating and deactivating a storage filling motor whenever the storage container is filled to [＃]
The article explains a simple illuminated crosswalk safety light circuit for ensuring a safe walking passage for the user amidst heavy traffic. The idea was requested by Mr. John. Circuit [＃]
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Archives for 555 IC Circuits
6 Best IC 555 Inverter Circuits Explored
6 Best IC 555 Inverter Circuits Explored
The 6 unique designs below explains us how an ordinary single IC 555 astable multivibrator could be used effectively to make an inverter without involving complex stages. No doubt IC [＃]
The post explains a beacon indicator circuit for combine harvester grain tanks. The idea was requested by Mr. John Bosch. Circuit Objectives and Requirements I would like to retrofit the [＃]
A simple tea, coffee vending machine circuit idea is explained here which allows a customer to access the beverage with a press of a button and by inserting a genuine [＃]
In this post we learn how to make a simple IC 555 based alternate relay timer circuit for toggling a couple of loads alternately with a specified length of delay, [＃]
The post discusses a simple RC helicopter remote control circuit using 433kHz RF modules, without any microcontroller or complex joystick implementations. The idea was requested by Mr. Jitendra. Circuit Objectives [＃]
In this article we learn regarding a motorized sun shade circuit which can be used for achieving an automatic motorized extension and retraction of sun shades or hoods. The idea [＃]
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Archives for 555 IC Circuits
Simplest Quadcopter Drone Circuit
Simplest Quadcopter Drone Circuit
In this post we will discuss the basics of quadcopter body assembly using aluminum pipes and bolts, in the later sections of the article we will also discuss regarding a [＃]
The post discusses a small induction heater circuit for school project and exhibitions, using a very ordinary IC 555 astable PWM circuit. The idea was requested by Mr. Anthony Technical [＃]
The post explains an innovative brake light circuit using speed detection of the vehicle which could be a motorcycle. The circuit implements an advanced brake light switch ON ensuring a [＃]
The post explains the how IC 555 works, its basic pinout details and how to configure the IC in its standard or popular astable, bistable, and monostable circuit modes. The [＃]
Do you have a habit of walking in night? Well, that habit isn＊t that good, so one must try to get rid of it gradually. This article discusses a simple [＃]
A very interesting push button operated fan regulator circuit with LED display is explained in the following article, which can be built and installed at home for the suggested purpose. [＃]
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Archives for 555 IC Circuits
Solar E Rickshaw Circuit
Solar E Rickshaw Circuit
The post explains a simple solar electric rickshaw or E rickshaw circuit which can easily built by anybody at home and used with a locally fabricated vehicle. The idea was [＃]
The post explains a simple obstacle avoiding robot circuit without microcontroller and without using special motor driver circuits or ICs. The idea was requested by Mr. Faiyyaz The Design Basically [＃]
The simple bathroom lamp timer circuit features a delay OFF timer which switches OFF the triggered lamp after a set predetermined time delay, additionally the circuit also includes a delay [＃]
In this post we learn how to make a simple railway signal lamp which can be used by the guards for providing a handheld signalling to the various trains with [＃]
Although a quadcopter remote control circuits can be very easily procured from the market or from any online store, an avid electronic hobbyist is never allowed to learn how actually [＃]
The circuit presented here is a tester circuit for testing CDIs for motorcycles and three-wheelers. Rotating Beacon LED Simulator Circuit
Rotating Beacon LED Simulator Circuit
The post explains a simple LED flashing beacon circuit which exactly simulates a rotating police beacon light by generating alternating pulses of suddenly rising and fading illumination effect on the [＃]
The post explains a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and [＃]
The article discusses a remote controlled wireless home security circuit using which enables the detection of a possible intrusion way in advance depending on how and where the remote sensors [＃]
In this post we learn how to trick an inverter＊s ※no load auto-shutdown§ feature through an external circuit so that the inverter may be kept running even with minor, below [＃]
The post presents a cheap cellphone remote controlled water pump circuit which allows farmers (user) to switch ON their field water pump without practically visiting the spot, thus saving precious [＃]
In this post we learn how to make a simple classroom debate timer circuit which can be used to illuminate two sequentially toggling lamps to indicate the start and finish [＃]
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Archives for 555 IC Circuits
Simple Pneumatic Timer Circuit
Simple Pneumatic Timer Circuit
The article explains a simple two step IC 555 timer circuit which can be used for sequentially operating any specified industrial mechanism system, in this application it＊s used for operating [＃]
The insect killer circuit presented here is designed to attract insects during night, and electrocute them through a high voltage mesh trap. The unit can be installed in farms for [＃]
The post explains a simple to build ultrasonic insect repellent circuit which can be installed in farms and used by the farmers for driving away all sorts of insects, bugs, [＃]
The post explains a simple mosquito electrocution net, or mesh circuit which can be easily built and installed on a home window for blocking and killing an in-surge of mosquitoes. [＃]
The following post explains a circuit idea which can be used for identifying the switching pattern of set of valves from a remote location, using just two wire from the [＃]
The discussed circuit is designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking [＃]
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Archives for 555 IC Circuits
PWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON
PWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON
The post explains an effective PWM motor soft start circuit which can be used for enabling heavy motors with a soft start and thus prevent the equipment from drawing dangerous [＃]
The post explains a simple IC 555 based PWM controller circuit which may be used for controlling the intensity of a specified LED bank. The idea was requested by Mr.Rajdeep. [＃]
The post details a simple transistorized PWM controlled atomizer circuit for E-Cigarettes which may be used for controlling the filament heat levels of an atomizer. The idea was requested by [＃]
The post explains a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. [＃]
In this article we＊ll study a digital stopwatch design configured around the very popular IC LM555 in conjunction with a 4-digit counter IC with multiplexed 7-segment output drivers (MM74C926). Written [＃]
In this post we learn how to make an illuminated LED cricket stump and bails for helping umpires declare a foolproof OUT, NOT-OUT decisions. The Circuit Concept You might be [＃]
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Archives for 555 IC Circuits
Make this Simple Music Box Circuit
Make this Simple Music Box Circuit
This simple circuit can be used to emulate the operation of a music box. The number of notes may be limited to 10 at the most, and therefore is capable [＃]
In this post we learn a simple IC 555 set/reset application circuit for activating or deactivating a relay alternately. Circuit Operation This electronic set reset circuit is very simple, easy [＃]
The article is a continuation of the earlier post where we tried to find a solution for creating unique infrared IDs for trains in a model locomotive system. Here we [＃]
A simple flashing bicycle safety light circuit has been discussed in the following article In many occasions when we happen to go down the road at night, it is normal [＃]
This presented refrigerator door open alarm circuit which alerts you after a period of time whenever your refrigerator door is left open. This circuit becomes very handy, because in case [＃]
A simple barcode security lock circuit or barcode scanner circuit is explained in the following article using just a handful of ordinary components such as an op amp, an LDR [＃]
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Archives for 555 IC Circuits
Model Locomotive Infrared Controller Circuit
Model Locomotive Infrared Controller Circuit
The article discusses a model locomotive controller circuit using uniquely set IR beams for different locomotives allowing unique identification signals and controls for the engines. The idea was requested by [＃]
The post discusses a simple car laptop charger circuit for charging laptops from a 12V car battery using a IC 555 based boost converter. The idea was requested by one [＃]
Transcutaneous electrical nerve stimulation (TENS) is a term typically referred to the use of nonpharmacologic or noninvasive kind of treatment for neutralizing superficial pains. How
The post explains a super capacitor charger circuit for charging super capacitors which converts a 12V car battery voltage to an elevated 16V for charging a bank of super capacitors. [＃]
The post discusses a simple IC 555 based self optimizing solar battery charger circuit with buck converter circuit that automatically sets and adjusts the charging voltage in response to the [＃]
The post discusses a 555 based PWM circuit which can be implemented as a 150 nos or more LED light intensity controller circuit. The idea was requested by Mr. Anil [＃]
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Archives for 555 IC Circuits
Power Switch ON Alarm with Auto OFF Circuit
Power Switch ON Alarm with Auto OFF Circuit
The post discusses a simple monostable based power switch ON alarm circuit which automatically switches OFF after an adjustable preset delay. The idea was requested by Mr. Will Boswell. Technical [＃]
In this post we try to investigate a couple of
The post discusses an LED controller circuit having a boost and dimming facility specifically designed for underwater shooting application. The idea was requested by Mr. Svein. The Circuit Request I [＃]
Here we study a simple IC 555 based monostable circuit whose output monostable time duration starts only after the input trigger is released thus making sure that the trigger ON [＃]
A Taser circuit also known as Stun Gun circuit is one non-lethal electric shock producing unit used to paralyze a person for a time being without causing any severe damage [＃]
Here we learn about a circuit configuration which produces adjustable sequential timing outputs for controlling a heater device through a simultaneously sequencing temperature controller circuit which can be also pre-programmed [＃]
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Archives for 555 IC Circuits
Flashing LED Battery Low Indicator Circuit
Flashing LED Battery Low Indicator Circuit
The post explains a simple low/normal battery voltage status indicator circuit through a flashing and a constant LED, where the flashing LED indicates a normal status while the solid indicator [＃]
The shop shutter guard circuit discussed here guards your shop when its shutter is closed i.e., at night if an intruder tries to break the shutter, the piezo senses the [＃]
The proposed circuit is very useful which warns the car driver before hand once the radiator gets heated up above the preset level. How it Works The working of this [＃]
The post discusses a simple infrared based proximity sensor circuit which is implemented to study birds and their behavior, by installing the circuit beside artificially made bird nests. The idea [＃]
A Class D amplifier also termed as a digital amplifier uses pulse width modulation or PWM technology for amplifying the fed small amplitude analogue music signal. Why a Class D [＃]
The post explains an universal IC 555 based buck-boost circuit which can be used for various different applications involving efficient power processing requirements. Using IC 555 for the Buck-Boost This [＃]
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Archives for 555 IC Circuits
IC 555 Automatic Emergency Light Circuit
IC 555 Automatic Emergency Light Circuit
The discussed 2 simple IC 555 based emergency lamp system employs just a single IC 555 and yet is able to switch more than 20 LEDs directly, it will illuminate [＃]
The article explains a simple low battery indicator circuit using the IC 555 and a few resistors only. Circuit Concept Many electronic circuits such as emergency
The following post explains a four simple yet a safe way of charging a Li-ion battery using ordinary ICs like LM317 and NE555 which can be easily constructed at home [＃]
The IC 555 is an extremely useful and versatile device which can be applied for configuring many useful circuits in the field of electronics. One very useful feature of this [＃]
IC 555 adjustable timer explained here can be adjusted from any time delay 1 second to 3 hours for operating any load through a relay control The produced time delay [＃]
In this post we will talk about a couple of easy yet very handy little circuits in the form of 555 LED Flasher Circuits (Blinking, Flashing, Fading Effect)
555 LED Flasher Circuits (Blinking, Flashing, Fading Effect)
In this post we will learn how to assemble an IC 555 astable circuit for generating interesting LED flasher circuits with blinking and fading light effects with some minor modification [＃]
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Archives for 741 IC Circuits
IC 741 Power Supply Circuits
IC 741 Power Supply Circuits
In this post we learn how to make simple yet fully stabilized and regulated, variable power supply circuits using the IC 741 op amp. Three versions of the 741 power [＃]
Devices that react to variations in atmosphere or fluid heat are simple to construct due to the easy availability of thermistors. This car ice warning circuit explains how to implement [＃]
The basic function of a comparator circuit to compare two voltage levels at its input pins and produce an output to show which input voltage has higher potential than the [＃]
The clap switch circuits explained here will toggle a connected load ON and OFF in response to alternate clap sounds? Here we discuss 4 unique and simple designs which can [＃]
We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or [＃]
In this article we will try to understand the main specifications and datasheet of the Li-Ion cell 18650 2600 mAh, which is one of the most popular Li-ion batteries, and [＃]
Archives for 741 IC Circuits
How to Make a Simple Milliohm Tester Circuit
How to Make a Simple Milliohm Tester Circuit
I wanted a milliohm tester circuit that could be used to measure resistance on printed circuit boards to track down shorted components. I looked at several designs and combined several [＃]
In this post we learn how to build and use a 18V battery charger circuit for a cordless drill machine. The idea was requested by Mr. Chibuzo. Technical Specifications Here [＃]
The post explains how to set or adjust an opamp 741 IC based battery charger circuit for implementing an automatic cut-off for the connected battery once it reaches the full-charge [＃]
The post narrates an automatic Battery Bank charger circuit with an automatic over charge cut-off feature for operating with an electric car. The idea was requested by Mr. George. Circuit [＃]
The post explains a battery charger circuit specifically designed for camper and motorhome applications, so it can serve as an effective camper/motorhome battery charger circuit operating through any shore power [＃]
A very simple mud or soil moisture tester circuit can be built by using a single opamp and a few passive components, let＊s learn the details through the following article. [＃]
Archives for 741 IC Circuits
Opamp Hysteresis 每 Calculations and Design Considerations
Opamp Hysteresis 每 Calculations and Design Considerations
In most automatic battery charger circuits in this blog you might have seen an opamp with a hysteresis feature included for some crucial function. The following article explains the significance [＃]
The article explains a dual input hybrid solar and wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this [＃]
The IC LM321 is the single op amp version of LM324 which is a quad op amp IC and carries 4 of these ICs in one package. Therefore for applications [＃]
The proposed circuit was requested by one of the avid readers of my blog. It is a low battery warning indicator circuit using opamp IC 741 and can be used [＃]
A simple automatic bedroom lamp timer circuit has been described here to switch off your bedroom lamp after a fixed predetermined time. The use of the reliable 741 IC makes [＃]
The 8 fundamental IC 741 based op amp circuits presented here are not only interesting but also very amusing to build. The included circuit ideas like inverting and non-inverting amplifiers, [＃]
Archives for 741 IC Circuits
Make a Workbench Multimeter With the IC 741
Make a Workbench Multimeter With the IC 741
Testing and troubleshooting electronic project circuits requires a multimeter, so new hobbyists may feel interested to try the following homemade multimeter circuits as their next electronic project. Using a Single [＃]
In this article we study an op amp based circuit designed to measure AC millivolts accurately, let＊s learn the details from the following explanation. The circuit shown below can be [＃]
Archives for Amplifiers
Simple 10 Watt Amplifier Circuits Explained
Simple 10 Watt Amplifier Circuits Explained
The post comprehensively explains 3 easy to build 10 watt power amplifier circuits, which can be built using discrete parts, such as resistors, transistors, and MOSFETs. The MOSFETs used in [＃]
The circuit of a 60 watt power amplifier is shown in the below figure. It＊s design layout is simple and very conventional. It has a completely symmetrical pattern which has [＃]
A public address system (PA system) is an electronic system that includes a set of audio electronic devices such as microphones, amplifiers, loudspeakers, and other similar audio equipment. It is [＃]
A bench amplifier is a small test amplifier which includes basically all the features that are required for testing the performance of an input audio signal. It can be also [＃]
The post explains how to configure a couple of LM380 ICs in the bridged format to create an output power that＊s two times more or double of a single IC [＃]
While using amplifiers, we sometimes experience this very annoying thump sound, popping up in loudspeakers whenever the amplifier is switched ON or OFF. This normally happens with amplifiers that are [＃]
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Archives for Amplifiers
70 Watt Stereo Amplifier Circuit
70 Watt Stereo Amplifier Circuit
In this post we learn how to build a simple 70 + 70 watt stereo power amplifier circuit using transistors. The entire design along with power supply and PCB layouts [＃]
In this post we will discuss a few high frequency RF converter and preamplifier circuit designs which can be used for amplifying or enhancing the reception of an existing RF [＃]
Audio amplifiers which are designed to amplify an analogue audio signal through pulse width modulation or PWM processing and with adjustable duty cycle is known by many names including digital [＃]
The article explains the construction of the high bass boost speaker box system, which can be used for reproducing music with heavy bass effect, which can be adjusted with a [＃]
This 100 watt Guitar amplifier circuit can be used mainly for amplifying guitar sound and also a public address systems. To test its ruggedness, the unit is designed without any [＃]
The proposed slow-start power supply circuit is specially designed for power amplifiers to ensure that the loudspeaker connected with the amplifier do not generate the loud and unwanted ※thump§ sound [＃]
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Archives for Amplifiers
100 to 160 watt Power Amplifier Circuit using a Single IC OPA541
100 to 160 watt Power Amplifier Circuit using a Single IC OPA541
For anyone who is searching for an audio amplifier with massive output power in the order of 100 watt to 200 watts, using an absolute minimum parts count, this particular [＃]
In this article we are discussing a handful of mini audio amplifier circuit which can be built quickly for amplifying very tiny input signals into audible speaker outputs. 1) 1 [＃]
In this post we discuss various parameters that must be considered while designing a MOSFET power amplifier circuit. We also analyze the difference between bipolar junction transistors (BJT) and MOSFET [＃]
In this post we will learn a variety of op amp preampli
The three watt amplifier circuit discussed in the earlier post could be effectively upgraded into a 30 to 40 watt transistorized amplifier circuit, simply by adding a 2N3055 power output [＃]
A complete, self-contained, small and compact Hi-Fi stereo amplifier circuit with bass, treble, volume control is presented in the following article. This small compact stereo amplifier can be used for [＃]
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Archives for Amplifiers
LM4862 Amplifier Circuit 每 A Better LM386 Alternative
LM4862 Amplifier Circuit 每 A Better LM386 Alternative
The LM386 based amplifier is still very popular as one of the smallest sized amplifier chips. However, the LM386 is not perfect and has a few drawbacks and limitations. As [＃]
Is your power amplifier fuse blowing during power switch ON? It could be happening due to the initial high current drawn by the loudspeakers, when power is switched ON. The [＃]
In this post we will talk about 5 outstanding, easy to build, low distortion Hi-Fi 40 watt amplifier circuits that can be further upgraded to higher wattage through some minor [＃]
In this article we elaborately discuss a simple to built yet awesome 1000 watt amplifier circuit, which could be easily upgraded to achieve upto 2000 watt output. It uses relatively [＃]
This configuration is known as common-emitter configuration because here the emitter is used as the common negative terminal for the input base signal and the output load. In other words, [＃]
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Archives for Amplifiers
Convert Audio Amplifier into Pure Sinewave Inverter
Convert Audio Amplifier into Pure Sinewave Inverter
If you are not too keen in understanding the deep technical aspects of a true sine wave power inverter, yet want to build it within a couple of hours, then [＃]
Audio amplifiers which are designed to work with a 5 V supply from a USB socket such as from a computer USB are called an USB amplifiers. In this article [＃]
An impressive 120 watt amplifier circuit can be built by cascading a couple of TDA 2030 IC in a bridged tied load (BTL) configuration 
This 150 watt amplifier is designed to provide a full 150 watt peak to peak music power amplification over a 4 ohm loudspeaker. In this post we learn how to [＃]
In the field of audio amplifiers OCL stands for Output Capacitor-Less Amplifier design. How it Works In this OCL type of amplifier topology or configuration, the power output stage is [＃]
In this post we learn about a simple Hi-Fi balanced microphone preamplifier circuit and also evaluate the calculations, specifications of the design through formulas. What is a Balanced Preamplifier A [＃]
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Archives for Amplifiers
Simple 50 Watt Power Amplifier Circuit
Simple 50 Watt Power Amplifier Circuit
A simple 50 watt amplifier circuit is explained below, let＊s learn how to build it at home using this versatile single amplifier chip LM3876T By: Dhrubajyoti Biswas UPDATE: For 40 [＃]
This article is written with an intent to build a simple 20 Watt Amplifier By: Dhrubajyoti Biswas Why a Single Ended Class-A Amplifier A single-ended Class-A amplifier is probably one [＃]
The post explains how to build a simple yet powerful 32 watt amplifier circuit using a single chip TDA2050 and with a handful of resistors and capacitors. By: Dhrubajyoti Biswas [＃]
The post discusses a 6 simple, cheap class A power amplifier circuits which can be used for any small scale audio amplifier application. By: Dhrubajyoti Biswas 1) Zero Negative Feedback [＃]
A very simple yet useful 6 watt audio amplifier circuit using IC TDA1011 is explained in the following article, which can be built by new hobbyist and used for amplifying [＃]
In this article we are going to see how to build a microphone amplifier circuit with operational amplifier LM324. This circuit can be used as good pre-amplifier for audio projects. [＃]
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Archives for Amplifiers
5 Simple Preamplifier Circuits Explained
5 Simple Preamplifier Circuits Explained
As the name suggests a preamplifier circuit pre-amplifies a very small signal to some specified level that can be further amplified by an attached power amplifier circuit. It basically acts [＃]
The following discussion informs us regarding how to select the right power supply for a car amplifier which needs to be operated at home. The questions were raised by Mr. [＃]
The post explains how to make an electronic stethoscope amplifier circuit for enabling a loud audible reproduction of the heart beats which is being diagnosed. The article also reveals how [＃]
The post presents an in-depth discussion regarding the construction details of a universal high power amplifier which can be modified or adjusted to suit any range within 60 watt, 120 [＃]
The circuit idea explained below enables a power amplifier loudspeakers to switch ON only when there＊s an input music available, otherwise it makes sure that the loudspeakers remain shut off. [＃]
The discussed phone repeater circuit can extend the range of your land line ring sound from the phone such that one is able to make a call heard in another [＃]
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Archives for Amplifiers
3.7 V Class-D Speaker Amplifier Circuit for Differential Analog Input
3.7 V Class-D Speaker Amplifier Circuit for Differential Analog Input
A class D amplifier is basically a category of amplifier in which the power devices (mosfets and BJTs) are operated like switches. The associated output devices in such amplifier circuits [＃]
A Class D amplifier also termed as a digital amplifier uses pulse width modulation or PWM technology for amplifying the fed small amplitude analogue music signal. Why a Class D [＃]
In this post we learn the datasheet of the IC
The IC LM386 is a 8-pin tiny power amplifier chip, specially made for operating under relatively low voltage parameters, yet provide considerable amplification. IC LM386 amplifier circuit becomes suitable for [＃]
Music Amplifiers have always intrigued us due to their massive amplifying capabilities which completely changes the dimensions of the delivered music outputs. Fundamentally it＊s the power of the amplifier that＊s [＃]
No complex wiring, no costly MOSFETS and no cumbersome heatsinks, yet a powerful 200+200 watt stereo amplifier circuit, which can be built within hours using just a couple ICs, right [＃]
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Archives for Amplifiers
2 watt Amplifier Circuit
2 watt Amplifier Circuit
A very simple 2 watt audio amplifier circuit has been presented here which can be constructed by all new electronic hobbyists for amplifying small signal frequencies and for other similar [＃]
Due to some reason if the loudspeaker of a power amplifier gets shorted, that may lead to a fatal damage to the amplifier component. To prevent this an amplifier short [＃]
MOSFET based amplifiers as we all know are outstanding with their sound qualities and they can easily beat the performance of other counterparts based on power transistors or linear ICs. [＃]
The simple telephone ring tone amplifier circuit explained in this article saves the inconvenience of picking the telephone handset while speaking over a call. This circuit also particularly becomes useful [＃]
The mini crescendo 100 watt transistorized amplifier circuit explained here was built and tested by me and am extremely pleased by its performance and also its ruggedness as far as [＃]
A simple stereo audio amplifier circuit discussed here is built around the IC TDA 1521, requires very few external passive components and is able to provide a powerful 12 + [＃]
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Archives for Amplifiers
High Power 250 Watt MosFet DJ Amplifier Circuit
High Power 250 Watt MosFet DJ Amplifier Circuit
The powerful DJ MOSFET amplifier circuit design provided in this article is reasonably easy to build and will produce a thumping 250 watts of music into a 4 ohm loudspeaker. [＃]
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Archives for Arduino Engineering Projects
Arduino 2-Step Programmable Timer Circuit
Arduino 2-Step Programmable Timer Circuit
In this article we learn how to make a simple 2-step Arduino programmable timer circuit, which can be used to switch an electrical load ON/OFF with independently adjustable ON and [＃]
An electronic device or circuit which detects and indicates the various fuel levels in a fuel tank without a physical contact, through ultrasonic waves, is called an ultrasonic fuel level [＃]
In this post we present a list of around 20 popular Arduino boards that are used by engineering students and professionals for their specific application needs. The types of Arduino [＃]
In this tutorial we learn how to do basic Arduino programming through example codes and sample programs. This tutorial can be an extremely valuable course for all the newcomers who [＃]
In this post we sort out a list of most popular, 50 hand-picked and best engineering circuit Arduino projects specially created for all aspiring engineers for their final year project [＃]
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Archives for Arduino Engineering Projects
Wireless Office Call Bell Circuit
Wireless Office Call Bell Circuit
In this post we are going to construct wireless office calling bell which can be used for calling 6 different personnel from head＊s / boss＊s desk or some other calling [＃]
In this post we are going to construct a circuit which can measure the speed of any vehicle on roads and highways. The proposed circuit is kept stationary at a [＃]
In this post we are going to learn about strain gauge based load cell. We will be exploring what Strain Gauge is, what Load Cell is, temperature effect on strain [＃]
In this post we are going take a look at ※I2C§ or ※IIC§ or ※I square C§ based LCD adapter module, which will reduce wire connections between Arduino and LCD [＃]
In this post we are going to construct a RFID based attendance system, which can record attendance of 12 students / staffs for a given time window and this system [＃]
In this post we are going to construct an automatic school bell/college bell system using Arduino, 16 x 2 display and real time clock module. You can program this project [＃]
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Archives for Arduino Engineering Projects
SMS Based Water Supply Alert System
SMS Based Water Supply Alert System
In this post we are going to construct a circuit which will notify the user via SMS if the water supply to you area / home is initiated. It can [＃]
In this post we are going to construct an incubator using Arduino which can self-regulate its temperature and humidity. This project was suggested by Mr. Imran yousaf who is an [＃]
In this post we are going to construct a SMS based water pump controller with automatic shutdown of pump when no water flow through the pump is detected.
In this project we are going to step down 12v D.C to any D.C value between 2 and 11volts. The circuit which steps down the D.C voltage is known as [＃]
In this post we are going to construct a digital water flow meter using Arduino and 16 x 2 LCD display. We will be taking a look at YF-S201 water [＃]
In this post we are going to construct a car robot which can be controlled using a joystick on 2.4 GHz wireless communication link. The proposed project is not only [＃]
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Archives for Arduino Engineering Projects
L298N DC Motor Driver Module Explained
L298N DC Motor Driver Module Explained
In this post we are going to learn about L298N dual H-bridge DC motor driver module which can be used to drive brushed DC motors and stepper motors with microcontrollers [＃]
In this post we are going to construct a circuit which can detect color and trigger respective assigned relays. This project is accomplished using TCS3200 color sensor and Arduino board. [＃]
TCS3200 is a color light-to-frequency converter chip which can be programmed through a microcontroller. The module can be used for detecting all the 7 colors of white light with the [＃]
In this post we are going to construct a password based mains ON/OFF switch circuit, which can turn ON and OFF the AC mains supply, only when correct password is [＃]
In this post we learn how to build a line follower robot circuit using Arduino, which will run over a specifically drawn line layout and will faithfully follow it as [＃]
In this project we are going to control a manual robot through our cellphone using DTMF module and Arduino. By: Ankit Negi,Introduction to EEPROM in Arduino
Introduction to EEPROM in Arduino
In this post we are going to understand what EEPROM is, how data is stored on built in EEPROM on Arduino board＊s Microcontroller and also practically test how to write [＃]
In this post we are going to construct a battery eliminator / DC variable power supply which will automatically cut-off the supply, if the current flow through the load exceeds [＃]
In this post we are going to construct a digital ammeter using 16 x 2 LCD display and Arduino. We will understand the methodology of measuring current using a shunt [＃]
In this project we are going to interface a digital potentiometer with arduino. In this demonstration potentiometer MCP41010 is used but you can use any digital potentiometer of MC41** series. [＃]
In this post we will learn how to control servo motors using a joystick and Arduino. We will see overview about joystick, its pins, its construction and working. We will [＃]
In this post we are going to construct a digital capacitance meter circuit using Arduino which can measure capacitance of capacitors ranging from 1 microfarad to 4000 microfarad with reasonable [＃]
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Archives for Arduino Engineering Projects
Arduino Tachometer Circuit for Precise Readings
Arduino Tachometer Circuit for Precise Readings
A tachometer is a device that measures the RPM or angular velocity of a rotating body. It differs from speedometer and odometer as these devices deal with linear or tangential [＃]
In this post we are going to construct a wireless servo motor circuit which can control 6 servo motors wirelessly on 2.4 GHz communication link. Introduction The project is divided [＃]
In this article we learn how to make a transformerless AC voltmeter using Arduino. Making an analog voltmeter is not an easy task as to build one you must have [＃]
In this post we are going to make an LCD 220 V mains operated timer using Arduino whose countdown time can be witnessed via 16 x 2 LCD display. Introduction [＃]
In this post we are going to construct a GSM based car security system using Arduino, which can lock and unlock car＊s ignition system and central lock by sending a [＃]
In this post we are going to construct a 10 channel remote control switch based on ISM (industrial, Scientific and Medical) band. Arduino PWM Signal Generator Circuit
Arduino PWM Signal Generator Circuit
In this post we elaborately study how to make an Arduino based PWM signal generator circuit, which can be set or adjusted with a potentiometer or a pot to any [＃]
In this project, we discuss how to control motor speed using Arduino PWM circuit, and how to implement reverse forward or direction control in a DC motor using Arduino through [＃]
In this post we are going to construct a car reverse parking sensor alarm circuit using arduino, ultrasonic sensor and 2.4 GHz transceiver module. This project can be add-on feature [＃]
In this post we are going to construct an Arduino based wireless thermometer which can monitor the room temperature and external ambient temperature. The data is transmitted and received via [＃]
In this post we are going to construct a circuit for an Electronic Voting Machine using Arduino and SD card module where the election data is stored in the SD [＃]
In this post we are going to construct an automated water irrigation system for small garden using arduino and soil moisture sensor. Introduction The proposed system can monitor the soil [＃]
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Archives for Arduino Engineering Projects
Interfacing SD Card Module for Data Logging
Interfacing SD Card Module for Data Logging
In this post we are going to interface SD card module with arduino for data logging. We will see overview of SD card module and understand its pin configurations and [＃]
In this post we are going to construct an Mp3 player using arduino and DFPlayer. The proposed article has two Mp3 player designs, one with push button control and another [＃]
In this interesting post, we are going to make a simple single channel oscilloscope using Arduino and a personal computer, where the waveforms will be showcased on the PC＊s display [＃]
In this article we are going to construct a digital frequency meter using Arduino whose readings will be showcased on a 16℅2 LCD display and will have a measuring range [＃]
This article explains a simple pure sine wave inverter circuit using Arduino, which could be upgraded to achieve any desired power output as per the user＊s preference Circuit Operation In [＃]
In this post we learn how to generate sine wave pulse-width-modulation or SPWM through Arduino, which can be used for making a pure sine wave inverter circuit or similar gadgets. [＃]
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Archives for Arduino Engineering Projects
How to Interface Cellphone Display with Arduino
How to Interface Cellphone Display with Arduino
In this post we will be learning how to interface Nokia 5110 display with arduino microcontroller and how to display some text, we will also be constructing a simple digital [＃]
In this post we are going to construct an interesting Arduino based mini weather station project, which can show you ambient temperature, humidity, pressure, air quality and much more data [＃]
In this post we are going to construct an Arduino automatic street light dimmer circuit, which can reduce its brightness when no vehicle is passing in the road to save [＃]
In this post we are going to construct LED strip controller circuit using Arduino, which can turn ON/OFF and decrease/increase brightness of LEDs using ordinary IR (Infrared) remote. What is [＃]
In this post we are going to learn what servo motor is, how it functions, how to interface with microcontroller and what make this motor special from other motors. Being [＃]
In this post, we are going to see how to use an accelerometer with arduino and extract useful readings, which will be printed on serial monitor of IDE. We will [＃]
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Archives for Arduino Engineering Projects
How to Make LED Air Pollution Meter Circuit with Arduino
How to Make LED Air Pollution Meter Circuit with Arduino
In this project we are going to construct an air pollution meter using MQ-135 sensor and arduino. The pollution level in the air is indicated by series of 12 LED. [＃]
In this article we are going to construct a GSM fire alert circuit system using Arduino and DHT11 sensor, which will alert the user via text message (SMS), regarding a [＃]
In this article we are going to learn, how to send and receive SMS using GSM modem which is controlled by Arduino. Let us see, what GSM modem is, how [＃]
In this post we are going to construct a password security lock circuit, which can be accessed by a 6-digit password. To be more precise it is alpha numeric password. [＃]
In this post we are going to learn how to interface a 4℅4 keypad with Arduino. We are going to see what is a keypad, how it is constructed and [＃]
In this post, we are going to construct a calculator using Arduino, which can perform far complex arithmetical calculation than an ordinary calculator. The motto of this post is not [＃]
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Archives for Arduino Engineering Projects
Arduino Digital Clock Using RTC Module
Arduino Digital Clock Using RTC Module
In this post we are going to construct a digital clock using RTC or Real Time Clock module. We will understand what ※RTC§ module is, how to interface with Arduino [＃]
In this post we are going to construct a digital clock using 7 segment LED display with Arduino controlled design. How the Circuits Works The proposed 7 segment clock circuit [＃]
In this article we are going to construct an interesting project, which could potentially enhance your brain＊s capability. Let＊s learn how to make a TDCS brain simulator circuit. Overview This [＃]
In this article we are going to learn about Raspberry Pi single board computer, their specifications, how to use them in a project, we are also going to do a [＃]
In this article we are going to construct an ultrasonic distance meter circuit using Arduino and 16℅2 LCD. We are also going to see what an ultrasonic module is, how [＃]
In this article we are going to see how to build a home security system circuit using arduino which might save your home from intruders one day. Housebreaking happens every [＃]
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Archives for Arduino Engineering Projects
Digital Clock Circuit Using 16℅2 LCD Display
Digital Clock Circuit Using 16℅2 LCD Display
The post explains how to make a simple digital clock using Arduino and a 16 x 2 LCD display. Introduction As an electronics enthusiast at a stage we would have [＃]
In this article we are going to learn how to make an Arduino on a breadboard. We are also going to see what is an Arduino, how to program it [＃]
The
In this post we are going to construct a stopwatch which automatically starts timer when the runner begins to run and the timer stops when the runner reaches the end. [＃]
The write up explains the pinout and working details of the LCD module ※Arduino LCD KeyPad Shield (SKU: DFR0009)§ which is specifically manufactured for offering a quick plug-in compatibility for [＃]
This Arduino RGB sequential light generator circuit will generate a smooth flowing red, green blue pattern over the connected RGB LED. The LED used here is a four pin 30mA [＃]
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Archives for Arduino Engineering Projects
Arduino Musical Tune Generator Circuit
Arduino Musical Tune Generator Circuit
You can use this little Arduino musical tune generator circuit for a preferred application, such as for making an interesting door bell, as a car reverse horn, or music box [＃]
The article explains a simple mains failure backup circuit for providing Arduino boards an uninterruptible supply during such situations. The idea was requested by Mr. Fredrik. Technical Specifications This blog [＃]
In this Arduino tutorial we＊ll learn how to execute the tone() command for producing musical notes. The configuration will play a tiny musical tone that could be familiar to you. [＃]
The Atmel AVR Atmega32 is a low power CMOS based microcontroller chip manufactured on the AVR advanced RISC architecture. It is featured for carrying out technologically powerful instructions within each [＃]
One thing is great about microcontroller ICs, these are available almost in all parts of the globe and electronic retailers. Introduction Fundamentally microcontroller devices are popularly used in applications involving [＃]
The post discusses a basic Arduino function where we learn the process of fading an LED ON/OFF through some basic code implementations. Creating a Fading Effect We see how to [＃]
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Archives for Arduino Engineering Projects
Converting Analogue to Digital (Analogue Read Serial) 每 Arduino Basics
Converting Analogue to Digital (Analogue Read Serial) 每 Arduino Basics
In this Arduino basics we try to understand the code implementation procedure wherein an external analogue signal is fed to the Arduino analogue input and translated or converted into a [＃]
This Arduino basics discusses the method of
Here we learn the bare minimum code for compiling an Arduino and also the method of blinking an LED using an Arduino board. Learning the Bare Basics Here we discus [＃]
Before getting into the minute details of PIC programming, it would be first important to learn a few good programming methods. Understanding Registers To begin with suppose you type a [＃]
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Archives for Audio Projects
Active Filter Circuits using Op amps
Active Filter Circuits using Op amps
In this post we comprehensively discuss the various forms of active filter circuits, and learn about their working, types, characteristics, and practical applications circuits. Contributed By: Ken Madison In audio
Tone control circuits are basically filter circuits which are used to filter audio frequency signals so that only the desired range of frequencies are allowed to pass to the amplifier [＃]
The electronic 2 tone door bell circuit is designed around the popular IC 555. The IC 555 is extensively applied in numerous varieties of timers and also as a basic [＃]
A tuned radio frequency receiver (or TRF receiver) is a form of radio receiver which is made using a number of tuned radio frequency (RF) amplifier stages accompanied by a [＃]
In this post we will discuss a simple circuit concept which can be used to transform an ordinary analogue audio signal into a much vibrant and crisper digital music, by [＃]
Bigger speaker boxes produce proportionately higher bass effect, this fact is know to all of us. However, bigger boxes are not only expensive, they can be cumbersome and bulky. How [＃]
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Archives for Audio Projects
Electronic Drum Sound Simulator Circuits
Electronic Drum Sound Simulator Circuits
In this post we talk about a couple electronic drum sound simulator circuits which can be used for replicating actual drum beat sound electronically, using a few op amps and [＃]
The article explains the construction of the high bass boost speaker box system, which can be used for reproducing music with heavy bass effect, which can be adjusted with a [＃]
An audio delay line is a technique in which a given audio signal is passed through a series of digital storage stages, until the final audio output is delayed by [＃]
This touch volume control circuit has two touch pads which enable the user to increase or decrease the volume of an audio amplifier simply by touching the relevant touch pads. [＃]
A Hi-Fi surround sound system (5.1) typically consists of 4 speakers at the corners of the room, and a center speaker just below or above the TV or the video [＃]
For anyone who is searching for an audio amplifier with massive output power in the order of 100 watt to 200 watts, using an absolute minimum parts count, this particular [＃]
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Archives for Audio Projects
Digital Theremin Circuit 每 Make Music with your Hands
Digital Theremin Circuit 每 Make Music with your Hands
Named after its creator, the theremin originated in the Soviet Union in the beginning of 1920＊s. This comprised of a container installed with a couple of antennas. It did not [＃]
This circuit basically is a fluid level alarm indicator intended for alerting visually impaired individuals regarding the liquid level in a container such as cup, glass or bowl. The unit [＃]
The LM386 based amplifier is still very popular as one of the smallest sized amplifier chips. However, the LM386 is not perfect and has a few drawbacks and limitations. As [＃]
In this post we will learn how to build and optimize basic IC 555 oscillator circuits, whose waveforms can be further enhanced for generating complex sound effects. Overview The basic [＃]
As the name suggests, this device generates electronic sound, resembling human laughter. BASIC DESIGN To enable the circuit start the proposed operations, it must have a fundamental sound input or [＃]
An electronic touch organ is an intriguing musical device which produces very pleasant musical notes in response to finger touches on special touch sensitive electronic pads or buttons. Modern day [＃]
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Archives for Audio Projects
Build this Open Baffle Hi-Fi Loudspeaker System with Crossover Network
Build this Open Baffle Hi-Fi Loudspeaker System with Crossover Network
The open baffle hi-fi, high quality speaker design introduced here provides a substitute to the common loudspeaker housing. Its sound emission pattern resembles electrostatic pattern. It works without enclosure or [＃]
In this post we will talk about 5 outstanding, easy to build, low distortion Hi-Fi 40 watt amplifier circuits that can be further upgraded to higher wattage through some minor [＃]
In this article we elaborately discuss a simple to built yet awesome 1000 watt amplifier circuit, which could be easily upgraded to achieve upto 2000 watt output. It uses relatively [＃]
The proposed circuit is an oscillator circuit designed to generate a loud pistol like sound over a loudspeaker. A pistol sound generator circuit presented here can be used as button [＃]
Audio amplifiers which are designed to work with a 5 V supply from a USB socket such as from a computer USB are called an USB amplifiers. In this article [＃]
An impressive 120 watt amplifier circuit can be built by cascading a couple of TDA 2030 IC in a bridged tied load (BTL) configuration Simple 150 Watt Amplifier Circuit using Transistors
Simple 150 Watt Amplifier Circuit using Transistors
This 150 watt amplifier is designed to provide a full 150 watt peak to peak music power amplification over a 4 ohm loudspeaker. In this post we learn how to [＃]
In the field of audio amplifiers OCL stands for Output Capacitor-Less Amplifier design. How it Works In this OCL type of amplifier topology or configuration, the power output stage is [＃]
In this post we are going to construct an Mp3 player using arduino and DFPlayer. The proposed article has two Mp3 player designs, one with push button control and another [＃]
The explained circuits below are universal simple audio mixer circuits, that may be customized and upgraded to 5 channel or even 10 channel mixers, as desired by the user. Stereo [＃]
In this post we learn about a simple Hi-Fi balanced microphone preamplifier circuit and also evaluate the calculations, specifications of the design through formulas. What is a Balanced Preamplifier A [＃]
In this post we learn how to make a 10 step sequentially switching latch circuit which is used for switching ON 10 high power amplifiers sequentially. The idea was requested [＃]
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Archives for Audio Projects
Buzzer with Incrementing Beep Rate
Buzzer with Incrementing Beep Rate
The post discusses a buzzer circuit with an incrementing beeping rate, which can be used in critical warning signalling applications. The idea was requested by Mr. Lee. Buzzer with Progressive [＃]
This article is written with an intent to explain in detail behind the making of a simple surround-sound decoder circuit. By: Dhrubajyoti Biswas Overview The concept of the decoder was [＃]
A simple 50 watt amplifier circuit is explained below, let＊s learn how to build it at home using this versatile single amplifier chip LM3876T By: Dhrubajyoti Biswas UPDATE: For 40 [＃]
This article is written with an intent to build a simple 20 Watt Amplifier By: Dhrubajyoti Biswas Why a Single Ended Class-A Amplifier A single-ended Class-A amplifier is probably one [＃]
The post explains how to build a simple yet powerful 32 watt amplifier circuit using a single chip TDA2050 and with a handful of resistors and capacitors. By: Dhrubajyoti Biswas [＃]
The post discusses a 6 simple, cheap class A power amplifier circuits which can be used for any small scale audio amplifier application. By: Dhrubajyoti Biswas 1) Zero Negative Feedback [＃]
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Archives for Audio Projects
6 watt Audio Amplifier Circuit Using TDA1011
6 watt Audio Amplifier Circuit Using TDA1011
A very simple yet useful 6 watt audio amplifier circuit using IC TDA1011 is explained in the following article, which can be built by new hobbyist and used for amplifying [＃]
In this article we are going to see how to build a microphone amplifier circuit with operational amplifier LM324. This circuit can be used as good pre-amplifier for audio projects. [＃]
The post discusses a simple radio repeater circuit which can be built by any new hobbyist or a radio amateur for communicating over long distances using ordinary transmitters and radio [＃]
A crystal radio circuit is probably the simplest form of radio that uses hardly any electronic components, and needs absolutely no external power for the operations. Crystal Radio Concept The [＃]
As the name suggests a preamplifier circuit pre-amplifies a very small signal to some specified level that can be further amplified by an attached power amplifier circuit. It basically acts [＃]
The following discussion informs us regarding how to select the right power supply for a car amplifier which needs to be operated at home. The questions were raised by Mr. [＃]
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Archives for Audio Projects
Making a Stethescope Amplifier Circuit
Making a Stethescope Amplifier Circuit
The post explains how to make an electronic stethoscope amplifier circuit for enabling a loud audible reproduction of the heart beats which is being diagnosed. The article also reveals how [＃]
In this post we learn how to design audio filter circuits such as high pass filter and low pass filter circuits effortlessly without going through the hassles of complex simulation [＃]
In this article we go through a detailed discussion regarding how to design notch filters with precise center frequency and for maximum impact. Where Notch Filter are Used Notch filter [＃]
The post presents an in-depth discussion regarding the construction details of a universal high power amplifier which can be modified or adjusted to suit any range within 60 watt, 120 [＃]
You can use this little Arduino musical tune generator circuit for a preferred application, such as for making an interesting door bell, as a car reverse horn, or music box [＃]
The post discusses aHow to Make Dog Barking Preventer Circuit using High Frequency Deterance
How to Make Dog Barking Preventer Circuit using High Frequency Deterance
The discussed circuit is designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking [＃]
A very simple musical door bell circuit can be built and installed in homes, the design features a replaceable music chip option, and an adjustable ringtone duration, as per the [＃]
The circuit idea explained below enables a power amplifier loudspeakers to switch ON only when there＊s an input music available, otherwise it makes sure that the loudspeakers remain shut off. [＃]
The post explains a voice modulator circuit which will change or transform an individuals unique voice into a completely new form. The new voice will be different to the original [＃]
This simple circuit can be used to emulate the operation of a music box. The number of notes may be limited to 10 at the most, and therefore is capable [＃]
The discussed phone repeater circuit can extend the range of your land line ring sound from the phone such that one is able to make a call heard in another [＃]
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Archives for Audio Projects
How to Drive High Watt LEDs with Arduino
How to Drive High Watt LEDs with Arduino
The post explains the method of incorporating high watt LEDs with Arduino through external high voltage supplies. The question was put forth by Mr. Cole. The Circuit Question I stumbled [＃]
A class D amplifier is basically a category of amplifier in which the power devices (mosfets and BJTs) are operated like switches. The associated output devices in such amplifier circuits [＃]
Contact mics can be used to sense unusual sounds when attached to various surfaces.It also Produce sound when voltage is applied to it.With the help of a basic Pre-amp circuit [＃]
In this Arduino tutorial we＊ll learn how to execute the tone() command for producing musical notes. The configuration will play a tiny musical tone that could be familiar to you. [＃]
This article will illustrate a simple procedure to devise an unregulated 50V switching SMPS symmetric power supply of 350W. This unit can be substituted with the standard audio amplifier power [＃]
The post explains the construction of a ultrasonic directive speaker system also called parametric speaker which may be used to transmit an audio frequency over a targeted spot or zone [＃]
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Archives for Audio Projects
Class D Amplifier Circuit Using IC 555
Class D Amplifier Circuit Using IC 555
A Class D amplifier also termed as a digital amplifier uses pulse width modulation or PWM technology for amplifying the fed small amplitude analogue music signal. Why a Class D [＃]
When it comes to making an FM receiver it＊s always thought to be a complex design, however the one transistor simple FM receiver circuit explained here simply shows that it [＃]
The following article
The proposed 10 band graphic equalizer circuit can be used in conjunction with any existing audio amplifier system to get an enhanced 10 stage audio processing, and customized tone control. [＃]
The post explains a simple low pass filter circuit which can be used in conjunction with subwoofer amplifiers for acquiring extreme cuts or bass in the frequency range 30 and [＃]
The article explains a single chip circuit which can be used for recording and playing back short voice clips or any audio clip ranging from 20 to 60 seconds. About [＃]
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Archives for Audio Projects
Simplest AM Radio Circuit
Simplest AM Radio Circuit
The following circuit was taken from an old electronic book, it is indeed a very nice little two transistor radio receiver circuit which utilizes very few components yet is able [＃]
The presented circuit of a musical greeting card circuit was requested by one of the keen readers of this blog, so I designed this
In this post we learn the datasheet of the IC
The article presented below describes a very simple intercom system which can be built and installed at any required place very cheaply. The circuit utilizes just a single IC and [＃]
This is probably the simplest radio receiver circuit that one could ever imagine of making. The circuit is so simple that it could be finished assembling within a few minutes [＃]
In the previous post we discussed a piezo transducer element and learned how to use it with electronic circuits. In this article we will see how a piezo tranducer can [＃]
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Archives for Audio Projects
Make This Powerful 200+200 watts Car Stereo Amplifier Circuit
Make This Powerful 200+200 watts Car Stereo Amplifier Circuit
No complex wiring, no costly MOSFETS and no cumbersome heatsinks, yet a powerful 200+200 watt stereo amplifier circuit, which can be built within hours using just a couple ICs, right [＃]
A very simple 2 watt audio amplifier circuit has been presented here which can be constructed by all new electronic hobbyists for amplifying small signal frequencies and for other similar [＃]
Due to some reason if the loudspeaker of a power amplifier gets shorted, that may lead to a fatal damage to the amplifier component. To prevent this an amplifier short [＃]
MOSFET based amplifiers as we all know are outstanding with their sound qualities and they can easily beat the performance of other counterparts based on power transistors or linear ICs. [＃]
The simple telephone ring tone amplifier circuit explained in this article saves the inconvenience of picking the telephone handset while speaking over a call. This circuit also particularly becomes useful [＃]
In this post we learn to make an active loudspeaker system circuit for enabling self sustained amplification of any music source that may be directly plugged in to the active [＃]
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Archives for Audio Projects
How to Make an Outstanding Home Theater System
How to Make an Outstanding Home Theater System
The article discussed here provides a simple, cheap home theater system circuit that may be built at home and used for the desired purpose. Introduction The results from this circuit [＃]
The mini crescendo 100 watt transistorized amplifier circuit explained here was built and tested by me and am extremely pleased by its performance and also its ruggedness as far as [＃]
The article explains a very simple circuit of a wireless speaker system which can be used for playing hi quality music wirelessly from your TV set, DVD player, Ipod, cell [＃]
A simple stereo audio amplifier circuit discussed here is built around the IC TDA 1521, requires very few external passive components and is able to provide a powerful 12 + [＃]
The powerful DJ MOSFET amplifier circuit design provided in this article is reasonably easy to build and will produce a thumping 250 watts of music into a 4 ohm loudspeaker. [＃]
An impressive little machine gun sound effect generator circuit is discussed here. Once built can be integrated with any audio amplifier to experience a roaring bullet studded war like simulation. [＃]
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Archives for Audio Projects
Simple Bird Sound generator Circuit
Simple Bird Sound generator Circuit
The diagram presented below shows a simple circuit of a bird sound generator. All the parts are very
An LED music level indicator is a circuit that will respond to the connected music levels and illuminate a chain of LEDs sequentially in a push-pull switching manner, in accordance [＃]
In this article we learn how to make a very simple circuit for buzzer using piezo electric transducer, two resistors, a small coil and a BC547 transistor. A buzzer is [＃]
This two tone siren circuit explained here gives out a continuously varying high amplitude sound. Since the supply voltage is not critical, it can be used in cars, motor3 LED Battery Level Indicator Circuit
3 LED Battery Level Indicator Circuit
The proposed 3 LED battery level indicator can be typically used for monitoring a 12 V lead acid battery charge level, through 3 distinct LED illumination. The entire circuit is [＃]
In this post we learn how to build a battery deep discharge protection circuit which can be used for protecting any type of battery from over discharge through a connected [＃]
In the following post we discuss an advanced battery charger circuit that can be used for charging a deep discharged lead acid battery in a stage wise manner. Figure 1 [＃]
In this post we discuss the main types of batteries that are widely used in today＊s world for almost all important applications, ranging from cars, automobiles mobile phones, airplanes, industries, [＃]
The following post explains how to build a simple 12 V to 19 V boost converter circuit which can used to charge a 19 V battery from a 12 V [＃]
The post explains a simple yet accurate SCR triggered battery charger circuit which can be used effectively for charging all types of battery, which includes, lead acid battery, Ni-Cd battery [＃]
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Archives for Battery Chargers
LiFePO4 Battery Charging/Discharging Specifications, Advantages Explained
LiFePO4 Battery Charging/Discharging Specifications, Advantages Explained
While Li-Ion and Lithium polymer electrolyte (LiPo) batteries possess unmatched energy density, Lithium-based batteries are costly to produce and need meticulous handling along with a cautious charging. With the advancement [＃]
This BQ7718 series 2S to 5S series Li-Ion cell charger is designed to monitor the voltage of each of the li-ion cells independently, with reference to an internally set reference [＃]
The main feature of this lambda-diode low battery indicator for Ni-Cd batteries is that, the circuit itself consumes almost zero current, until the set low threshold level is reached and [＃]
In this post we try to understand how the internal body diodes of MOSFETs could be exploited for enabling the charging of battery through the same transformer which is being [＃]
The precise battery capacity tester circuit explained in the following article can be used for testing the maximum backup capacity of any rechargeable battery in real time. By Timothy John [＃]
The post discusses a simple NiCd charger circuit with an automatic overcharge protection and a constant current charging. When it comes to correctly charging a Nickel-Cadmium cell, it is strictly [＃]
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Archives for Battery Chargers
Regulated Car Battery Charger Circuit for Garage Mechanics
Regulated Car Battery Charger Circuit for Garage Mechanics
If you are an automotive technician, vehicle technician, or a motor mechanic, you may find this cheap yet powerful car battery charger circuit extremely handy, as it can be used [＃]
These smart, intelligent battery charger will charge a Li-IOn battery rapidly by monitoring 3 crucial parameters, which are constant current, constant voltage and constant 25 degrees Celsius temperature. The post [＃]
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was [＃]
A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of [＃]
In this article we learn regarding how to design and make your own customized high current wireless battery charger circuit using wireless power transfer concept. Introduction In many of my [＃]
This universal automatic battery charger circuit is extremely versatile with its functioning and can be adapted for all types of battery charging and even for solar charge controller application. Universal [＃]
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Archives for Battery Chargers
Arduino Battery Level Indicator Circuit
Arduino Battery Level Indicator Circuit
In this post, we are going to construct an Arduino based
In this post, we are going to construct a over discharge protection circuit for 12v battery using Arduino 
This little circuit will alert the user regarding a battery reaching its full-charge level (over charge) while it＊s being charged, by illuminating an LED. The circuit uses just a couple [＃]
The post discusses a two opamp IC 741 and LM358 based auto cut off battery charger circuits which are not only accurate with its features but also allows a hassle [＃]
In this post we learn how to build and use a 18V battery charger circuit for a cordless drill machine. The idea was requested by Mr. Chibuzo. Technical Specifications Here [＃]
The post explains how to set or adjust an opamp 741 IC based battery charger circuit for implementing an automatic cut-off for the connected battery once it reaches the full-charge [＃]
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Archives for Battery Chargers
Battery Bank Charger Circuit
Battery Bank Charger Circuit
The post narrates an automatic Battery Bank charger circuit with an automatic over charge cut-off feature for operating with an electric car. The idea was requested by Mr. George. Circuit [＃]
The post explains a battery charger circuit specifically designed for camper and motorhome applications, so it can serve as an effective camper/motorhome battery charger circuit operating through any shore power [＃]
The post explains a battery backup time indicator circuit for monitoring the battery power usage by the connected load and for estimating the approximate remaining backup time of the battery. [＃]
A triac based battery charger replaces a normal relay for automatically cutting off power to the battery very efficiently. The post explains a simple a battery charger circuit using a [＃]
In this discussion we try to learn the right procedure for selecting a charger for a Li-ion battery. The question was raised by Mr. Akshay. Li-Ion Charger Related Question I [＃]
The post details a simple automatic High Voltage Battery Charger Circuit which can be used for an automatic charging control of any preferred high voltage battery bank such as a [＃]
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Battery Health Checker Circuit for Testing Battery Condition and Backup
Battery Health Checker Circuit for Testing Battery Condition and Backup
The article discusses a simple battery health checker circuit which uses ordinary components for enabling the user to get an instant reading of the battery efficiency or regarding its effective [＃]
The article presents a 4 assorted power bank circuits using 1.5V cell and 3.7V Li-ion cell which can be built by any individual for their personal emergency cellphone charging functionality. [＃]
In this article we learn to make a simple 12v LED backpack power supply circuit for powering a 36watt LED lamp, which includes appropriately wired integrated sockets for enabling the [＃]
The post discusses a relatively easy lipo battery balance charger circuit which is designed to continuously scan and charge the connected cells of the battery. The idea was requested by [＃]
I have designed and published a variety of battery charger circuits in this website, however the readers often get confused while selecting the right battery charger circuit for their individual [＃]
This simple, enhanced, 5V zero drop PWM solar battery charger circuit can be used in conjunction with any solar panel for charging cellphones or cell phone batteries in multiple numbers [＃]
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High Current Li-Ion Battery Charger Circuit
High Current Li-Ion Battery Charger Circuit
The post explains a high current Li-Ion battery charger circuit which can be used for charging any high current, such as 2S3P, 3S2P battery packs. It can be also used [＃]
The article explains a battery status indicator circuit which can be also used as a battery charging fault indicator circuit. The idea was requested by Mr. Faizan. The Design The [＃]
The post presents a simple circuit that may be used for charging a cellphone battery with a laptop battery. The idea was requested by Mr. Gyashuddin. Recharging Cellphone Battery with [＃]
The post discusses a simple car laptop charger circuit for charging laptops from a 12V car battery using a IC 555 based boost converter. The idea was requested by one [＃]
The post explains a super capacitor charger circuit for charging super capacitors which converts a 12V car battery voltage to an elevated 16V for charging a bank of super capacitors. [＃]
The post discusses a simple IC 555 based self optimizing solar battery charger circuit with buck converter circuit that automatically sets and adjusts the charging voltage in response to the [＃]
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Archives for Battery Chargers
Lithium Polymer (Lipo) Battery Charger Circuit
Lithium Polymer (Lipo) Battery Charger Circuit
The post explains a simple lithium polymer (Lipo )battery with over charge cut off feature. The idea was requested by Mr. Arun Prashan. Charging
The post presents an 6v or 12v battery charger circuit for positive earth cars which could be used for upgrading 6V positive earth cars, facilitating an external 12V battery to [＃]
In this post we learn two methods of connecting batteries in parallel. The first one below deals with changeover circuit using SPDT switches to charge multiple batteries individually or collectively. [＃]
The post discusses a 48V solar battery charger circuit with high, low cut-off feature. The thresholds are adjustable through individual presets. The idea was requested by Mr. Deepak. Technical Specifications [＃]
A fast battery charger circuit charges a battery with enhanced speed so that it is charged in less time than the specified period. This is usually done through a step [＃]
In this article we study a simple flyback based converter design which is implemented as an SMPS 12V, 5amp battery charger power supply, without using a iron core transformer. How [＃]
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Archives for Battery Chargers
USB 3.7V Li-Ion Battery Charger Circuit
USB 3.7V Li-Ion Battery Charger Circuit
In this article we study a simple computer USB 3.7V li-ion battery charger circuit with auto-cut off, current control features. How it Works The circuit can be understood with the [＃]
The post explains a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The [＃]
The post explores an innovative automatic dual battery charger with isolator circuit for alternators and engines, which allows monitoring of the charge levels of two individual batteries, and switching them [＃]
An all-in-one automatic voltage battery charger circuit is discussed in the following post; the circuit can be modified in many different ways as per individual requirements and applications. The following [＃]
The article explains a simple solar boost charger with LED driver circuit which also includes a single push dimmable feature. The idea was requested by Mr. Ashutosh. Technical Specifications Hi [＃]
The article discusses a simple low dropout LDO, or zero drop solar charger circuit without microcontroller which can be modified in many different ways as per user preference. The circuit [＃]
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Convert SMPS into a Solar Charger
Convert SMPS into a Solar Charger
The post explains how to convert smps into a solar charger circuit. The method will result in an extremely efficient and fast solar charging of the connected battery. SMPS Solar [＃]
The post explains a circuit
The following post explains through calculations how to select and interface the solar panel, inverter and charger controller combinations correctly, for acquiring the most optimal results from the set up. [＃]
The following post describes a simple low battery indicator circuit by using just two inexpensive NPN transistors. The main feature of this circuit is its very low stand by current [＃]
In this post we learn how to recharge and use bad, defective discarded batteries using an innovative battery charging process invented by John Bedini. Lead acid batteries can sometimes be [＃]
The proposed solar water heater with battery charger controller circuit explains a simple method of utilizing the excess solar energy from a solar panel for heating water in water tanks [＃]
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4 Simple Li-Ion Battery Charger Circuits 每 Using LM317, NE555, LM324
4 Simple Li-Ion Battery Charger Circuits 每 Using LM317, NE555, LM324
The following post explains a four simple yet a safe way of charging a Li-ion battery using ordinary ICs like LM317 and NE555 which can be easily constructed at home [＃]
The post explains how to build an innovative inverter circuit with a single transformer that works both as an inverter and a battery charger transformer, Let＊s learn the details from [＃]
This circuit is capable of providing as high as 25 Amps of current at any specified voltage between 1.25 V to 
Nowadays probably all of us have a spare cell phone charger lying idle in our cupboards or table drawers＃＃so wouldn＊t it be a great idea if we could employ
In this post
The3 Step Automatic Battery Charger/Controller Circuit
3 Step Automatic Battery Charger/Controller Circuit
Generally
I have posted many battery charger circuits in this site, some are easy to build but less efficient, while some are too sophisticated involving complex construction steps. The one posted [＃]
The proposed 48 V
The included battery charger circuit was designed and built by Mr.Vinod Chandran, however there＊s some issues and problems
The following 5 versions of 6 volt 4 AH battery charger circuits has been designed by me and posted here in response to the request from Mr. Raja, let＊s learn [＃]
My friend Steven hasBattery Cut Off Charger Circuit Using a Single Relay
Battery Cut Off Charger Circuit Using a Single Relay
Amazed to hear this! Yep that＊s actually possible, you would need only one relay and a handful of diodes to make a simplest one relay automatic battery charger circuit. How [＃]
In this article we investigate 2 simple yet powerful battery desulfator circuits, which can be used to effectively to remove and prevent desulfation in lead acid batteries. The first method [＃]
A DC cell phone or mobile phone charger is a device which charges a cellphone from an available DC supply source. The device converts the unregulated DC source into a [＃]
In this article we will be discussing a list of simple 12V battery charger circuits which are very easy and cheap by its design yet extremely accurate with its output [＃]
A single state-of-the-art chip, a transistor and a few other inexpensive passive components are the only materials required for making this outstanding, self regulating, over charge controlled, automatic NiMH battery [＃]
Charging batteries through inductive wireless charging is one of the applications that＊s becoming very popular and getting appreciated by the uses. Here we＊ll study how to make a wireless Li-Ion [＃]
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Archives for Battery Chargers
One Transistor Automatic Battery Charger Circuit
One Transistor Automatic Battery Charger Circuit
This one transistor cheap battery charger circuit is designed to automatically switch OFF the supply to the battery as soon as the battery has reached its full charge level. A [＃]
The post explains how a neat little self regulating automatic battery charger circuit can be made using just two inexpensive transistors. This circuit will automatically regulate the charging supply to [＃]
The lead acid battery charger circuits explained in this article can be used for charging all types of lead acid batteries at a specified rate. This article explains a few [＃]
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Archives for Car and Motorcycle
Police/Ambulance Siren Circuit with Rotating Beacon Light
Police/Ambulance Siren Circuit with Rotating Beacon Light
In this post we are going to learn how to construct a police, ambulance or a fire truck siren circuit using evergreen IC 555 timer and we will also learn [＃]
In this post we are going to learn how to construct a vehicle counter circuit that can count the number of vehicles entered in a parking lot at office building, [＃]
In this post we will learn how to build a simple yet foolproof infrared based remote control, which can be used for locking and unlocking any vehicle door through a [＃]
This simple automotive electrical fault finder probe circuit will enable you to solve most electrical troubleshooting in your cars, tempos, motorcycles etc with a lot of ease and in a [＃]
The post explains a simple method of converting a wasted spark type ignition system in an automobile, into an enhanced, sequential spark, 6 cylinder engine type ignition system. The idea [＃]
These useful lightweight, cheap, analogue tachometer circuits are developed for facilitating car or auto servicing mechanics for precisely adjusting a car ignition system RPM to get maximum efficiency from it. [＃]
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Archives for Car and Motorcycle
3-Pin Solid-State Car Turn Indicator Flasher Circuit 每 Transistorized
3-Pin Solid-State Car Turn Indicator Flasher Circuit 每 Transistorized
Although, most of the car electronics have evolved into solid-sate versions, a turn indicator flasher unit is one device which still depend on a relay based design in many of [＃]
The 4 simple car voltage current regulator circuits explained below is created as a immediate alternative to any standard regulator and, although developed principally for a dynamo it will function [＃]
In cars or automobiles, LEDs have grown to be the preferred choice of lighting. Whether it＊s the rear tail-lights or the tell-tale indicators in the cluster as indicated in Figure [＃]
The circuit explained here is basically a warning signal generator designed largely for automobile application. It triggers a warning signal in a situation when the turn indicator switch is not [＃]
Devices that react to variations in atmosphere or fluid heat are simple to construct due to the easy availability of thermistors. This car ice warning circuit explains how to implement [＃]
An electronic device or circuit which detects and indicates the various fuel levels in a fuel tank without a physical contact, through ultrasonic waves, is called an ultrasonic fuel level [＃]
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Archives for Car and Motorcycle
Motorcycle Button Start Locking Circuit
Motorcycle Button Start Locking Circuit
In this post we discuss how to modify an existing button start system in motorcycles so that it＊s disabled as soon as the engine has started and gained the required [＃]
The post explains an easy method of upgrading your existing car fog lamp switch such that it allows toggling both the fog lamp as well as the DRL lamps alternately, [＃]
In this post we are going to construct a GSM based car security system using Arduino, which can lock and unlock car＊s ignition system and central lock by sending a [＃]
In this post we are going to construct a car reverse parking sensor alarm circuit using arduino, ultrasonic sensor and 2.4 GHz transceiver module. This project can be add-on feature [＃]
The article explains a simple car tank water sensor alarm circuit using IC 555 and a pulsating signal on the sensing probes to pevent corrosion on the probes. The idea [＃]
The article provides a detailed explanation regarding the various voltage regulator wiring configurations used in motorcycles. The article was submitted by Mr. Abu-Hafss. Technical Specifications After working on different voltage [＃]
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Archives for Car and Motorcycle
10 LED Tachometer Circuit
10 LED Tachometer Circuit
The post explains how an accurate 10 LED tachometer circuit can be built using ordinary parts like IC 555 and IC LM3915. The idea was requested by Mr. Munsif. What [＃]
This circuit will allow the user to lock his car ignition using his phone Bluetooth, meaning the ignition can be locked/unlocked only through a specific code from the user＊s cellphone [＃]
In this post we learn how to make an useful motorcycle accident alarm circuit for sending alarm signal to the distant population in an event of an accident, especially if [＃]
The post explains an innovative brake light circuit using speed detection of the vehicle which could be a motorcycle. The circuit implements an advanced brake light switch ON ensuring a [＃]
The post explains an over voltage cut-off protection circuit in the form of automotive dump load for protecting sensitive and sophisticated modern automotive electronics from transient DC electrical spikes emanating [＃]
The circuit presented here is for a DC-CDI which are used in motorcycles. A DC-CDI is the one in which the high voltage (200-400VDC) is converted from 12V supply voltage. [＃]
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Archives for Car and Motorcycle
Darkness Triggered Car Safety Park Light Circuit
Darkness Triggered Car Safety Park Light Circuit
In this post we discuss a circuit concept for enabling cars with an add-on automatic safety park light which triggers during night and signals the position of the car and [＃]
The article discusses a simple circuit for enabling the turn signal lamp of any car to carry out a two-way function of DRL lights as well as well the stipulated [＃]
The article presents a simple electric scooter circuit design which can be also modified to make an electric auto-rickshaw. The idea was requested by Mr. Steve. The Circuit
The circuit presented here is a tester circuit for testing CDIs for motorcycles and three-wheelers. 
The motorcycle regulator, rectifier tester circuit presented here can be used to test a 6-wire shunt type regulator-rectifiers for a 3-phase charging system of motorcycles. These reg./rectifiers (RR-units) are usually [＃]
In this post we learn about a 5 simple siren circuits, using Arduino and also with ordinary components such as transistors and capacitors yet is able to produce an alarm [＃]
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Archives for Car and Motorcycle
Adding a PWM Multi-spark to Automobile Ignition Circuit
Adding a PWM Multi-spark to Automobile Ignition Circuit
The post investigates a simple 2 pin oscillator circuit which may be inserted between the pickup coil and the CDI unit of a vehicle for achieving an induced multi trigger [＃]
In this post we＊ll learn about a simple circuit which allows a manual adjust feature for the spark timing of a motorcycle＊s CDI either to achieve an advance ignition, retarded [＃]
In this post we＊ll try to investigate the making of HHO gas in automobiles for enhancing their mileage by approximately 50% or more, that means a reduction of petrol or [＃]
The post explains a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. [＃]
The post explains how to make and replace existing bulb type brake lights in vehicles with high efficiency LED lamps.The idea was requested by Mr. Awan. Technical Specifications I would [＃]
The post explains a simple circuit which can be used for producing a slow fading light effect each time it＊s switched OFF. The application can be typically used in car [＃]
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Archives for Car and Motorcycle
Infrared Remote Control Safe Lock Circuit
Infrared Remote Control Safe Lock Circuit
A simple, cheap yet highly effective infrared remote control safe lock circuit can be studied in the following post. Using IC LM567 The LM567 IC is one of my favorites [＃]
A simple flashing bicycle safety light circuit has been discussed in the following article In many occasions when we happen to go down the road at night, it is normal [＃]
The post discusses a simple automatic ignition for an oil burner system system which is initiated with a push button operation. The idea was requested by Mr. Andreas. Technical Specifications [＃]
The article discusses a model locomotive controller circuit using uniquely set IR beams for different locomotives allowing unique identification signals and controls for the engines. The idea was requested by [＃]
The post discusses a list of PWM controlled simple 3 phase motorcycle voltage regulator circuit which may be used for controlling the battery charging voltage in most two wheeler. The [＃]
In this part of the article we learn about an innovative method of converting pedal press mechanism in electric vehicles into a correspondingly varying electrical signal, which may be further [＃]
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Archives for Car and Motorcycle
Wireless Helmet Mounted Brake Light Circuit
Wireless Helmet Mounted Brake Light Circuit
The post explains an innovative wireless LED brake light circuit which can be attached to a biker＊s helmet. The LEDs attached with the helmet circuit illuminates in response to the [＃]
The article discusses a car side marker modification which enables it to respond to the existing turn signal pulses and flash in tandem with the turn signal flashing. The idea [＃]
The article explains a car power window controller circuit using a single push button or a couple of push buttons. The idea was requested by Mr. Win. Technical Specifications I＊m [＃]
The post presents a simple cellphone triggered remote control circuit that can be applied as a cellphone operated remote car starter. The unit would cost less than $20 to build. [＃]
The post presents an 6v or 12v battery charger circuit for positive earth cars which could be used for upgrading 6V positive earth cars, facilitating an external 12V battery to [＃]
The following article presents a circuit design which would mute your car amplifier music the moment it detects a cellphone call inside the car, enabling an automatic muting during the [＃]
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Archives for Car and Motorcycle
Modifying Car Turn Signal Lights, Park-Lights and Side-Marker Lights
Modifying Car Turn Signal Lights, Park-Lights and Side-Marker Lights
The post explains an innovative circuit modification which allows a single common lamp to be used as a parking light, turn signal indicator light, as well as a side marker [＃]
In this article we learn a simple circuit idea which can be applied in order to convert existing car park lights into advanced, smart DRL system. The idea was requested [＃]
The post explains a simple low/normal battery voltage status indicator circuit through a flashing and a constant LED, where the flashing LED indicates a normal status while the solid indicator [＃]
The proposed circuit is very useful which warns the car driver before hand once the radiator gets heated up above the preset level. How it Works The working of this [＃]
The post explains a simple automatic darkness activated switch for car head lamps and the DRLs, initiated by the ignition triggers. The circuit helps to save battery power and prevents [＃]
Typically all car turn signal lamps are around 12 to 20 watt rated which are traditionally incandescent bulb types and produce much lower light intensities compared to LED lights. Here [＃]
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Archives for Car and Motorcycle
How to Connect Car LED Downlight
How to Connect Car LED Downlight
A car LED downlight available in the market can be easily integrated to an existing car battery if its rating is identical to the battery＊s voltage rating. Let＊s learn more [＃]
The post discusses and tries to solve a common car door opening issue which may be seen in quite a few old model cars. The proposed circuit of a car [＃]
The O.E.M. turn signal flashing units installed in automobiles have two 
In our previous articles we have learned comprehensively regarding the ICs LM2907/LM2917 which are fundamentally frequency to voltage converter ICs, and are ideally applicable in all such relevant fields. Here [＃]
Here we＊ll see how a simple yet accurate analogue speedometer circuit can be constructed at home using just a single IC and a few external passive components. The speedometer can [＃]
The post explains an enhanced multi-spark CDI circuit which is universally suited for all types of automobiles. The unit can be built at home and installed in a particular vehicle [＃]
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Archives for Car and Motorcycle
Bicycle Dynamo Battery Charger Circuit
Bicycle Dynamo Battery Charger Circuit
The post explains a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The [＃]
The post explains a simple 21 watt LED lamp circuit module which can be used as a direct replacement for a standard halogen lamp used in motorcycles headlamp. LED vs [＃]
A simple motorcycle battery over discharge protector circuit is explained in the following post. The circuit will prevent the battery from over-discharging by the motorcycle headlamp whenever the mo-bike alternator [＃]
The proposed bike flasher flashes two white LEDs from a single 1.5V cell by using a solitary general purpose transistor, and does not need core for the involved transformer, the [＃]
The following post describes a simple circuit idea which can be used for generating free electrical energy for illuminating a few safety flashing LEDs on a 
The following post describes a simple yet useful car speed limit warning indicator circuit which can be used in vehicles for getting an instant indication of a possible over speed [＃]
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Archives for Car and Motorcycle
Make this Car Air Ionizer Circuit
Make this Car Air Ionizer Circuit
The post discusses the construction of a car air
The proposed circuit of a modified car head lamp fader, ※breather§ circuit generates a slow flashing effect over the head lamps
The post discusses an automotive/car turn signal indicator circuit idea with a built-in load malfunction indicator, meaning an
The article illustrates a simple yet innovative, fancy car turn signal light circuit which produces a rising bar graph sequence effect when switched ON. The circuit idea was requested by [＃]
DRL or Day Time Running Lights are a chain of bright lights mostly LEDs installed just under a vehicle＊s headlight, which illuminate automatically during day time to ensure that others [＃]
The following post describes a simple yet enhanced 12V capacitive discharge ignition system which derives its operating voltage from the battery instead of the alternator for generating the igniting sparks. [＃]
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Archives for Car and Motorcycle
LED Tail Ring Light Circuit for your Car
LED Tail Ring Light Circuit for your Car
The following article describes a fancy LED sequencing/diverging ring light circuit which can be used as a tail brake light 
We all are pretty familiar with the 78XX voltage regulator ICs or the adjustable types such as LM317, LM338 etc. Though these regulators are outstanding with their specified functioning and [＃]
The following post of a full wave motorcycle shunt regulator circuit was requested by Mr.Michael. Let＊s learn 
The following circuit was requested by one of the readers of this blog Mr. Keval. The actual request was for a
In this post we learn about a car voltage stabilizer circuit which could be made and installed in all cars for ensuring a perfectly controlled and stabilized supply for the [＃]
This circuit will give call back alerts in the form of blank calls on your cell phone whenever it senses a break in or intrusion inside the particular restricted area [＃]
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Archives for Car and Motorcycle
Simple Electronic Fuse Circuit
Simple Electronic Fuse Circuit
In this article we investigate a electronic circuit design which works like a conventional fuse for safeguarding any electrical system from overloads, over-current, short circuit and related fire hazards. However, [＃]
A simple car shock alarm circuit presented in this article can eb effectively used to alarm the owner each time the car comes across some kind of vibrational intrusion ether [＃]
To set up an auto electrical manufacturing unit, it＊s important to have a thorough knowledge regarding the various technicalities associated with the field. The article makes a comprehensive approach and [＃]
This extremely simple code lock switch circuit can be used for locking a vehicle＊s ignition by typing a hidden code over the given micro switch keypads. So now you can [＃]
The circuit explained here is presented in response to a request sent by one of the avid readers of this blog. The proposed circuit is of a sequential LED light [＃]
In this post we discuss the circuit for a simple, universal capacitive discharge ignition circuit or a CDI circuit using a standard ignition coil and a solid state SCR based [＃]
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Archives for Car and Motorcycle
Simple Car Burglar Alarm Circuit
Simple Car Burglar Alarm Circuit
Learn how to build a simple car burglar alarm circuit right in your home. The circuit is built around a few trivial components and yet proves to be totally fool [＃]
A simple construction procedure of a motorcycle electronic 2 pin turn signal indicator with beeper circuit has been thoroughly explained in this article. Normally, the electro-mechanical types of turn signal [＃]
This super simple circuit design of a gsm car security system really works.Don＊t believe it? Find out and learn the simple method of constructing it. How would you feel if [＃]
A bicycle horn is normally used in bicycles for generating an amplified alarm sound with a press of a button for alerting anybody getting on the path of the running [＃]
In this post we see how to build an enhanced and efficient car headlight lamp using Pirhana LEDs. A car LED headlight is a powerful lamp built using high efficiency [＃]
If you own a car and still haven＊t incorporated any security system in it or perhaps your old security system is out of order, you can quickly opt for a [＃]
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Archives for Car and Motorcycle
Automatic Vehicle Headlight Dipper/Dimmer Circuit
Automatic Vehicle Headlight Dipper/Dimmer Circuit
The circuit50 Amp Transistor MJ11032, MJ11033 Datasheet, Pinout
50 Amp Transistor MJ11032, MJ11033 Datasheet, Pinout
If you are looking for high current transistors in the range of 50 amps with a complementary pair, then you can try these Darlington transistors MJ11032 and MJ11033. The MJ11032 [＃]
You may have heard a lot about the outstanding features of the IC LM3524 or the SG3524, however many of you may not be confident regarding how to set up [＃]
The post explains a simple way to enhance the the XL4015 DC to DC buck converter with an adjustable current limiter, which seems to be missing in the original module. [＃]
In this post we will learn the main electrical features, pinout specifications, datasheet, and application circuit of the IC 723. The IC 723 is a general purpose, extremely versatile voltage [＃]
As the name suggests an LDR or Light Dependent Resistor is a kind of resistor that exhibit a wide range of resistance values depending on the intensity of light incident [＃]
A triac can be compared to a latching relay. It will instantly switch ON and close as soon as it＊s triggered, and will remain closed as long as the supply [＃]
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Archives for Datasheets
Comparator Datasheet Parameters
Comparator Datasheet Parameters
This post will help you to understand a few of the crucial comparator parameters or specifications which are generally found in comparator IC datasheets. Some of the major parameters that [＃]
The IC TL494 is a versatile PWM control IC, which can be applied in many different ways in electronic circuits. In this articles we discuss in detail regarding the main [＃]
In this post we study the datasheet, pinout, and technical specifications of the IC LMC555 which is a CMOS version of the standard IC 555. The IC is equipped with [＃]
The 2N3055 is a power bipolar transistor designed to handle high power loads in the range of 100 V, and 15 amps. In this post we comprehensively discuss the pinout [＃]
If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we [＃]
Zener diodes that are normally available are mostly 1/4 watt or 1/2 watt types. And it is quite valid since the basic function of zener is to create stabilized reference [＃]
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Archives for Datasheets
PIR Sensor Datasheet, Pinout Specifications, Working
PIR Sensor Datasheet, Pinout Specifications, Working
In this post we are going to explore the datasheet of PIR or Pyroelectric Infrared Radial Sensor HC-SR501. We will understand for what purpose PIR sensor is used? Its basic [＃]
In this post we are going to take a look at the popular LM 324 IC. We will be looking at the pin configuration, its important features and its technical [＃]
In this article we will try to understand the main specifications and datasheet of the Li-Ion cell 18650 2600 mAh, which is one of the most popular Li-ion batteries, and [＃]
In this post we investigate the datasheet and technical specifications of a 400V, 40A (ampere) power Darlington transistor MJ10022 and MJ10023, and also learn the main features of the device. [＃]
In this post we discuss the datasheet, and the pinout specification of the IC
In this post we investigate the technical specifications and pinout details of the IC L293 which is a versatile quad half-H driver IC, and can be used for implementing many [＃]
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Archives for Datasheets
LM35 Pinout, Datasheet, Application Circuit
LM35 Pinout, Datasheet, Application Circuit
The post explains how to make an LM35 application circuit by understanding its datasheet, pinouts and other technical specifications. By: SS kopparthy LM35 Main Specifications The IC LM35 is a [＃]
The write up explains the pinout and working details of the LCD module ※Arduino LCD KeyPad Shield (SKU: DFR0009)§ which is specifically manufactured for offering a quick plug-in compatibility for [＃]
The IC LM321 is the single op amp version of LM324 which is a quad op amp IC and carries 4 of these ICs in one package. Therefore for applications [＃]
The ZSD100 is an alarm frequency generator IC which incorporates a frequency swept alarm signal generator designed solely for fixed and vehicle protection alarm systems. Circuit Operation For acquiring the [＃]
MJ11021(PNP) MJ11022 (NPN) are high voltage complementary pair Darlington transistors suitable for all applications that involve high voltage high current such as in motor control, inverters, etc. Let＊s understand the [＃]
The IC 4040 is technically a 12-stage binary ripple counter chip, in simple words a device which will produce a calculated delayed frequency output in response to every pulse applied [＃]
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Archives for Datasheets
TSOP1738 Infrared Sensor IC Datasheet, Pinout, Working
TSOP1738 Infrared Sensor IC Datasheet, Pinout, Working
The TSOP17XX series of ICs are infrared sensor devices designed for sensing infrared frequencies only with a specific range of modulated frequency, and interpreting them into a proportionate magnitude of [＃]
The TIP150, TIP151, TIP152 series are high voltage, high current Darlington transistors which can be used for applications involving voltages at mains 120V or 220V levels. The datasheet and other [＃]
Here we learn the main features, specifications and datasheet of the IC 4033 through a detailed technical analysis. How IC 4033 Works The IC 4033 is another Johnson decade counter/decoder [＃]
The IC 4047 is one of those devices which promises an unlimited range of circuit application solutions. The IC is so versatile that on many occasions it easily outsmarts it＊s [＃]
The post details the datasheet, specifications, pinout configurations and a few application circuit for the IC IRS2153 which is a half-bridge IC from Texas Instruments. The unique feature of this [＃]
The post explains the main specs and pinouts of a small signal, low power N-channel mosfet 2N7000G. Mosfets vs BJTs When we talk of mosfets we normally associate it with [＃]
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Archives for Datasheets
High Current MOSFET IRFP2907 Datasheet
High Current MOSFET IRFP2907 Datasheet
The post explains the main features datasheet of high current N-Channel mosfet IRFP2907 which is rated to handle up to a staggering 209 amps of continuous current at a reasonably [＃]
The following post
The XLamp XM-LED can be
The post
The post discuses the main specifications, datasheet and working principle of the IC LM567, which is a precise phase-locked loop with synchronous AM lock detection and power output device. In [＃]
The article relates us with the important features and specifications of MJE13005 device, which is a high voltage, high speed transistor, applicable for manyIRF540N MOSFET Pinout, Datasheet, Application Explained
IRF540N MOSFET Pinout, Datasheet, Application Explained
The IRF540N is an advanced HEXFET N-channel power mosfet, from International Rectifier. The device is extremely versatile with its current, voltage switching capabilities, and thus becomes ideal for numerous electronic [＃]
In this post we learn how a shunt regulator IC works typically in SMPS circuits. We take the example of the popular TL431 device and try to understand its use [＃]
Triacs are one of the most important active electronic components which are exclusively used for power switching applications, these devices are especially suited to AC mains loads, and are able [＃]
If you are looking for a power transistor able to support high current upto 25 amps and yet not incorporate the traditional cumbersome TO-3 package, then the TIP36 would
The following article explains the main technical features and specifications of
In this post we learn the datasheet of the ICBEL188 Transistor 每 Specification and Datasheet
BEL188 Transistor 每 Specification and Datasheet
The transistor 188 is one of my favorites, simply because even being so tiny it＊s able to handle currents as high as 1 Amp. Understanding BEL188 Transistor Specification/Datasheet The transistor [＃]
This article explains the main specifications, pinouts and application related information regarding the transistor NPN BJT 2N2222, 2N2222A, and also its complimentary PNP pair 2N2907 BJT Introduction In one of [＃]
If you are wondering how to correctly use white LEDs in circuits so that they can be illuminated safely without damaging, then this post might help you to evaluate the [＃]
The post details the main specifications and pinout functions of the IC CS209A along with other technical aspecst of the chip. Introduction The device CS209A is a bipolar monolithic IC [＃]
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Archives for Decorative Lighting (Diwali, Christmas)
RGB Light Strip Controller Circuits
RGB Light Strip Controller Circuits
In this post we are going to see how we can construct an RGB LED light strip controller circuit for PC cabinets and also for general decoration purposes. In this [＃]
In this RGB spotlight mixer circuit project, 3 individual spot lights are used, having red, green and blue focus light bulbs in them. The lights can be focused on walls, [＃]
The circuits presented in the following article could be used for generating strobed lighting effect over 4 Xenon tubes in a sequential manner. The proposed sequential xenon lighting effect could [＃]
A very interesting musical Christmas decoration light circuit can be built using a single IC, and some other few passive components, let＊s learn the details as furnished below. By: Ritu [＃]
The post explains how to make a chasing ※WELCOME§ display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display [＃]
In this post we learn how to make a simple IC 555 based alternate relay timer circuit for toggling a couple of loads alternately with a specified length of delay, [＃]
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Archives for Decorative Lighting (Diwali, Christmas)
Fish Aquarium Oxygen Generator Circuit
Fish Aquarium Oxygen Generator Circuit
In this article we discuss how to make a simple fish aquarium oxygen generator circuit using the concept of electrolysis of water. Generating Pure Oxygen The production of oxygen through [＃]
A simple mains operated, transformerless 8 function Christmas light circuit can be made by using a single IC, a rotary switch and a few SCRs, let＊s learn the procedures in [＃]
This is a mains operated transformerless flasher circuit that can be used for alternately switching a couple of CFL or similar 220V/120V lamp to produce a decorative lighting effect. Circuit [＃]
The
This Arduino RGB sequential light generator circuit will generate a smooth flowing red, green blue pattern over the connected RGB LED. The LED used here is a four pin 30mA [＃]
In this design a solenoid is operated using an IR remote control, which in turn toggles the fish feeder mechanism. In this article we learn how to make a simple [＃]
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Archives for Decorative Lighting (Diwali, Christmas)
Subwoofer Music Level Indicator Circuit
Subwoofer Music Level Indicator Circuit
The post discusses a
The post discuses a sequentially advancing 25 LED timer circuit which may be initiated
In this post we learn how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a [＃]
The post explains a 3 beautiful fish aquarium light optimizer circuits your fishes will love.These are designed to automatically control the illumination of a group of appropriately selected LEDs with [＃]
The post explains an aquarium feeder timer circuit which sustains a set of continuous operations as per a predetermined timing sequence through the respective pot controls. The idea was requested [＃]
The post explains a circuit that will switch off a group of lamps in sequence with a predetermined delay rate, as set by the user through a built in pot. [＃]
Archives for Decorative Lighting (Diwali, Christmas)
Fishing YoYo Stop-Motion Switch Circuit with Indicator
Fishing YoYo Stop-Motion Switch Circuit with Indicator
The post discusses a stop-motion switch circuit or a strike indicator for aiding fishing yo yo applications. The idea was requested by Mr. Mike. Technical Specifications (kindly bear the long [＃]
The post explains how to transform your ordinary trousers into a chasing LED lit trousers which produces an shooting LED light chasing effect in response to your footstep movement or
The post explains a simple, compact, 220V, 120V transformerless light chaser circuit which can be used for illuminating 220 V mains operated lamps or bulbs in a sequential chasing manner. [＃]
The article discusses the construction of 9 interesting LED chaser circuits, which not only create beautiful running light effect but are also easy to build. We also discuss how to [＃]
DRL or Day Time Running Lights are a chain of bright lights mostly LEDs installed just under a vehicle＊s headlight, which illuminate automatically during day time to ensure that others [＃]
The following article explains a simple circuit which can be used for alternately switching LEDs with gradual brightening and fading effects. Circuit Operation The circuit can be effectively used for [＃]
Archives for Decorative Lighting (Diwali, Christmas)
Mains AC Xenon Tube Flasher Circuit
Mains AC Xenon Tube Flasher Circuit
The article discusses a very simple yet amusing mains operated xenon tube flasher circuit using ordinary electronic components. Circuit Operation The circuit was taken from one of the old elektor [＃]
The following triac/diac based mains operated LED flasher circuit which is actually an astable multivibrator circuit utilizes only a diac and resistor arrangement for implementing interesting wig wag flashing of [＃]
The post details a simple method for making an inexpensive LED name plate with illuminated back light, which can be made by incorporating only 4 LEDs and yet acquire a [＃]
If you feel strobe lights very interesting but are disappointed by the fact that these wonderful light effects can be produced only through complex xenon tube then probably you are [＃]
In this post we present two circuit ideas for creating Christmas tree decoration. The first idea explains a PCB mounted LED Christmas tree which blinks many LEDs in glittering manner [＃]
The proposed electronic candle circuit230 Volts Bulb String Light Circuit for Diwali and Christmas
230 Volts Bulb String Light Circuit for Diwali and Christmas
The article describes how to wire tiny 12 volt flashlight bulbs into decorative string light for decorating houses during festivals like Diwali and Christmas. What are String Lights As the [＃]
Looking for a simple LED project? Learn how easy it is to build a LED wig wag string light flasher using just a couple of transistors and few other passive [＃]
It is possibly the smallest 12 V LED flasher to date, which is able to flash an LED ON/OFF infinitely using a single transistor, a resistor, and a capacitor. Can [＃]
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RGB Light Strip Controller Circuits
RGB Light Strip Controller Circuits
In this post we are going to see how we can construct an RGB LED light strip controller circuit for PC cabinets and also for general decoration purposes. In this [＃]
This circuit can be used like a tree ornament, however the LED star circuit explained here has a variation; it＊s completely electronic and it provides the impression of an exploding [＃]
In this post we will learn how to build a few interesting LED circuits, and also learn how to connect LEDs correctly in a circuit. LED stands for Light Emitting [＃]
In this post we learn how to make simple yet fascinating cube light circuits, in which LEDs are connected inside a plastic cube to produce interesting illuminating effects. All the [＃]
Nowadays the CFL and fluorescent lamps are almost completely replaced with LED lamps, which are mostly in the form of circular or square shaped flat ceiling mounted LED lamps. These [＃]
This LED light bar with dimmable feature will allow the user to adjust the brightness of the lamp in 4 steps, with100%, 50%, 10% and 0% illumination control at each [＃]
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Rotating LED Chakra Circuit for God Idols
Rotating LED Chakra Circuit for God Idols
LED Chakra is an ornamental lighting system which depicts or imitates a rotating wheel like appearance, by means of sequentially shifting Illuminated LED arrays. Indian subcontinent is a land of [＃]
Obstruction lights are warning lights that we see at the top of tall structures like towers and skyscrapers, installed for indicating the aircrafts and other flying objects about these obstructions. [＃]
A wireless music level indicator is an electronic device built for sensing the varying levels of a music signal and convert it into corresponding levels of illumination over an LED [＃]
A joule thief circuit is basically an efficient, self-oscillating voltage booster circuit, built using a single transistor, resistor and an inductor, which can boost voltages as low as 0.4 V [＃]
In this post we learn how to build a homemade LED driver with dimmer and charger circuit for illuminating a 3D moon from a 5V USB source. The idea was [＃]
The post details the construction of a 200 to 600 LED project, using series parallel 7 Watt LED Driver SMPS Circuit 每 Current Controlled
7 Watt LED Driver SMPS Circuit 每 Current Controlled
The presented 7 watt LED driver circuit is an SMPS based non-isolated, transformerless circuit which ensures a safe current controlled output for the attached LED, it is very affordable to [＃]
LED lighting products are relatively new for the commercial market and as with any new product, they have to deal with doubt and negative comments from consumers＊ side. There just [＃]
In this post we are going to construct LED strip controller circuit using Arduino, which can turn ON/OFF and decrease/increase brightness of LEDs using ordinary IR (Infrared) remote. What is [＃]
The post explains a simple foot activated staircase light circuit comprising of a chain of LEDs which activate sequentially in response to each climbed step. The idea was requested by [＃]
The post explains how to make a chasing ※WELCOME§ display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display [＃]
In this post we learn how to make a sunrise/sunset simulator circuit using LEDs and just a couple of BJTs. The idea was requested by Mr. Jerry Circuit Objectives and [＃]
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Beacon Level Indicator Circuit for Combine Harvester Grain Tanks
Beacon Level Indicator Circuit for Combine Harvester Grain Tanks
The post explains a beacon indicator circuit for combine harvester grain tanks. The idea was requested by Mr. John Bosch. Circuit Objectives and Requirements I would like to retrofit the [＃]
In this article we learn how to make an LED dimmer circuit for enabling a dimming facility to any mains operated LEDs bulb. How LED Bulbs Work We know that [＃]
In this post we learn how to illuminate an LED using wireless power transmission. Wireless Power Technology Wireless power is an emerging technology in this present world. But the stunning [＃]
LI-FI is buzzing around the Internet since past few years; recently LI-FI is gained more popularity around the internet and developers. LI-FI stands for Light Fidelity which was coined by [＃]
In this post we learn how to design an intriguing LED light effect that generates a collapsing metor shower like appearance. The idea was requetsed by Mr.Pinto Mondal. Technical Specifications [＃]
TheRotating Beacon LED Simulator Circuit
Rotating Beacon LED Simulator Circuit
The post explains a simple LED flashing beacon circuit which exactly simulates a rotating police beacon light by generating alternating pulses of suddenly rising and fading illumination effect on the [＃]
In this post we study a simple rechargeable LED lantern circuit which features battery charging option from a dynamo as well as from a mains 220V source. The idea was [＃]
In this post we learn to make a simple sequential timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply [＃]
A simple RGB (Red, Green, Blue) moving or scrolling LED display can be made using a few 4017 ICs. Let＊s learn the procedure in detail. Understanding RGB LED RGB LEDs [＃]
In this post we learn how just a single IC MBI6001 can be used as a transformerless constant current LED driver circuit for illuminating a chain of many LED in [＃]
This article explains how to illuminate a Cree XM-L T6 LED using a current controlled driver circuit while the supply input is from a battery, or in case a mains [＃]
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Make this 2 Pin Bi-Color LED Flasher Circuit
Make this 2 Pin Bi-Color LED Flasher Circuit
This transformerless mains power supply circuit will allow flashing of a Bi-color 100 LED string, in an alternately switching red, green effect. Using 2-pin Bi-color LEDs The proposed circuit can [＃]
This circuit can be used for moving an LED bar graph in the upward sequence or downward sequence through a couple of push button switches. The concept can be implemented [＃]
The post explains a simple IC 555 based PWM controller circuit which may be used for controlling the intensity of a specified LED bank. The idea was requested by Mr.Rajdeep. [＃]
The post comprehensively discusses the construction procedure of a 1 watt LED lamp using SMD LEDs such as 3528 smd LEDs or 2214 SMD LEDs. Let＊s learn the details. 1 [＃]
The post explains a simple LM317 IC based RGB 3 watt LED color mixer circuit, which can be used for demonstrating the color mixing effects of red, blue, green colors [＃]
The post explains how to make a LED string light which can be operated from 220V mains through a single inexpensive PPC capacitor. The idea was requested by Mr. Basit [＃]
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Make this LED Cricket Stump Circuit at home
Make this LED Cricket Stump Circuit at home
In this post we learn how to make an illuminated LED cricket stump and bails for helping umpires declare a foolproof OUT, NOT-OUT decisions. The Circuit Concept You might be [＃]
The post explains how to run or blink three LEDs in sequence using Arduino. The post was written and submitted by: Jack Franko PROGRAM/* make RGB LEDs to blink in [＃]
The post explains the method of incorporating high watt LEDs with Arduino through external high voltage supplies. The question was put forth by Mr. Cole. The Circuit Question I stumbled [＃]
In this post we learn how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a [＃]
The post comprehensively discusses a basic Arduino code implementation guide for blinking its on-board LED. The data was built, tested, and written by Jack Franko. 
The post discusses a typical grow light circuit application for plants in order to stimulate photosynthesis effect in an artificially lit environment using multicolored LEDs. The idea was suggested by [＃]
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LED Driver Power Supply Circuit Using Dimmer Switch
LED Driver Power Supply Circuit Using Dimmer Switch
In this post we discuss an effective and efficient high current compact LED Driver power supply using a dimmer switch gadget. In one of my other posts I discussed a [＃]
The post discusses a 555 based PWM circuit which can be implemented as a 150 nos or more LED light intensity controller circuit. The idea was requested by Mr. Anil [＃]
The post describes a simple 220V
The article presents a 32V, 3 amp SMPS circuit which may be specifically used as an SMPS 100 watt LED driver, rated with the same specs. The circuit of the [＃]
The post explains the construction of a homemade 100 watt capacitive tubelight circuit using 1 watt LEDs. The idea was requested, constructed, tested and verified by one the avid readers [＃]
The post discusses an LED controller circuit having a boost and dimming facility specifically designed for underwater shooting application. The idea was requested by Mr. Svein. The Circuit Request I [＃]
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Infrared (IR) Controlled LED Emergency Lamp Circuit
Infrared (IR) Controlled LED Emergency Lamp Circuit
Here we discuss a an emergency lamp circuit which includes an infrared remote operated brightness control feature. The
The post presents a couple of simple LED intensity controller circuit which may be appropriately configured for specific related applications. The idea was requested by Mr. Chand. Technical Specifications I [＃]
In this article we will study a simple LED tube light circuit which could be directly replaced with faulty 40 watt T17 fluorescent tubes and fitted directly on the existing [＃]
In this post we learn how to make a 0.6V to 6V or 12V boost converter circuit using a single chip
The article discusses a very simple 100 watt LED bulb circuit using a few high voltage capacitors. The entire circuit could be built at a cost less than $25. I [＃]
The post presents a simple transformerless red LED sign circuit which can be made even by a novice. The circuit uses only a few high voltage capacitors, two resistors, and [＃]
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How to Make Car LED Bulb Circuit
How to Make Car LED Bulb Circuit
Typically all car turn signal lamps are around 12 to 20 watt rated which are traditionally incandescent bulb types and produce much lower light intensities compared to LED lights. Here [＃]
A car LED downlight available in the market can be easily integrated to an existing car battery if its rating is identical to the battery＊s voltage rating. Let＊s learn more [＃]
The following post explains a simple ambient light dependent LED illumination controller circuit. The light fades or intensifies proportionately i response to the ambient light conditions. With brighter daylights, the [＃]
Whenever we come across using 1 watt LEDs or other higher watt LEDs, we are always advised to use high grade aluminum based heatsinks for safeguarding the LEDs from heat, [＃]
The post discusses a basic Arduino function where we learn the process of fading an LED ON/OFF through some basic code implementations. Creating a Fading Effect We see how to [＃]
The article explains a simple single IC LED tube ligt circuit applicable for 110V/120V AC inputs. The circuit uses 30 numbers of 1 watt LEDs, and also includes a voltage [＃]
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5630 SMD LED Driver/Tube light Circuit
5630 SMD LED Driver/Tube light Circuit
The post explains a simple transformerless SMD 5630 type LED tube light circuit which can be built by anybody for illuminating home interior cheaply. The idea was requested by Mr. [＃]
The post explains 2 simple universal current controller circuits which can be used for safely operating any desired high watt LED. The universal high watt LED current limiter circuit explained [＃]
The article explains regarding how to connect and illuminate a few 5mm LEDs using a 3.7V Li-Ion cell, normally used in cell phones. I keep receiving requests from the readers [＃]
You might have already read about this
The article discusses a simple 1000 watt LED flood light circuit which can be very easily made by even a layman. The circuit was requested by Mr.Mike, let＊s know more [＃]
The circuit idea presented in this article can be used for controlling the intensity of many LEDs 3 Watt, 5 Watt LED DC to DC Constant Current Driver Circuit
3 Watt, 5 Watt LED DC to DC Constant Current Driver Circuit
The following article provides a simple yet very decent solution for driving powerful LEDs rated at 3 watt or 5 watt. Circuit Objective These 3 watt 5 watt and similar [＃]
In this post we study how to convert a rice bulb string light into an LED string light using some simply circuit modification. Circuit Concept Whether it＊s during a 
White LEDs have become so common nowadays that even school kids today know how to use them for making simple LED projects. LEDs are typically used for illuminating purposes, the [＃]
In this post we learn about a special circuit which can illuminate 24 high bright white LEDs from a single 9V PP3 battery, let＊s unravel the secret behind this amazing [＃]
In this post we study a LED driver circuit specially designed for backlighting LCD screens applications, Introductionlet＊ learn more about this interesting device. Introduction Today LCD products have become very [＃]
The post elaborately explains how to build a 3 simple LED bulb using many LEDs in series and powering them through a capacitive power supply circuit UPDATE: After doing a [＃]
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How to Make 1 A Constant Current LED Driver Circuit
How to Make 1 A Constant Current LED Driver Circuit
The article explains a simple 1 amp constant current LED driver circuit using the IC MBI6651 from MACROBLOCK. The IC has been specifically designed for operating high power LEDs safely [＃]
1) Small 1 watt SMPS LED Driver In the first design which is the most recommended one, we study an SMPS LED driver circuit which can be used for driving [＃]
In this post we will try to build a simple 12V LED lantern circuit which may be used at night while travelling and outings such as in picnics, trekking, or [＃]
A simple LED torch circuit that would light up 3 white LEDs from a 6 volt supply and would make your battery last forever is described here. A useful voltage [＃]
A plug-in type powerful wall LED lamp can be built at home by using a few white LEDs and by powering it through a cell phone charger. The power from [＃]
The article explains an innovative way of driving more than a hundred white LEDs from a 6 volt battery. The circuit utilizes the IC 555 for driving a step up [＃]
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Make a 100 Watt LED Floodlight Constant Current Driver
Make a 100 Watt LED Floodlight Constant Current Driver
You might have probably come across these fantastic high power, high efficiency LED modules and wondered how do you make these? Here we learn how to make a 100 watt [＃]
The article describes how to make a sequential LED array light circuit with an sequentially illuminating LED forming a bar graph kind of LED formation. Introduction The article describes a [＃]
An LED tube-light is lighting device built using high efficiency LEDs for illuminating a premise where it is installed, through the available AC mains supply. The following post explains the [＃]
This 4 watt LED driver is a device that will illuminate a 4 watt LED safely through a constant current circuit using the IC LM338. The IC LM338 as we [＃]
A very simple 10 LED roulette wheel circuit is shown here. pressing the button starts the LEDs in a rotational motion (sequencing) at full swing initially, and gradually slows down, [＃]
An infrared flood light is a circuit that creates an illumination over a wide range of area using infrared frequency. This infrared illuminated area can be perfectly visualized through specialized [＃]
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LED Strobe Light Circuit with Chasing, Flashing Effects
LED Strobe Light Circuit with Chasing, Flashing Effects
The proposed LED strobe light circuit will not only flash a group of LEDs with strobe pulses, but will also create a sequentially chasing effect over the strobing LEDs. You [＃]
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LM3524 Datasheet, Pinout Function, How to Use
LM3524 Datasheet, Pinout Function, How to Use
You may have heard a lot about the outstanding features of the IC LM3524 or the SG3524, however many of you may not be confident regarding how to set up [＃]
The article below comprehensively discusses all the basic facts, theories and information regarding the working and use of common electronic components such as resistors, capacitors, transistors, MOSFETs, UJTs, triacs, SCRs. [＃]
A unijunction transistor is a 3 terminal semiconductor device which is unlike a BJT has only a single pn junction. It is basically designed to be used as a single-stage [＃]
Zener diodes 每 named after its inventor Dr. Carl Zener are fundamentally used in electronic circuits for generating precise voltage references. These are devices that are able to create a [＃]
The popular 3 terminal fixed regulators available today are in the form of IC 7805, IC 7809, IC 7812, IC 7815, and IC 7824, which correspond to fixed voltage outputs [＃]
OPTOCOUPLERS OR OPTOISOLATORS are devices that enable efficient transmission of DC signal and other data across two circuit stages, and also simultaneously maintain an excellent level of electrical isolation between [＃]
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Schottky Diodes 每 Working, Characteristics, Application
Schottky Diodes 每 Working, Characteristics, Application
Schottky barrier diodes are semiconductor diodes designed with minimal forward voltage and fast switching speeds which may be as low as 10 ns. These are manufactured in current ranges of [＃]
The basic function of a comparator circuit to compare two voltage levels at its input pins and produce an output to show which input voltage has higher potential than the [＃]
The IC TL494 is a versatile PWM control IC, which can be applied in many different ways in electronic circuits. In this articles we discuss in detail regarding the main [＃]
Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode [＃]
In this post we study the datasheet, pinout, and technical specifications of the IC LMC555 which is a CMOS version of the standard IC 555. The IC is equipped with [＃]
The 2N3055 is a power bipolar transistor designed to handle high power loads in the range of 100 V, and 15 amps. In this post we comprehensively discuss the pinout [＃]
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Capacitor Inductor Calculations
Capacitor Inductor Calculations
Inductors can be imagined as the opposite of capacitors. The main difference between a capacitor and an inductor is that a capacitor carries a protective dielectric between its plates, which [＃]
If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we [＃]
Zener diodes that are normally available are mostly 1/4 watt or 1/2 watt types. And it is quite valid since the basic function of zener is to create stabilized reference [＃]
In this post we are going to take a look at the popular LM 324 IC. We will be looking at the pin configuration, its important features and its technical [＃]
In this article we will try to understand the main specifications and datasheet of the Li-Ion cell 18650 2600 mAh, which is one of the most popular Li-ion batteries, and [＃]
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400V 40A Darlington Power Transistor Datasheet Specifications
400V 40A Darlington Power Transistor Datasheet Specifications
In this post we investigate the datasheet and technical specifications of a 400V, 40A (ampere) power Darlington transistor MJ10022 and MJ10023, and also learn the main features of the device. [＃]
In this post we investigate the technical specifications and pinout details of the IC L293 which is a versatile quad half-H driver IC, and can be used for implementing many [＃]
The post explains how electret microphone devices work, through appropriate diagrams and formulas. What＊s a Microphone A microphone is a device designed for transforming weak sound vibrations into tiny electrical [＃]
In this article we are going to see, what force sensing resistor is, their construction, specification and finally how to interface it with Arduino microcontroller. What is Force Sensing Resistor [＃]
MOVs or metal oxide varistors are devices designed for controlling mains switch ON surges in electrical and electronic circuits. Selecting an MOV for a particular electronic circuit might require some [＃]
The post explains how to make an LM35 application circuit by understanding its datasheet, pinouts and other technical specifications. By: SS kopparthy LM35 Main Specifications The IC LM35 is a [＃]
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IC 555 Pinouts, Astable, Monostable, Bistable Circuits, Formulas
IC 555 Pinouts, Astable, Monostable, Bistable Circuits, Formulas
The post explains the how IC 555 works, its basic pinout details and how to configure the IC in its standard or popular astable, bistable, and monostable circuit modes. The [＃]
Resistors which are based on SMT technology are called SMT resistors which are one of the members of the SMD family or surface mount device family. By: S. Prakash The [＃]
One of the key elements used in the industry of the electronics is the switches. The various different types of tasks for which the switches are used include providing the [＃]
The electronics industry uses various different styles and types of inductors. Inductors are used in a circuit in order to perform many functions of various different styles. By: S. Prakash [＃]
The thermistor name has been devised as a short form for the ※thermally sensitive resistor§. The full form of the thermistor provides the general and the detailed idea of the [＃]
The industry of electronic circuits uses resistors of various different types available in the market. The properties of these resistors vary and are different for each type being ruled by [＃]
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Standard Resistor E-series Values
Standard Resistor E-series Values
The resistor＊s values which are provided to them fall within a category of standard or preferred resistor values. By: S. Prakash The values present within the standard resistor category are [＃]
In this post we learn regarding the basics of capacitor, and also regarding the various types of capacitors which are commonly available in the market and used in most electronic [＃]
The post comprehensively explains regarding the various standard resistor color codes, and systems employed for assigning resistors their specific values. The post also explains how to read and identify resistor [＃]
As electronics enthusiasts we may come across many kinds of resistors, from small fixed resistor to high current bulk rheostat. There are humongous classifications among resistors, but here we will [＃]
The article comprehensively explains everything regarding how to read and understand capacitor codes and markings through various diagrams and charts. The information can be used for identifying and selecting capacitors [＃]
The high power ※zener diode§ circuit using transistor shunt regulator presented here can be used for obtaining a highly accurate, temperature and voltage stabilized outputs from high current sources, safely. [＃]
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How PNP Transistors Work
How PNP Transistors Work
In this post we learn regarding how a PNP transistor works or conducts in response to a fixed biasing voltage and a varying supply voltage, across its base and emitter. [＃]
In this post we comprehensively discuss a 3 basic proximity sensor circuits with many application circuits and detailed features of the circuit. The first two capacitive proximity sensor circuits uses [＃]
In this post we study an outstanding high current diode which features not only an in-built reverse current protection but also an over-voltage protection for safeguarding sensitive electronic circuits against [＃]
The post explains regarding what＊s ripple current in power supply circuits, what causes it and how it can be reduced or eliminated using smoothing capacitor. What＊s Ripple in Power Supply [＃]
In the previous article we learned about ripple factor in power supply circuits, here we continue and evaluate the formula for calculating ripple current, and consequently the filter capacitor value [＃]
The post explains the correct way of understanding and identifying component specifications in a given circuit schematics, even if the details are missing in the document or the schematic. Schematics [＃]
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How a Connect a Potentiometer
How a Connect a Potentiometer
In this article we study how potentiometers work and try to understand how to connect potentiometers in electronic circuits. How Potentiometers Work Potentiometers, or pots as these are called in [＃]
The IC LM321 is the single op amp version of LM324 which is a quad op amp IC and carries 4 of these ICs in one package. Therefore for applications [＃]
In this post we systematically discuss how to connect diodes in parallel for getting upgrading the overall current specifications of the assembly. This requires special circuit arrangement to ensure uniform [＃]
The ZSD100 is an alarm frequency generator IC which incorporates a frequency swept alarm signal generator designed solely for fixed and vehicle protection alarm systems. Circuit Operation For acquiring the [＃]
Are you a beginner to electronics? Then here are few guidelines which might help you to buy some really useful components, so that you are always for an electronic and [＃]
MJ11021(PNP) MJ11022 (NPN) are high voltage complementary pair Darlington transistors suitable for all applications that involve high voltage high current such as in motor control, inverters, etc. Let＊s understand the [＃]
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2 Digital Potentiometer Circuits Explained
2 Digital Potentiometer Circuits Explained
The post explains a 2 simple, single chip digital potentiometer circuits which can be controlled through a single pushbutton, a dual pushbutton (up/down) or even through external digital (CMOS/TTL) input [＃]
The post explains the response of inductors to DC and AC voltages as well as when applied with capacitors which is often used as a complementing part with an inductor. [＃]
The IC 4040 is technically a 12-stage binary ripple counter chip, in simple words a device which will produce a calculated delayed frequency output in response to every pulse applied [＃]
The post discusses the main differences between an IGBT and a MOSFeT device. Let＊s learn more about the facts from the following article. Comparing IGTB with power MOSFETs The insulated-gate [＃]
The TSOP17XX series of ICs are infrared sensor devices designed for sensing infrared frequencies only with a specific range of modulated frequency, and interpreting them into a proportionate magnitude of [＃]
The TIP150, TIP151, TIP152 series are high voltage, high current Darlington transistors which can be used for applications involving voltages at mains 120V or 220V levels. The datasheet and other [＃]
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1.25V to 120V Mains Adjustable Voltage Regulator Circuit
1.25V to 120V Mains Adjustable Voltage Regulator Circuit
The TL783 is a variable three lead mains voltage regulator chip having an output range of 1.25 V to 125 V and a DMOS output transistor which is able to [＃]
The article comprehensively explains the how to cascade many 4033 ICs together for driving multiple 7 segment counter displays. In one of my previous articles I have uniquely explained the [＃]
Here we learn the main features, specifications and datasheet of the IC 4033 through a detailed technical analysis. How IC 4033 Works The IC 4033 is another Johnson decade counter/decoder [＃]
The post discusses the pinout function and other important specifications of the IC 4043. Let＊s learn about the complete datasheet of this very interesting chip. Pinout Datasheet of IC 4043 [＃]
The IC 4047 is one of those devices which promises an unlimited range of circuit application solutions. The IC is so versatile that on many occasions it easily outsmarts it＊s [＃]
In this post we comprehensively learn how to protect mosfets and prevent mosfet burning in electronic circuits by following some basic guidelines related to correct PCB layout, and careful manual [＃]
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Half-Bridge Mosfet Driver IC IRS2153(1)D Datasheet
Half-Bridge Mosfet Driver IC IRS2153(1)D Datasheet
The post details the datasheet, specifications, pinout configurations and a few application circuit for the IC IRS2153 which is a half-bridge IC from Texas Instruments. The unique feature of this [＃]
The article explains the main specifications, datasheet and circuit application notes of the IC LM123, LM323 which are precision 5V, 3 amp fixed voltage regulator IC. These ICs can be [＃]
The post explains the main specs and pinouts of a small signal, low power N-channel mosfet 2N7000G. Mosfets vs BJTs When we talk of mosfets we normally associate it with [＃]
The post explains the main features datasheet of high current N-Channel mosfet IRFP2907 which is rated to handle up to a staggering 209 amps of continuous current at a reasonably [＃]
The following posts explains how to build a simple to build FM stereo transmitter circuit using IC BA1404. About the IC BA1404 An exceptional stereo audio FM wireless transmitter circuit [＃]
The following postCree XLamp XM-L LED Datasheet
Cree XLamp XM-L LED Datasheet
The XLamp XM-LED can be
The post
The post discuses the main specifications, datasheet and working principle of the IC LM567, which is a precise phase-locked loop with synchronous AM lock detection and power output device. In [＃]
The article relates us with the important features and specifications of MJE13005 device, which is a high voltage, high speed transistor, applicable for many
A Negative Temperature Coefficient (NTC) thermistor is a device which suppresses switch ON current surge by resisting current through a temporary increase in its body temperature. This increase in temperature [＃]
The IRF540N is an advanced HEXFET N-channel power mosfet, from International Rectifier. The device is extremely versatile with its current, voltage switching capabilities, and thus becomes ideal for numerous electronic [＃]
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Understanding SG3525 IC Pinouts
Understanding SG3525 IC Pinouts
The article explains the pinout functions of the IC SG3525 which is a regulating pulse width modulator IC. Let＊s understand in details: Main Technical Features The main features of the [＃]
In this post we learn how a shunt regulator IC works typically in SMPS circuits. We take the example of the popular TL431 device and try to understand its use [＃]
Triacs are one of the most important active electronic components which are exclusively used for power switching applications, these devices are especially suited to AC mains loads, and are able [＃]
If you are looking for a power transistor able to support high current upto 25 amps and yet not incorporate the traditional cumbersome TO-3 package, then the TIP36 would
The following article explains the main technical features and specifications of 
The post comprehensively discusses the the similarities and difference between mosfets and BJTs and also their particular pros and cons. Introduction When we talk of electronics, one name becomes extremely [＃]
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LM386 Amplifier Circuit 每 Working Specifications Explained
LM386 Amplifier Circuit 每 Working Specifications Explained
The IC LM386 is a 8-pin tiny power amplifier chip, specially made for operating under relatively low voltage parameters, yet provide considerable amplification. IC LM386 amplifier circuit becomes suitable for [＃]
In this post we discuss the method of correctly replacing a BJT with a MOSFET, without affecting the final outcome of the circuit. Introduction Until MOSFETs arrived in the field [＃]
The explained circuit in this article is probably the simplest and the cheapest, since it employs minimum number of components and the making of the circuit is very straightforward. Circuit [＃]
In this post we learn the main specifications and pinout details of the NPN transistor 2N3904 Introduction The transistor 2N3904 comes under the category of NPN small signal, low power, [＃]
The transistor 188 is one of my favorites, simply because even being so tiny it＊s able to handle currents as high as 1 Amp. Understanding BEL188 Transistor Specification/Datasheet The transistor [＃]
In this post we will try to analyze a few interesting IC LM338 based power supply circuits and related application circuits which can used by all hobbyists and professional for [＃]
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Archives for Electronic Components
How to Understand and Use IC 4093 NAND Gates, PinOuts
How to Understand and Use IC 4093 NAND Gates, PinOuts
In this article we learn how to use NAND Gates from the IV 4093 or any other similar IC consisting of NAND gates. About IC 4093 The IC 4093 may [＃]
In this article we are going to make an effort to understand the technical specs of the BJTs BUX86 and BUX87 which are high voltage complementary paired transistors. Introduction The [＃]
This article explains the main specifications, pinouts and application related information regarding the transistor NPN BJT 2N2222, 2N2222A, and also its complimentary PNP pair 2N2907 BJT Introduction In one of [＃]
If you are wondering how to correctly use white LEDs in circuits so that they can be illuminated safely without damaging, then this post might help you to evaluate the [＃]
The article explains 3 popular functions of capacitors and how to use capacitors in electronic circuit by analyzing their appropriate working modes depending on the application need of a given [＃]
A bridge rectifier is an electronic network using 4 diodes which is used for converting an AC input to DC output. The process is called full wave rectification. Here we [＃]
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Archives for Electronic Components
How to Use Transistors
How to Use Transistors
If you have understood correctly, how to use transistors in circuits, you might have already conquered half of
Another versatile device, the IC 4060 has numerous applications and can be used for implementing various useful functions in an electronic circuit. Introduction Basically the IC 4060 is a oscillator/Timer [＃]
The IC 4017 can be considered as one of the most useful and versatile chip having numerous electronic circuit applications. About IC 4017 Technically it is called the Johnsons 10 [＃]
A compilation of important assorted transistor simple circuits to build has been included here. Simple Transistor Circuits for New Hobbyists Many simple transistor configurations like, rain alarm, delay timer, set [＃]
Five simple yet effective electronic toggle flip flop switch circuits can be built around the IC 4017, IC 4093, and IC 4013. We will see how these can be implemented [＃]
The 8 fundamental IC 741 based op amp circuits presented here are not only interesting but also very amusing to build. The included circuit ideas like inverting and non-inverting amplifiers, [＃]
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Archives for Electronic Components
220V Solid State Relay (SSR) Circuit using Triac and OptoCoupler
220V Solid State Relay (SSR) Circuit using Triac and OptoCoupler
An AC mains solid state relay or SSR is a device which is used for switching heavy AC loads at mains level, through isolated minimal DC voltage triggers, without incorporating [＃]
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Archives for Electronic Devices and Circuit Theory
Understanding MOSFET Current Rating in Datasheets
Understanding MOSFET Current Rating in Datasheets
The post comprehensively explains the current rating of MOSFETs in their datasheets, and helps us to understand how it is calculated by the design engineers, keeping in mind the various [＃]
If you are wondering or worried about precisely how much power your MOSFET can tolerate under extreme conditions, or under extreme dissipative situations, then the SOA figures of the device [＃]
In this post we discuss MOSFET avalanche ratings, and learn how to understand this rating in the datasheet correctly, how the parameter is tested by the manufacturer, and measures to [＃]
IGBT stands for Insulated-gate-Bipolar-Transistor, a power semiconductor which includes the features of a MOSFET＊s high speed, voltage dependent gate switching, and the minimal ON resistance (low saturation voltage) properties of [＃]
The diac is a two-terminal device having a combination of parallel-inverse semiconductor layers, which allows the device to be triggered through both directions regardless of the supply polarity. Diac Characteristics [＃]
A unijunction transistor is a 3 terminal semiconductor device which is unlike a BJT has only a single pn junction. It is basically designed to be used as a single-stage [＃]
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Archives for Electronic Devices and Circuit Theory
Solid State Relay (SSR) Circuit using MOSFETs
Solid State Relay (SSR) Circuit using MOSFETs
SSR or Solid state relays are high power electrical switches that work without involving mechanical contacts, instead they use solid state semiconductors like MOSFETs for switching an electrical load. SSRs [＃]
Although transistors (BJTs) are popularly used for making amplifier circuits, these can be also effectively used for switching applications. A transistor switch is a circuit in which the collector of [＃]
Photodiodes and phototransistors are semiconductor devices which have their p-n semiconductor junction exposed to light through a transparent cover, so that external light can react and force an electrical conduction [＃]
OPTOCOUPLERS OR OPTOISOLATORS are devices that enable efficient transmission of DC signal and other data across two circuit stages, and also simultaneously maintain an excellent level of electrical isolation between [＃]
A triac can be compared to a latching relay. It will instantly switch ON and close as soon as it＊s triggered, and will remain closed as long as the supply [＃]
A tunnel diode is a type of semiconductor diode which features a negative resistance on account of a quantum mechanical effect known as tunneling. In this post we will learn [＃]
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Archives for Electronic Devices and Circuit Theory
Comparator Datasheet Parameters
Comparator Datasheet Parameters
This post will help you to understand a few of the crucial comparator parameters or specifications which are generally found in comparator IC datasheets. Some of the major parameters that [＃]
A varactor diode, also called varicap, VVC (voltage-variable capacitance, or tuning diode, is a type of semiconductor diode which features a variable voltage-dependent capacitance on its p-n junction when the [＃]
Schottky barrier diodes are semiconductor diodes designed with minimal forward voltage and fast switching speeds which may be as low as 10 ns. These are manufactured in current ranges of [＃]
In electronics, rectification is a process in which a rectifier diode converts an alternating full cycle AC input signal into a half cycle DC output signal. A single diode produces [＃]
The basic function of a comparator circuit to compare two voltage levels at its input pins and produce an output to show which input voltage has higher potential than the [＃]
AUnderstanding MOSFET Turn-ON Process
Understanding MOSFET Turn-ON Process
A correctly calculated MOSFET turn-ON process ensures that the device is switched ON with optimal efficiency. While designing MOSFET based circuits you might have wondered what is the correct way [＃]
In transistors transfer characteristics can be understood as plotting of an output current against an input-controlling magnitude, which consequently exhibits a direct ※transfer§ of variables from input to output in [＃]
Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode [＃]
Darlington transistor is a well known and popular connection using a pair of bipolar transistor junction transistor (BJT), designed for operating like an unified ※superbeta§ transistor. The following diagram shows [＃]
The field-effect transistor (FET) is an electronic device in which an electric field is used to regulate the flow of current. To implement this a potential difference is applied across [＃]
Troubleshooting BJT circuits is basically a process of identifying the electrical faults in the network using multimeters across the various nodes in the circuit. BJT troubleshooting techniques is a huge [＃]
Archives for Electronic Devices and Circuit Theory
Transistor Common Collector
Transistor Common Collector
A BJT common collector amplifier is a circuit in which the collector and the base of the BJT share a common input supply, hence the name common collector. In our [＃]
In bipolar junction transistors the factor that determines the sensitivity level of the device to base current, and the amplification level at its collector is called beta or the hFE. [＃]
This configuration is known as common-emitter configuration because here the emitter is used as the common negative terminal for the input base signal and the output load. In other words, [＃]
In this section we are going to analyze BJT common-base configuration, and learn regarding its driving point characteristics, reverse saturation current, base to emitter voltage and evaluate the parameters through [＃]
A bipolar transistor or a BJT is a 3 terminal semiconductor device which is able to amplify or switch small signal input voltages and currents to significantly larger output signal [＃]
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Archives for Electronic Devices and Circuit Theory
Emitter-Stabilized BJT Bias Circuit
Emitter-Stabilized BJT Bias Circuit So far we have been studying BJT analysis dependent on the level of 汕 over their corresponding operating points (Q-point). In this discussion we will check out how a given [＃] Interim pages omitted ＃ Archives for Electronics TutorialExploring Current Mirror Circuits with Practical Designs
Exploring Current Mirror Circuits with Practical Designs
The M
In this post we learn all the basics of inductors, its working principle, and how to design inductors with the help of formulas and calculations. Inductors are vastly used from [＃]
In this article we discuss the main differences between op amp and comparator, and try to understand why op amps are not ideally suited to be used like compartaors. We [＃]
An AC bridge is a circuit which can be used for measuring parameters like capacitance, resistance, Inductance using differential method, by comparing them with known values of similar components, positioned [＃]
The stability of good quality RC oscillators can be expected to be around 0.1%, while normally we can assume the stability of LC oscillators to be up to 0.01%. When [＃]
Boolean algebra is a assortment of basic mathematical techniques applied to signify and communicate the logical procedures that happen within a digital circuit. Difference Between Boolean Algebra and Common Algebra [＃]
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Understanding Digital Circuits
Understanding Digital Circuits
In the following paragraphs we will try to understand the most basic foundations of digital electronic circuits: namely gates and flip -flops. Whether it is a complex and larger digital [＃]
IGBT stands for Insulated-gate-Bipolar-Transistor, a power semiconductor which includes the features of a MOSFET＊s high speed, voltage dependent gate switching, and the minimal ON resistance (low saturation voltage) properties of [＃]
While Li-Ion and Lithium polymer electrolyte (LiPo) batteries possess unmatched energy density, Lithium-based batteries are costly to produce and need meticulous handling along with a cautious charging. With the advancement [＃]
The article below comprehensively discusses all the basic facts, theories and information regarding the working and use of common electronic components such as resistors, capacitors, transistors, MOSFETs, UJTs, triacs, SCRs. [＃]
In a triac phase control circuit, the triac is triggered ON only for specific portions of the AC half cycles, causing the load to operate only for that period of [＃]
In an RC circuit, a combination or R (resistor) and C (capacitor) is used in specific configurations in order to regulate the flow of current, for implementing a desired condition. [＃]
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Archives for Electronics Tutorial
Unijunction Transistor (UJT) 每 Comprehensive Tutorial
Unijunction Transistor (UJT) 每 Comprehensive Tutorial
A unijunction transistor is a 3 terminal semiconductor device which is unlike a BJT has only a single pn junction. It is basically designed to be used as a single-stage [＃]
SSR or Solid state relays are high power electrical switches that work without involving mechanical contacts, instead they use solid state semiconductors like MOSFETs for switching an electrical load. SSRs [＃]
In this post we comprehensively learn about reed switch functioning, and how to make simple reed switch circuits. What is Reed Switch Reed switch also called reed relay, is a [＃]
Zener diodes 每 named after its inventor Dr. Carl Zener are fundamentally used in electronic circuits for generating precise voltage references. These are devices that are able to create a [＃]
For any electronic enthusiast making PCBs for an electronic project can be a lot of fun. A printed circuit board or PCB not only helps to build compact circuit projects, [＃]
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Archives for Electronics Tutorial
Simple Circuits using IC 7400 NAND Gates
Simple Circuits using IC 7400 NAND Gates
In this article we will discuss many assorted circuit ideas built using NAND gates from ICs such as IC 7400, IC 7413, IC 4011, and IC 4093 etc. IC 7400, [＃]
Photodiodes and phototransistors are semiconductor devices which have their p-n semiconductor junction exposed to light through a transparent cover, so that external light can react and force an electrical conduction [＃]
OPTOCOUPLERS OR OPTOISOLATORS are devices that enable efficient transmission of DC signal and other data across two circuit stages, and also simultaneously maintain an excellent level of electrical isolation between [＃]
A triac can be compared to a latching relay. It will instantly switch ON and close as soon as it＊s triggered, and will remain closed as long as the supply [＃]
MQ-135 is a gas sensor designed to sense or detect gaseous substance and generate a corresponding positive output voltage. In this post we will learn how to connect or wire [＃]
In electronics, rectification is a process in which a rectifier diode converts an alternating full cycle AC input signal into a half cycle DC output signal. A single diode produces [＃]
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Archives for Electronics Tutorial
Digital-to-Analog (DAC), Analog-to-Digital (ADC) Converters Explained
Digital-to-Analog (DAC), Analog-to-Digital (ADC) Converters Explained
A
A correctly calculated MOSFET turn-ON process ensures that the device is switched ON with optimal efficiency. While designing MOSFET based circuits you might have wondered what is the correct way [＃]
In transistors transfer characteristics can be understood as plotting of an output current against an input-controlling magnitude, which consequently exhibits a direct ※transfer§ of variables from input to output in [＃]
Two main types of FETs that presently exist are: JFETs and MOSFETs. MOSFETs can be further classified into depletion type and enhancement type. Both these types define the fundamental mode [＃]
Implementing P-channel MOSFETs in an H-bridge circuit may look easy and enticing, however it may require some stringent calculations and parameters for achieving an optimal response. P-channel MOSFETs are usually [＃]
Repairing a mosquito bat is a process in which a malfunctioning mosquito bat is checked for faults using meters and restored to its earlier working condition. This post provides some [＃]
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Archives for Electronics Tutorial
H-Bridge Bootstrapping
H-Bridge Bootstrapping
Bootstrapping is a crucial aspect that you will find in all H-bridge or full bridge networks with N-channel mosfets. It is a process in which the gate/source terminals of the [＃]
Inductors can be imagined as the opposite of capacitors. The main difference between a capacitor and an inductor is that a capacitor carries a protective dielectric between its plates, which [＃]
If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we [＃]
In this post we will elaborately discuss
The interfacing of power devices like BJTs, and MOSFETs with Arduino output is a crucial configuration which allows switching high power loads through low power outputs of an Arduino. In [＃]
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Archives for Electronics Tutorial
Understanding Amplifier Circuits
Understanding Amplifier Circuits In this post we comprehensively learn regarding the fundamental working principles of semiconductor devices, and how the internal structure of semiconductors function under the influence of electricity. The resistivity value [＃]
In this tutorial we learn how to do basic Arduino programming through example codes and sample programs. This tutorial can be an extremely valuable course for all the newcomers who [＃]
The first successful assessment of PID control theory was practically verified in the field of automatic steering systems for ships, way back around the year 1920. After this it was [＃]
In this post we are going to explore pull-Up resistor and pull-down resistor, why they are commonly used in electronic circuits, what happens to electronic circuits without Pull-Up or Pull-down [＃]
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Archives for Electronics Tutorial
Digital Buffer 每 Working, Definition, Truth Table, Double Inversion, Fan-out
Digital Buffer 每 Working, Definition, Truth Table, Double Inversion, Fan-out
A buffer stage basically a reinforced intermediate stage which allows the input current to reach the output without getting affected by the output loading. In this post we will try [＃]
In this post we are going to comprehensively understand regarding what logic gates are and its working. We will be taking a look at the basic definition, symbol, truth table, [＃]
In this post we try to analyze what is constant current source and how it affects a load, or how it may be used with a load correctly for achieving [＃]
In this post we learn how to use a transistor emitter follower configuration in practical electronic circuits, we study this through a few different example application circuits. An emitter follower [＃]
In this post we are going to understand what a supercapacitor is, how closely similar or different to an ordinary capacitor, where it is used and we will be doing [＃]
Capacitor charge and discharge periods is usually calculated through an RC constant called tau, expressed as the product of R and C, where C is the capacitance and R is [＃]
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Archives for Electronics Tutorial
Transistor Stray pickup False Triggering Problem
Transistor Stray pickup False Triggering Problem
The article explains how to make any BJT or mosfet based circuit free from stray signal pickup and false triggering by simply attaching a filter resistor or a capacitor across [＃]
Making a zero crossing detector circuit is actually very easy and it could be effectively applied for protecting sensitive electronic equipment against mains switch ON surges. A zero crossing detector [＃]
The post explains how electret microphone devices work, through appropriate diagrams and formulas. What＊s a Microphone A microphone is a device designed for transforming weak sound vibrations into tiny electrical [＃]
In this post we learn how capacitive voltage divider circuits operate in electronic circuits, through formulas and solved examples. By: Dhrubajyoti Biswas What is a Voltage Divider Network Talking about [＃]
In most automatic battery charger circuits in this blog you might have seen an opamp with a hysteresis feature included for some crucial function. The following article explains the significance [＃]
In this post we will try to understand how an accelerometer works and also learn the specifications of a popular accelerometer ADXL335 in detail. How Flex Resistors Work and how to Interface it with Arduino for Practical Implementation
How Flex Resistors Work and how to Interface it with Arduino for Practical Implementation
As electronics enthusiasts we may come across many kinds of resistors, from small fixed resistor to high current bulk rheostat. There are humongous classifications among resistors, but here we will [＃]
The article comprehensively explains everything regarding how to read and understand capacitor codes and markings through various diagrams and charts. The information can be used for identifying and selecting capacitors [＃]
The post comprehensively explains a simple electric match igniter circuit which can be used for implementing a foolproof ignition of a series of Ematches through a microcontroller based control system. [＃]
In this post we learn regarding how a PNP transistor works or conducts in response to a fixed biasing voltage and a varying supply voltage, across its base and emitter. [＃]
In this article we go through a detailed discussion regarding how to design notch filters with precise center frequency and for maximum impact. Where Notch Filter are Used Notch filter [＃]
In this post we try to investigate internal resistance of battery and try to learn the critical characteristics involved with this battery parameter. What＊s Internal Resistance of Battery The internal [＃]
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Archives for Electronics Tutorial
Calculating Inductors in Buck Boost Converters
Calculating Inductors in Buck Boost Converters
In this post we try to understand the method of dimensioning or calculating inductors in buck boost converter circuits in order to ensure an optimal performance from these devices. We [＃]
A boost converter (also called step-up converter) is a DC to DC converter circuit which is designed to convert an input DC voltage into an output DC voltage with a [＃]
In this post we＊ll try to understand the various parameters required for designing a correct buck converter inductor, such that the required output is able to achieve maximum efficiency. In [＃]
The article below presents a comprehensive know how regarding how buck converters work. As the name suggests, a buck converter is designed to oppose or restrict an input current causing [＃]
In this post we investigate what＊s a BLDC motor and subsequently we learn regarding the design of a sensorless BLDC motor driver circuit. BLDC CPU Fans Seen those fast moving [＃]
Wireless power transfer is a process in which electrical energy is transferred from one system to another system through electromagnetic waves without using wires or any physical contact. In this [＃]
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Archives for Electronics Tutorial
How to Connect a TSOP1738 IR Sensor
How to Connect a TSOP1738 IR Sensor
TSOP17XX series devices are advanced infrared sensors having a specified center frequency of operation which makes their detection extremely reliable and foolproof. In this post we learn how to connect [＃]
The following email discussions were sent to me by Mr John Sweden who is one of the avid readers of this blog, here he explains about an USB isolator device, [＃]
SPWM refers to Sine Wave Pulse Width Modulation which is a pulse width arrangement in which the pulses are narrower at the start, which gradually get broader at the middle, [＃]
Basically an SCR ( Silicon Controlled Rectifier) which is also known by the name Thyristor works quite like a transistor. What
Mosquito and other forms of fly trap mechanisms work by making use of luring techniques for attracting the insects, which involve carbon dioxide gas, body odor simulators and ultraviolet lights. [＃]
PWM stands for pulse width modulation which signifies the variable nature of the pulse widths that may be generated from a particular source such as a discrete IC, MCU, or [＃]
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Archives for Electronics Tutorial
How to Use Resistors with LED, Zener and Transistor
How to Use Resistors with LED, Zener and Transistor
In this post we learn how to use resistors while designing an electronic circuits using LEDs, zener diodes, or transistors. This article can be very useful for the new hobbyists [＃]
In this post we learn a simple IC 555 set/reset application circuit for activating or deactivating a relay alternately. Circuit Operation This electronic set reset circuit is very simple, easy [＃]
In many sensitive electronic circuits or loads, adjusting the current limit in its power supply could be one of the most crucial requirements for ensuring a fail proof safety for [＃]
The electronic circuit device which is used for stepping up voltage to a 2x order by charging capacitors from a lower input voltage is known as voltage doubler. The charge [＃]
In this post we comprehensively learn how to protect mosfets and prevent mosfet burning in electronic circuits by following some basic guidelines related to correct PCB layout, and careful manual [＃]
The post explains an universal IC 555 based buck-boost circuit which can be used for various different applications involving efficient power processing requirements. Using IC 555 for the Buck-Boost This [＃]
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Archives for Electronics Tutorial
High Current Voltage Doubler Circuit
High Current Voltage Doubler Circuit
The post explains a voltage high current doubler circuit which will almost double the voltage that＊s been applied at the input (up to 15V max), and also it becomes specifically [＃]
The following post describes how to drive a relay by using an isolated method, or through an opto-coupler device. The question was asked by one of the
The article explains the pinout functions of the IC SG3525 which is a regulating pulse width modulator IC. Let＊s understand in details: Main Technical Features The main features of the [＃]
The IC 555 is an extremely useful and versatile device which can be applied for configuring many useful circuits in the field of electronics. One very useful feature of this [＃]
The post comprehensively discusses the the similarities and difference between mosfets and BJTs and also their particular pros and cons. Introduction When we talk of electronics, one name becomes extremely [＃]
In this post we discuss the method of correctly replacing a BJT with a MOSFET, without affecting the final outcome of the circuit. Introduction Until MOSFETs arrived in the field [＃]
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Archives for Electronics Tutorial
Introduction to Schmitt Trigger
Introduction to Schmitt Trigger
Almost any digital circuit used in modern high-speed data communications needs some form of Schmitt trigger action on its inputs. Why Schmitt Trigger is Used The main purpose of a [＃]
There are many types of voltage-to-current and current-to-voltage converter circuits, and most of them use a combination of opamps and transistors to achieve a high level of accuracy. But when [＃]
The strain gauge is one of the most useful tools for precisely measuring expansion or contraction of a material as forces are applied. Strain gauges are also useful for measuring [＃]
In this post we try to investigate the mains differences between alternating current (AC) and direct current (DC). The word AC and DC are pretty common with electronics and we [＃]
In this post we try to investigate what transducers are and how they need to be configured in circuits while using them in a given application Understanding Piezo Transducers A [＃]
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Astable Multivibrator Circuit Using NAND Gates
Astable Multivibrator Circuit Using NAND Gates
An astable multivibrator is referred to an electronic configuration which is able to generate continuous alternate high and low pulses from a couple of outputs, operating in tandem. Why IC [＃]
In this post we comprehensively learn how to use any opamp as a comparator in a circuit for comparing a input differentials and producing the corresponding outputs. What is an [＃]
In this post we will try to learn how to diagnose and repair an inverter, by comprehensively learning the various stages of an inverter, and how a basic inverter functions. [＃]
Solar panels are devices which are used for generating electricity from sun light. Solar panels consist of many individual photo voltaic cells arranged in series. Introduction Each cell is able [＃]
In this post we try to evaluate how to configure or connect electronic components such as resistors, capacitors withing electronic circuits through correct calculation Kindly read my previous post regarding [＃]
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Archives for Electronics Tutorial
Difference Between Current and Voltage 每 What is Voltage, What is Current
Difference Between Current and Voltage 每 What is Voltage, What is Current
If you are wondering how to correctly use white LEDs in circuits so that they can be illuminated safely without damaging, then this post might help you to evaluate the [＃]
In this article we will comprehensively study a transistor relay driver circuit and learn how to design its configuration by calculating the parameters through formulas. Importance of Relay Relays are [＃]
You might have searched regarding what is hysteresis a number of times through many different posts on different websites, but to no avail. You might have also tried to find [＃]
Another versatile device, the IC 4060 has numerous applications and can be used for implementing various useful functions in an electronic circuit. Introduction Basically the IC 4060 is a oscillator/Timer [＃]
The IC 4017 can be considered as one of the most useful and versatile chip having numerous electronic circuit applications. About IC 4017 Technically it is called the Johnsons 10 [＃]
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Archives for Electronics Tutorial
Making a Time Machine 每 Concept Explored
Making a Time Machine 每 Concept Explored
In this article you will learn how to calculate LEDs in series and parallel using a simple formula and configure your own personalized LED displays, now you don＊t just have [＃]
In this post we learn how to make a simple transistor latch circuit using just two BJTs and a few resistors. Introduction A transistor latch is a circuit which latches [＃]
Connecting transistors in parallel is a process in which the identical pinouts of two or more transistors are connected together in a circuit in order to multiply the power handling [＃]
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Archives for Fish Aquarium
Fish Aquarium Oxygen Generator Circuit
Fish Aquarium Oxygen Generator Circuit
In this article we discuss how to make a simple fish aquarium oxygen generator circuit using the concept of electrolysis of water. Generating Pure Oxygen The production of oxygen through [＃]
In this design a solenoid is operated using an IR remote control, which in turn toggles the fish feeder mechanism. In this article we learn how to make a simple [＃]
The post explains a 3 beautiful fish aquarium light optimizer circuits your fishes will love.These are designed to automatically control the illumination of a group of appropriately selected LEDs with [＃]
The post explains an aquarium feeder timer circuit which sustains a set of continuous operations as per a predetermined timing sequence through the respective pot controls. The idea was requested [＃]
The post discusses a stop-motion switch circuit or a strike indicator for aiding fishing yo yo applications. The idea was requested by Mr. Mike. Technical Specifications (kindly bear the long [＃]
Archives for Free Energy
Regenerative Motor Acceleration Experiment
Regenerative Motor Acceleration Experiment
In this post we will learn about this special regenerative motor coil overunity phenomena which can be very interesting to the primary level experimenters like us. In this experiment a [＃]
A self-powered generator is a perpetual electrical device designed to infinitely run and produce a continuous electrical output which is usually larger in magnitude than the input supply through which [＃]
While experimenting with a 300V DC to 220V AC inverter circuit, I noticed a strange overunity phenomenon which appeared to be like the generation of free energy from the inverter [＃]
In this post we learn about a unique 8x overunity circuit quite resembling a joule thief design which was created by one of the noted researcher Professor Steven E. Jones [＃]
In this post we learn a method to harvest free electricity from a
The following regenerative electricity generator circuit in cars and motorcycles was inspired from the oscillating dolls, and idols inside vehicles which may be seen constantly swaying and moving due to [＃]
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Archives for Free Energy
How to Generate Electricity from Piezo
How to Generate Electricity from Piezo
Generating electricity from piezo could be as easy as making a flick with your finger＃.. curious to know how? Let＊s learn more about this amazing device called piezo, which can [＃]
The idea of acquiring free energy from induction cookwares using an external bifilar coil was suggested by one of the keen enthusiasts and a regular visitor of this blog. Let＊s [＃]
A thermoelectric generator (TEG) is a kind of ※free energy device§ which has the property of converting temperature into electricity. In this post we learn a little about this concept [＃]
A term MEG refers to motionless electromagnetic generator circuit which is designed to generate electrical energy without using any moving components or involving any kind of mechanical stages. How a [＃]
Whenever brakes are applied in any vehicle, a lot of energy is wasted in the process of stopping the vehicle mass and again restoring the mass back to its original [＃]
When this free energy generator called the N-Machine was developed by the famous physicist Bruce DePalma he could implement a 100 kilowatt generator right in his garage with ordinary tools. [＃]
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Archives for Free Energy
Make Free Drinking Water from Sea Water
Make Free Drinking Water from Sea Water
The post explains a cheap yet effective method of desalinating large quantities of sea water into free drinking water at home. The idea was requested by Mr. Mike. Technical Specifications [＃]
In this article we investigate the flywheel concept and learn how it may be used for charging batteries and also enhance to work at the overunity level. What is a [＃]
The post explains how to make a simple windmill generator circuit which can be used for charging batteries, or for operating any desired electrical equipment, all through day and night, [＃]
In this post we will learn how to generate electricity from our shoe while walking. This electricity can be simultaneously used for charging a cellphone battery. In a few of [＃]
This pendulum electricity generator can be used in villages for charging cellphones free of cost just by applying momentary pushes to the pendulum frequently or as desired throughout the day. [＃]
In this article we investigate a free energy device concept in the form of a gravity LED lamp circuit for illuminating an LED through force of gravity. The Circuit Concept [＃]
Archives for Free Energy
How to get Free Energy from a Pendulum
How to get Free Energy from a Pendulum
In this post we＊ll try to understand regarding how a pendulum mechanism can be used for achieving overunity and generate electricity in the form of free energy. Pendulum Working Principle [＃]
In this post we＊ll try to investigate the making of HHO gas in automobiles for enhancing their mileage by approximately 50% or more, that means a reduction of petrol or [＃]
Converting water into free HHO fuel gas can be extremely inefficient if ordinary means are employed for the involved electrolysis of water. In this post we try to investigate a [＃]
Lightning in skies is the phenomenon which proves beyond doubt that free electrical energy could be there in abundant quantities all around us. Power of Thunder Lightening A typical lightning [＃]
The post discusses an over unity generator set up using two motors and an inverter for getting a sustained free energy infinitely. The idea was suggested by Mr. Dare. Technical [＃]
Free Energy is available all around us in a variety of different forms, it just needs to be appropriately harnessed and used. One such example is our modern streets and [＃]
Archives for Free Energy
Parallel Path Overunity device
Parallel Path Overunity device
The post explains the making of a parallel path overunity device through a few magnets and coils. What is Parallel Path Technology Parallel path technology was first introduced by Mr. [＃]
Cold electricity is generated using an unconventional principle via the negative line of an LC network, which stimulates the flow of positive charge in the line, causing an entropic negative [＃]
For a novice, to understand more on Free Energy Receiver concept, let＊s consider a solar-electric panel; widely used as an alternative to electrical energy. Discussing Nikola Tesla＊s Free Energy Concepts [＃]
A free energy collector circuit helps to convert surrounding radio frequency waves to electric power and can provide 40 watts to 10 watts indefinitely. The Circuit Concept An option to [＃]
The following post describes a simple circuit idea which can be used for generating free electrical energy for illuminating a few safety flashing LEDs on a
In this post we learn how to recharge and use bad, defective discarded batteries using an innovative battery charging process invented by John Bedini. Lead acid batteries can sometimes be [＃]
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Archives for Free Energy
Deriving Free Energy from Air Using a Sec Excitor Coil
Deriving Free Energy from Air Using a Sec Excitor Coil
The following experiment shows how interestingly Mr.Steven could draw free energy from air using his home-built sec exciter coil tower, he used it to a feed a small LM317 power [＃]
In this post we will try to investigate a circuit which can charge a small Ni-Mh battery by extracting free energy from the ether or air. Let＊s learn more Discussing [＃]
One of my friends who is an inventor, a mad scientist and an intense electronic enthusiast Mr. Steven Chiverton is always upto discovering and making intriguing electronic circuits and gadgets. [＃]
A request was sent to me by one of the readers Mr.
In this post we investigate a couple of quick and efficient methods of generating free electricity from the sea waves which is limitless and an infinite source of energy. Introduction [＃]
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Archives for Fun Projects
Robot Voice Generator Circuit
Robot Voice Generator Circuit
A robot voice generator circuit is a device which modifies a normal human voice into a typical robot like voice, that we normally come across in movies, or video games. [＃]
In article below explains the control circuit for an automatic tennis ball throwing machine, designed to throw a tennis ball through a mechanized catapult machine, controlled with powerful motors. In [＃]
We all know what a dice is and how manually a dice is shuffled and thrown to get a random number. In older times when we did not have computer [＃]
In this post we will learn how to build an electromagnetic levitation circuit which can imitate an anti-gravity phenomenon by ensuring that an iron object remains pulled above the ground [＃]
In this post we learn how to build a simple plasma globe or a plasma ball circuit using very oridinary parts such as an automotive ignition coil, a triac, diac, [＃]
This can be a perfect circuit project for Halloween, although sound activated gadgets likewise may have plenty of other applications. When somebody enters the Halloween house, a sensitive MIC detects [＃]
Archives for Fun Projects
2 Simple Fastest Finger First Circuits Explained
2 Simple Fastest Finger First Circuits Explained
The 2 simple fastest finger first indicator circuits presented here can be used for indicating which candidate was the first to press the answer button out of the 4 participating [＃]
The diagram presented below shows a simple circuit of a bird sound generator. All the parts are veryCellphone Controlled Dog Feeder Circuit
Cellphone Controlled Dog Feeder Circuit
In this post we are going to construct a circuit which will notify the user via SMS if the water supply to you area / home is initiated. It can [＃]
In this post we are going to construct a SMS based water pump controller with automatic shutdown of pump when no water flow through the pump is detected.
In this post we are going to construct a GSM based car security system using Arduino, which can lock and unlock car＊s ignition system and central lock by sending a [＃]
In this post we are going to construct a farmer friendly GSM pump motor controller circuit which couldturn on and off the irrigation system remotely from anywhere in the world [＃]
In this post, we are going to construct a laser security circuit which can send SMS alert to owner of the property or anyone else and activate loud alarm to [＃]
Archives for GSM Projects
LPG Leakage SMS Alert using MQ-135 每 Get Warning Message in your Cellphone
LPG Leakage SMS Alert using MQ-135 每 Get Warning Message in your Cellphone
In this article we are going to construct an GSM based LPG leakage SMS alert circuit using Arduino, which alerts the recipient via SMS and surrounding people via beep, when [＃]
In this article we are going to construct a GSM fire alert circuit system using Arduino and DHT11 sensor, which will alert the user via text message (SMS), regarding a [＃]
In this article we are going to learn, how to send and receive SMS using GSM modem which is controlled by Arduino. Let us see, what GSM modem is, how [＃]
Archives for Health Related
Electronic Acupuncture Circuit [Bio-Stimulation Circuit]
Electronic Acupuncture Circuit [Bio-Stimulation Circuit]
In this article we discuss how to build an electronic acupuncture circuit, also called bio-stimulation circuit., and use it for a possible treatment of many common body ailments, without any [＃]
In this post we discuss the construction of a DC UV germicidal lamp ballast circuit which can be used for driving any standard 20 watt UV lamp through a 12 [＃]
The ultrasonic hand sanitizer circuit detects the presence of human hand through reflected ultrasonic waves, and triggers a relay solenoid pump momentarily for dispensing the sanitizing liquid on the hands [＃]
Face masks have so far proved to be the most effective first line of defense against all contagious epidemics and pandemics. However, the biggest discomfort with face masks is the [＃]
The articles explains a digital thermometer circuit project that works without a battery. Instead of a battery the circuit utilizes a small solar cell and operates by deriving power from [＃]
In situations as critical as a COVID-19 pandemic, a doctor is the one personnel who is the most susceptible to getting infected by the virus from a patient. Therefore, doctors [＃]
Archives for Health Related
How Contactless Infrared Thermometers Work 每 How to Make One
How Contactless Infrared Thermometers Work 每 How to Make One
In this post we will learn the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit [＃]
In this article we will learn how to make a low cost yet fully automatic hand sanitizer dispenser circuit which will allow a touch-free or contactless dispensing of the sanitizing [＃]
A rather easy way of disinfecting humans and objects on a large scale and in public places could be by irradiating them with ultraviolet rays (UV-C), in special UV-C illuminated [＃]
The post explains the basic construction of an ozone generator apparatus for disinfecting a closed premise from dangerous viruses such as coronavirus. Ozone is a tested and an officially recommended [＃]
An LED based LightStim is a device used for rejuvenating facial skin by stimulating cell growth. Normally, RED LED is used in these devices since red light have been found [＃]
In this article we are going to construct an interesting project, which could potentially enhance your brain＊s capability. Let＊s learn how to make a TDCS brain simulator circuit. Overview This [＃]
Archives for Health Related
Hospital Room Call Bell Circuit for Alerting Nurse with a Button Press
Hospital Room Call Bell Circuit for Alerting Nurse with a Button Press
The post discusses a simple hospital room call bell circuit which can be installed in hospital patient rooms for allowing the patients to get a quick access to a medical [＃]
Transcutaneous electrical nerve stimulation (TENS) is a term typically referred to the use of nonpharmacologic or noninvasive kind of treatment for neutralizing superficial pains. How
In this article we comprehensively discuss a relatively accurate electronic heart rate sensor circuit processed by a few discretely wired opamp circuit stages, and subsequently we＊ll learn how this can [＃]
The article discusses a simple method through which large amounts of oxygen and hydrogen could be generated at home using an ordinary electrical setup, and very cheaply. Before we learn [＃]
In this article we learn how to build a simple room ionizer circuit for getting a clean, pollution free environment right inside our home. Introduction Have you ever thought or [＃]
Here we learn four best electronic thermometer circuits which can be universally used for measuring body temperatures or atmospheric room temperatures ranging from zero degrees to 50 degrees Celsius. In [＃]
Archives for Heater Controllers
How to Calculate Heatsinks
How to Calculate Heatsinks
Heatsinking is critical for power devices in circuits that are intended to maximize their performance. When heat from the power devices
A tap water heater circuit can be simply built by attaching an iron tube on the mouth of the tap or the faucet, and allow the iron pipe to pass [＃]
The post explains a simple op amp based thermocouple temperature meter circuit which can be used for measuring high temperatures in the range of 100 ∼C to 1000 ∼C, in [＃]
In this post we learn how to scavenge discarded microwave oven parts for making a useful soldering iron heat controller circuit which can then be used for maintaining controlled heat [＃]
The post explains how to make small homemade induction heater circuit for laboratories and shops for carrying out small scale heating jobs such as melting ornaments, or boiling small quantity [＃]
The article explains a step by step tutorial regarding designing your own homemade basic induction heater circuit, which can be also used as an induction cooktop. Basic Induction Heater Concept [＃]
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Archives for Heater Controllers
Free Energy from Induction Cooktop
Free Energy from Induction Cooktop
The idea of acquiring free energy from induction cookwares using an external bifilar coil was suggested by one of the keen enthusiasts and a regular visitor of this blog. Let＊s [＃]
In this article we are going to construct a couple of simple Arduino based automatic temperature controlled dc fan circuits which will switch ON a fan or any other gadgets [＃]
A programmable sequential timer along with a triac dimmer is configured for making this kiln temperature controller circuit, further details are explained in the following article. The idea was requested [＃]
In this article we learn how to make a simple and accurate autoclave heater controller circuit with timer. The idea was requested by Mr. Rajjab. Circuit Objectives and Requirements This [＃]
The post discusses a small induction heater circuit for school project and exhibitions, using a very ordinary IC 555 astable PWM circuit. The idea was requested by Mr. Anthony Technical [＃]
Controlling a heavy electrical appliance with push buttons can be extremely convenient since it allows a solid state approach for operating the parameter both ways up and down by mere [＃]
Archives for Heater Controllers
Make this Geyser Water Heater Timer Circuit with Automatic Switch OFF
Make this Geyser Water Heater Timer Circuit with Automatic Switch OFF
In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after [＃]
The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic [＃]
The circuit identifies and detects the temperature difference between two sensors and activates a relay when the temperature is not identical on these differently positioned sensors. By: Manisha Patel It＊ll [＃]
The 4 LED temperature indicator circuit discussed here is very useful for getting a visual information regarding the state of temperature which is to be monitored. Circuit Operation In the [＃]
This fan speed controller works by sensing the temperature of the engine and is accordingly used for the triggering. As the temperature increases so does the speed of the fan [＃]
The post explains a simple temperature to voltage converter circuit using IC LM317. The idea was requested by one of the dedicated members of this blog. Technical Specifications I have [＃]
Archives for Heater Controllers
Solar Powered Induction Heater Circuit
Solar Powered Induction Heater Circuit
In this post we discuss an induction cooker/heater design which may be powered from a solar panel voltage. The idea was requested by Mr. Vamshee Technical Specifications My name is [＃]
In this post we learn how to build a energy efficient soldering iron station circuit for achieving maximum power saving from the unit, by ensuring that it is automatically switched [＃]
In this post we comprehensively discuss how to build a high power 1000 watt induction heater circuit using IGBTs which are considered to be the most versatile and powerful switching [＃]
In this post we learn 2 easy to build induction heater circuits which work with high frequency magnetic induction principles for generating substantial magnitude of heat over a small specified [＃]
The
The following post explains a programmable sequential timer with controller circuit which may be used for automatically controlling a homemade pellet burner/boiler system. The circuit was requested by Mr. Vasilis. [＃]
Archives for Heater Controllers
4 Universal Electronic Thermometer Circuits
4 Universal Electronic Thermometer Circuits
Here we learn four best electronic thermometer circuits which can be universally used for measuring body temperatures or atmospheric room temperatures ranging from zero degrees to 50 degrees Celsius. In [＃]
To make a furnace temperature meter, the sensing element is required to be particularly robust so that it is able to withstand the extreme high temperatures generally developed in furnaces [＃]
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Archives for Home Electrical Circuits
Letter Box Open Indicator Circuit
Letter Box Open Indicator Circuit
In this post we learn how to build a letter box open indicator circuit, which indicates through an LED if the letter box had been opened either by the postman, [＃]
The electronic 2 tone door bell circuit is designed around the popular IC 555. The IC 555 is extensively applied in numerous varieties of timers and also as a basic [＃]
A Residual Current Circuit Breaker (RCCB) or a ground fault circuit interrupter (GFCI), is a form of circuit breaker which will shut down mains AC power as soon as it [＃]
The post explains the construction details of a triac based push-button dimmer circuit which can be used for controlling incandescent, and fluorescent lamp brightness through push-button pressing. Another feature of [＃]
In this article we discuss the formula and techniques of configuring RC circuit networks for controlling the arcing across relay contacts while switching heavy inductive loads. Arc suppression An arc [＃]
The discussed circuit is a solid state AC to DC voltage converter that will convert any AC input between 85 V and 250 V into a constant 310 V DC [＃]
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Archives for Home Electrical Circuits
Neon Lamps 每 Working and Application Circuits
Neon Lamps 每 Working and Application Circuits
A neon lamp is a glow lamp made up of a glass cover, fixed with a pair of segregated electrodes and containing an inert gas (neon or argon). The main [＃]
The explained Ultrasonic Pest repeller is a device that generates ultrasound or a very high frequency noise in the range of over 20 kHz which becomes useful for repelling or [＃]
Repairing a mosquito bat is a process in which a malfunctioning mosquito bat is checked for faults using meters and restored to its earlier working condition. This post provides some [＃]
This circuit is designed to sense the whistles from a pressure cooker and count the number over a digital display. The system relieves the user from the stress of constantly [＃]
The clap switch circuits explained here will toggle a connected load ON and OFF in response to alternate clap sounds? Here we discuss 4 unique and simple designs which can [＃]
Voltage stabilizer in the range of kVAs are powerful AC voltage stabilizer units specially designed for controlling and stabilizing high voltage fluctuations, for high power electrical equipment. In this article [＃]
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Archives for Home Electrical Circuits
Remote Control Tester Circuit
Remote Control Tester Circuit
We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or [＃]
In this article we learn how to design and build a solid state contactor circuit using triacs for operating heavy duty loads like submersible borewell pump motors with high reliability, [＃]
This simple homemade mosquito swatter bat neither requires a circuit nor a battery for the operation. The entire design works using a single high voltage capacitor and through quick charging [＃]
A crank flashlight basically works by hand cranking a permanent magnet motor, which generates electricity for illuminating the attached LEDs. Motor Becomes a Generator Normally, a permanent magnet motor is [＃]
Within the next few years we may find all conventional capacitor-start type of ceiling fans getting replaced with BLDC ceiling fan circuits, since the concept allows the operation to be [＃]
In this post we diagnose a PIR activated message player circuit, which was sent by Mr. Norman Kelley one of the dedicated followers of this blog for improvements. Let＊s learn [＃]
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Archives for Home Electrical Circuits
Surge Arrestor Circuit with Measuring Facility
Surge Arrestor Circuit with Measuring Facility
In this post we learn about a simple surge voltage protector circuit using a fuse and a triac crowbar circuit and also learn the method to record and measure the [＃]
The post explains a simple homemade electric cloth dryer circuit using iron heater coil assembly which can be used for drying clothes at home during rainy season or overcast conditions. [＃]
The article explains a simple illuminated crosswalk safety light circuit for ensuring a safe walking passage for the user amidst heavy traffic. The idea was requested by Mr. John. Circuit [＃]
A triac phase control using a PWM circuit can be useful only if it＊s implemented using a time-proportional format, otherwise the response could be haphazard and inefficient. In a few [＃]
In this post we learn how to make a sunrise/sunset simulator circuit using LEDs and just a couple of BJTs. The idea was requested by Mr. Jerry Circuit Objectives and [＃]
As the name suggests, to build this simple natural mosquito repellent circuit you will just require a high watt resistor, a few drops of lemon eucalyptus oil andSimple Refrigerator Protector Circuit
Simple Refrigerator Protector Circuit
This simple refrigerator protector circuit is actually a delay ON timer circuit which makes sure that whenever a power failure occurs or in case abrupt power fluctuations take place, the [＃]
The article discusses a simple remote controlled submersible pump circuit which could be simply configured using any standard 2 channel 433MHz remote control modules. The idea was requested by Mr. [＃]
In this article we are going to build a smart automatic ON/OFF switch using Arduino, which can turn on or off gadgets automatically by sensing the presence of human nearby [＃]
The post explains how to make a high power 100V to 220V H-bridge mains voltage stabilizer circuit using automatic PWM control. The idea was requested by Mr. Sajjad. Circuit Objectives [＃]
MOVs or metal oxide varistors are devices designed for controlling mains switch ON surges in electrical and electronic circuits. Selecting an MOV for a particular electronic circuit might require some [＃]
A small transformerless welding machine circuit can be built using a few high voltage, high value capacitors and a rectifier diode, the following article explains more on it. The idea [＃]
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Archives for Home Electrical Circuits
Push Button Fan Regulator Circuit with Display
Push Button Fan Regulator Circuit with Display
A very interesting push button operated fan regulator circuit with LED display is explained in the following article, which can be built and installed at home for the suggested purpose. [＃]
An automatic voltage regulator circuit is quite well used where Voltage supply is only 120VAC. Many gadgets can operate good at 220V Ac that is why Voltage regulation is needed. [＃]
The thermistor name has been devised as a short form for the ※thermally sensitive resistor§. The full form of the thermistor provides the general and the detailed idea of the [＃]
The post explains how to make an electronic stethoscope amplifier circuit for enabling a loud audible reproduction of the heart beats which is being diagnosed. The article also reveals how [＃]
In this post we study a simple moisture sensor circuit which enables an evaporative air cooler to automatically restore the wetness level of its evaporative pad by detecting its moisture [＃]
In this post we learn about a simple yet sophisticated automatic emergency light circuit which can be considered ※smart§ due to the involved advanced features and an inexpensive design. The [＃]
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Archives for Home Electrical Circuits
Heater Controller Circuit Using Push-Buttons
Heater Controller Circuit Using Push-Buttons
Controlling a heavy electrical appliance with push buttons can be extremely convenient since it allows a solid state approach for operating the parameter both ways up and down by mere [＃]
In this post we learn how to make a simple washing machine using a single motor and a cam shaft mechanism, cheaply. The Concept Washing machines are costly devices which [＃]
The post discusses a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. [＃]
The post explains a circuit idea which can be used as a power monitor and control system for ensuring that only the specified amount of watts is allowed to enter [＃]
The post discusses a simple circuit design which ensures a perfectly stabilized 220 V or 120 V mains voltage across the connected load, without using relays or transformers, rather by [＃]
The post explains a twin generator network system to be used for two separate houses during power failure and through automatic changeover.The idea was suggested by Mr. Ahmad. The Circuit [＃]
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Archives for Home Electrical Circuits
Solar Insect Killer Circuit for Protecting Crops in Farms
Solar Insect Killer Circuit for Protecting Crops in Farms
The insect killer circuit presented here is designed to attract insects during night, and electrocute them through a high voltage mesh trap. The unit can be installed in farms for [＃]
The post explains a simple to build ultrasonic insect repellent circuit which can be installed in farms and used by the farmers for driving away all sorts of insects, bugs, [＃]
The post explains a simple mosquito electrocution net, or mesh circuit which can be easily built and installed on a home window for blocking and killing an in-surge of mosquitoes. [＃]
The article explains a solid state switch-mode mains voltage stabilizer circuit without relays, using a ferrite core boost converter and a couple of half-bridge mosfet driver circuits. The idea was [＃]
The article discusses a simple infrared controlled fan regulator or dimmer circuit using ordinary parts such as a 4017 IC and a 555 IC. Circuit Operation Referring to the shown [＃]
The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic [＃]
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Archives for Home Electrical Circuits
How to Test a MOV (Metal Oxide Varistor) Surge Protector Device
How to Test a MOV (Metal Oxide Varistor) Surge Protector Device
The article discusses a set up for testing MOVs which are special devices specified for absorbing instantaneous high surge currents that may accidentally occur in our mains electrical lines. The [＃]
The post explains a simple automatic PIR controlled fan circuit for school college use, which responds and switches ON only in the presence of a human (students) in the classroom. [＃]
The post explains a simple water heater alarm circuit which may be used as a safety device for getting indications regarding the switched position of a water heater or a [＃]
In this article we look into a simple 220V mains PWM controlled fan or light regulator circuit which does not require a microcontroller or costly triac drivers for the intended [＃]
The post explains a step by step construction of a ※helping third hand§ unit for assisting PCB soldering jobs in order to make the job much hassle free. The gadget [＃]
The post explains a simple 20 watt fluorescent ballast circuit using a single chip FAN7711 from Fairchild semiconductor. The proposed mains 220V operated, 20 watt fluorescent ballast circuit is built [＃]
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Archives for Home Electrical Circuits
Single IC Dimmable Ballast Circuit
Single IC Dimmable Ballast Circuit
The post explains a simple 25 to 36 watt ballast circuit which can used for all fluorescent tube applications within the allocated range. The circuit of the proposed electronic fluorescent [＃]
The article relates a simple automatic infrared controlled staircase lamp circuit which switches ON only during the presence of a passer-by and switches OFF automatically after a predetermined delay once [＃]
We are all familiar with thundering and lightning during stormy weathers and know how the effect is responsible of producing a lot of ozone and negative ions in the atmosphere. [＃]
The post presents a simple Li-ion emergency light circuit with over charge and low battery cut off features. The Circuit was requested by Mr. Saeed Abu and Y0f4N. Technical Requirement [＃]
Mosquitoes are a big menace to humankind and these are present in every corner of the world. A cool way of avenging yourself could by eliminating these ※devils§ through electrocution. [＃]
The post discusses a simple infrared based proximity sensor circuit which is implemented to study birds and their behavior, by installing the circuit beside artificially made bird nests. The idea [＃]
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Archives for Home Electrical Circuits
10/12 watt LED Lamp with 12 V Adapter
10/12 watt LED Lamp with 12 V Adapter
The post explains the construction of a homemade 10 watt LED lamp using ready made 12 V SMPS adapter. The project was successfully built by Mr. Debabrata Mandal. In many [＃]
The post investigates a circuit which can be used for negating or neutralizing the everlasting harmful low frequency EMFs created from our mains power line in our homes. The idea [＃]
In this post we discuss an enhanced transformerles power supply circuit design which consists a well stabilized and regulated DC stage along with a relay driver stage which operates through [＃]
An interesting electronic parasite zapper circuit shown below was successfully built and tested by my friend Mr. Steven. Let＊s learn more about the proposed circuit. The Circuit Idea Email received [＃]
The post describes an easy method of making an ultra violet water purifier circuit using ordinary electronic components. How UV is Used as Germicidal Ultraviolet
The discussed 2 simple IC 555 based emergency lamp system employs just a single IC 555 and yet is able to switch more than 20 LEDs directly, it will illuminate [＃]
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Archives for Home Electrical Circuits
Automatic Voltage Regulator (AVR) Analyzer
Automatic Voltage Regulator (AVR) Analyzer
The post below discusses an automatic voltage analyzer circuit which can be used for understanding and verifying the output conditions of an AVR. The idea was requested by Mr. Abu-Hafss. [＃]
A Negative Temperature Coefficient (NTC) thermistor is a device which suppresses switch ON current surge by resisting current through a temporary increase in its body temperature. This increase in temperature [＃]
The following circuit of a
The circuit given below describes a time delay relay system which is used for keeping a hot air blower working under a specifically programmed timing sequence. The idea was requested [＃]
The
The article explains a simple automatic doorCell Phone Emergency Charger Pack using Ni-Cd Batteries
Cell Phone Emergency Charger Pack using Ni-Cd Batteries
In this post
The increased number of complaints from the readers regarding burning LEDs associated with my earlier posted transformerless 1 watt LED driver circuit, compelled me to solve the issue once for [＃]
In this article we discuss how to make a cheap yet effective mains operated AC overload and over-current protector circuit using very ordinary discrete components. Introduction I have published a [＃]
The article discusses a simple method through which large amounts of oxygen and hydrogen could be generated at home using an ordinary electrical setup, and very cheaply. Before we learn [＃]
The following LED emergency light with battery over charge protection feature circuit was designed by me in response to the request sent by PP. Main Features The article describes an [＃]
In this article we learn how to build a simple room ionizer circuit for getting a clean, pollution free environment right inside our home. Introduction Have you ever thought or [＃]
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Archives for Home Electrical Circuits
SMD LED based Emergency Lamp Circuit
SMD LED based Emergency Lamp Circuit
An emergency lamp using SMD LEDs is able to generate illuminations with extreme brightness due to the high efficiency of the SMD type LEDs. Moreover, SMD LEDs also ensure the [＃]
This article describes a simple circuit which can be used for pulsing an electromagnet. The IC 555 once again becomes the central part of the circuit. Let＊s learn the making [＃]
In this post we discuss about a simple electronic high frequency mosquito repellent circuit, which is supposed to drive away mosquitoes through its tuned high frequency pulses. Introduction Mosquitoes can [＃]
In this post we learn through two examples how to build a simple light dimmer switch circuit for controlling light intensity with pot, using the principle of triac phase chopping. [＃]
Here we try to investigate a few enhanced triac based phase controller circuits which can be recommended for controlling or operating inductive loads like transformers and AC motors much safely [＃]
In this write up we will discuss how to make a simple clap operated stairway light switch circuit for enabling a brief switch ON of the lights while the user [＃]
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Archives for Home Electrical Circuits
How to Make an Incubator Timer Optimizer Circuit
How to Make an Incubator Timer Optimizer Circuit
A timer circuit design which could be used for turning the position of the eggs in an incubator between predetermined intervals of time was requested to me by one of [＃]
In this article we will try to understand the making of a 1500 watt simple heater controller circuit at 25 amp current rate using an ordinary triac based dimmer switch [＃]
In this post we will unravel a few homemade crude 220V to 110V converter circuits options which will enable to user the user use it for operating small gadgets with [＃]
A few of the interesting and useful hobby electronic circuit diagrams already published in this blog have been selected and compiled here for quick reference and understanding. Magnetic Field Detector [＃]
The article presented here explains a very simple closed loop AC motor speed controller circuit that may be used for controlling single phase AC motor speeds. The circuit is very [＃]
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Archives for Home Electrical Circuits
Mains AC Short Circuit Breaker/Protector 每 Electronic MCB
Mains AC Short Circuit Breaker/Protector 每 Electronic MCB
In this post we will try to understand the making of a simple 220 V, 120 V AC mains short circuit breaker using an SCR and a triac combination, (researched [＃]
An electronic incubator thermostat circuit shown in this article is not only simple to build but is also easy to set and acquire exact tripping points at various different set [＃]
In this article we learn how to make a 2 relay or two stage voltage stabilizer circuit for controlling and regulating 220V or 120V mains voltages through a simple circuit. [＃]
In this post we will discuss a relatively simple triac controlled automatic mains voltage stabilizer circuit, which uses logic ICs and a few triacs for controlling the mains voltage levels. [＃]
Interested to make an accurate electronic thermostat for your refrigerator? The 3 unique solid state thermostat designs described in this article will surprise you with their ※cool§ performances. Design#1: Introduction [＃]
The proposed 40 watt electronic ballast is designed to illuminate any 40 watt fluorescent tube, with high efficiency, and optimal brightness. The PCB layout of the proposed electronic fluorescent ballast [＃]
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Archives for Home Electrical Circuits
20 Watt Fluorescent Tube Circuit with 12V Battery Operation
20 Watt Fluorescent Tube Circuit with 12V Battery Operation
This simple 20 watt home tube light circuit will work with any 12V battery and uses very few components yet is able to produce a reasonable amount of white light. [＃]
The article describes a 10 simple automatic emergency light circuits using high bright LEDs. This circuit can be used during power failures and outdoors where any other source of power [＃]
Voltage spikes
In this post we learn a straightforward procedure for building a simple refrigerator using Peltier device for generating the required cooling effect inside the fridge. How Peltier Device Works We [＃]
Here we will study theIncubator Using Arduino with Automatic Temperature and Humidity control
Incubator Using Arduino with Automatic Temperature and Humidity control
In this post we are going to construct an incubator using Arduino which can self-regulate its temperature and humidity. This project was suggested by Mr. Imran yousaf who is an [＃]
The post discusses a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. [＃]
In this post we learn a reverse forward timer circuit for operating an incubator motor mechanism with a preferred set of movements. The idea was requested by Mr. Anwar Technical [＃]
The
A timer circuit design which could be used for turning the position of the eggs in an incubator between predetermined intervals of time was requested to me by one of [＃]
An electronic incubator thermostat circuit shown in this article is not only simple to build but is also easy to set and acquire exact tripping points at various different set [＃]
Archives for Industrial Electronics
OBD2 Connector Pinout, Datasheet
OBD2 Connector Pinout, Datasheet
The DB9 to OBD-II adapter cable is an easy to use adapter that enables the EasySYNC range of CANbus products to fit compatibly with OBD-II interface connectors, typically utilized in [＃]
The post explains a simple op amp based thermocouple temperature meter circuit which can be used for measuring high temperatures in the range of 100 ∼C to 1000 ∼C, in [＃]
The post explains a simple line laser controlled motor driver circuit, which works by responding to a precision horizontal laser line, generated from a line laser level device, and automatically [＃]
The article explains a simple line follower vehicle circuit, also known as line tracker vehicle, using just a couple of op amps and a few other components, without using complex [＃]
In a triac phase control circuit, the triac is triggered ON only for specific portions of the AC half cycles, causing the load to operate only for that period of [＃]
In this article we are going to learn many interesting SCR application circuits and also learn the main features and properties of an SCR also called a thyristor device. What＊s [＃]
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Archives for Industrial Electronics
Bidirectional Switch
Bidirectional Switch
In this post we learn about MOSFET bidirectional power switches, which can be used for operating a load across two points bidirectionally. This is simply done by connecting two N-channel, [＃]
In this article we learn how to design and build a solid state contactor circuit using triacs for operating heavy duty loads like submersible borewell pump motors with high reliability, [＃]
In this post we study regarding what is corona effect and how to make a corona effect generator circuit at home using a CDI coil and a tesla coil configuration. [＃]
A simple tea, coffee vending machine circuit idea is explained here which allows a customer to access the beverage with a press of a button and by inserting a genuine [＃]
The post explains a simple mains to generator automatic transfer switch (ATS) which features an initial petrol start which switches to an LPG gas supply via fuel valve changeover switches. [＃]
The post explains a remote controlled automatic transfer switch for enabling an automatic grid to generator changeover action from a specified distance. The idea was requested by Mr. odudu johnson. [＃]
Archives for Industrial Electronics
Atomizer Circuit for E Cigarettes
Atomizer Circuit for E Cigarettes
The post details a simple transistorized PWM controlled atomizer circuit for E-Cigarettes which may be used for controlling the filament heat levels of an atomizer. The idea was requested by [＃]
The article discusses an automatic door mechanism circuit that responds to the ambient light conditions by keeping the door open during day time and closed during night. Here the application [＃]
The article discusses a simple overload cut off circuit for safeguarding heavy mains operated machines such as a lathe machine. The idea was requested by Mr. Howard Dean. Technical Specifications [＃]
The post explains a high energy surge suppressor circuit using high capacity industrial MOVs for suppressing high current mains surges in industrial electrical lines. The Circuit Problem: I＊ve been reading [＃]
In this article we comprehensively discuss a relatively accurate electronic heart rate sensor circuit processed by a few discretely wired opamp circuit stages, and subsequently we＊ll learn how this can [＃]
The post explains a simple PWM controlled automatic turnstile or door circuit featuring an automatic open/close action via a photo-interrupter stage. The idea was requested by Mr. Bruce Clark. Technical [＃]
Archives for Industrial Electronics
PWM Air Blower Controller Circuit for Biomass Cook Stoves
PWM Air Blower Controller Circuit for Biomass Cook Stoves
The article details a PWM speed controller circuit for a fan air blower system to be used in Biomass cook stoves. The circuit also includes an uninterrupted automatic battery back-up [＃]
The post explains a smart mains fire hazard protector circuit which can be used for preventing mains grid transformers from over heating and causing sparks or even burning due to [＃]
One of the best substitutes for traditional light transformer for halogen bulbs is the electronic halogen transformer. It can also be used with non-halogen bulbs and any other form of [＃]
If you are looking for an option to replace conventional welding transformer, the welding inverter is the best choice. Welding inverter is handy and runs on DC current. The current [＃]
A simple high voltage generator circuit is explained here which can be used to step up any DC level to about 20 times or depending upon the transformer secondary rating. [＃]
The post explains a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device. 10 Step Relay Selector Switch Circuit
10 Step Relay Selector Switch Circuit
The post explains a simple yet
The article discusses a simple infrared (IR) remote control circuit which is configured for operating a DC motor in response to the
In this post we learn a couple simple circuits which when installed will prevent single phase occurrence in a 3 phase system. Introduction We all know that for
The following conversation was made by Mr.Tom and me regarding the circuit idea of a pyro-iginition system. I was asked to design the particular circuit idea by Mr.Tom in Fiverr.com. [＃]
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Archives for Infrared (IR)
Intruder Alarm Circuit using Photodiodes
Intruder Alarm Circuit using Photodiodes
The post explains a simple infrared intruder alarm circuit using an IR transmitter and an IR receiver module. The transmitter and the receiver photo diodes used in the two modules [＃]
In this post we will learn the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit [＃]
The PIR burglar alarm explained here will detect a human intruder within the stipulated range and sound an alarm. Thus, the system could be effectively use for detecting trespassing, theft, [＃]
Electronic signals have been quite successfully sent for decades through standard ※hard -wire§ connections, or by using radio links of different kinds which had many disadvantages. On the other hand [＃]
Photodiodes and phototransistors are semiconductor devices which have their p-n semiconductor junction exposed to light through a transparent cover, so that external light can react and force an electrical conduction [＃]
A PIR motion sensor alarm is a device which detects the infrared radiation from a moving human body and triggers an an audible alarm. The post discuses 4 simple motion [＃]
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Archives for Infrared (IR)
Remote Control Tester Circuit
Remote Control Tester Circuit
We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or [＃]
In this post we are going to explore the datasheet of PIR or Pyroelectric Infrared Radial Sensor HC-SR501. We will understand for what purpose PIR sensor is used? Its basic [＃]
The post explains a simple circuit using Passive Infrared or PIR for making an automatic solar LED lamp which can be used for illuminating your home automatically at sunset, and [＃]
In this post we will learn how to increase or extend the range of an ordinary infra red or IR remote control through a 433MHz RF remote control system. IR [＃]
An IR proximity sensor is a device which detects the presence of an object or a human when it is within a predetermined range from the sensor, through reflected infrared [＃]
The TSOP17XX series ICs are special infrared sensor devices built for responding to specific range of infrared frequencies and convert it into an electrical pulsed output. It thus features a [＃]
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Archives for Infrared (IR)
Make this Line Follower Robot for Science Fair Project
Make this Line Follower Robot for Science Fair Project
In this post we learn how to build a line follower robot circuit using Arduino, which will run over a specifically drawn line layout and will faithfully follow it as [＃]
In this post we learn how to correctly connect an IR photodiode in circuits such as a proximity sensor circuit. The explanation is presented in the form a discussion between [＃]
The article discusses a few highly advanced contactles sensors such as infrared sensor, temperature sensor, humidity sensor, light sensor which can be used for crucial and sensitive industrial applications, and [＃]
In this post we are going to construct LED strip controller circuit using Arduino, which can turn ON/OFF and decrease/increase brightness of LEDs using ordinary IR (Infrared) remote. What is [＃]
In this post we are going to construct a customizable Arduino based IR (infrared) based wireless remote control switch, which consists of IR remote and a receiver, you may modify [＃]
A very simple touch free faucet circuit or touch free automatic tap circuit can be built using as little as an IC 555 and a few passive components, in order [＃]
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Archives for Infrared (IR)
433 MHz Remote Infrared Wireless Alarm
433 MHz Remote Infrared Wireless Alarm
A simple infrared wireless alarm circuit can be built using an 433 MHz RF remote control unit a TSOP based IR sensor, let＊s learn the procedures in detail. In a [＃]
The post explains a simple obstacle avoiding robot circuit without microcontroller and without using special motor driver circuits or ICs. The idea was requested by Mr. Faiyyaz The Design Basically [＃]
In this design a solenoid is operated using an IR remote control, which in turn toggles the fish feeder mechanism. In this article we learn how to make a simple [＃]
TSOP17XX series devices are advanced infrared sensors having a specified center frequency of operation which makes their detection extremely reliable and foolproof. In this post we learn how to connect [＃]
The article discusses a remote controlled wireless home security circuit using which enables the detection of a possible intrusion way in advance depending on how and where the remote sensors [＃]
The post explains a method which can be probably used for enhancing a passive infrared sensor ability to detect even a static or stationery human presence. This feature is normally [＃]
Archives for Infrared (IR)
Automatic Sliding Gate Controller Circuit
Automatic Sliding Gate Controller Circuit
In this post we investigate a circuit, designed for implementing an automatic sliding gate or door action, and includes a set of features as specified in the request. The idea [＃]
The article discusses a simple infrared controlled fan regulator or dimmer circuit using ordinary parts such as a 4017 IC and a 555 IC. Circuit Operation Referring to the shown [＃]
In this article we learn about a simple infrared remote controlled door lock circuit which can be used for securely locking doors through unique foolproof IR frequencies. The proposed infrared [＃]
A simple, cheap yet highly effective infrared remote control safe lock circuit can be studied in the following post. Using IC LM567 The LM567 IC is one of my favorites [＃]
The article is a continuation of the earlier post where we tried to find a solution for creating unique infrared IDs for trains in a model locomotive system. Here we [＃]
The article discusses a model locomotive controller circuit using uniquely set IR beams for different locomotives allowing unique identification signals and controls for the engines. The idea was requested by [＃]
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Archives for Infrared (IR)
Heart Rate Monitor Circuit
Heart Rate Monitor Circuit
In this article we comprehensively discuss a relatively accurate electronic heart rate sensor circuit processed by a few discretely wired opamp circuit stages, and subsequently we＊ll learn how this can [＃]
Here we discuss a an emergency lamp circuit which includes an infrared remote operated brightness control feature. The
Pets and kids (under 4) have one thing in common, they are curious by nature and love venturing into unknown zones ending up in some sort of mess or trouble. [＃]
The post discusses a simple IR remote control circuit which can be used for controlling many appliances independently through a single transmitter handset. The idea employs ordinary components like IC [＃]
The article relates a simple automatic infrared controlled staircase lamp circuit which switches ON only during the presence of a passer-by and switches OFF automatically after a predetermined delay once [＃]
The TSOP17XX series of ICs are infrared sensor devices designed for sensing infrared frequencies only with a specific range of modulated frequency, and interpreting them into a proportionate magnitude of [＃]
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Archives for Infrared (IR)
Make this TV Remote Jammer Circuit
Make this TV Remote Jammer Circuit
The proposed TV remote jammer circuit can be used for freezing and scrambling all TV remotes under the
The article discusses a simple infrared (IR) remote control circuit which is configured for operating a DC motor in response to the
The proposed infrared or IR remote control circuit can be used to operate an appliance ON/OFF through any standard TV remote control handset. In this write up we discuss a [＃]
An infrared flood light is a circuit that creates an illumination over a wide range of area using infrared frequency. This infrared illuminated area can be perfectly visualized through specialized [＃]
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Archives for Inverter Circuits
Inverter Circuit with Feedback Control
Inverter Circuit with Feedback Control
In this article we will learn a couple of inverter circuits featuring an automatic feedback control for ensuring that the output does not exceed the normal specified AC output level, [＃]
The cost and quantity of parts necessary to develop the proposed 250 watt sine wave power inverter is actually much less compared to a noisy square wave switching-type inverter circuit. [＃]
In this post we discuss a few miniature inverter circuits that can convert 1.5 V to 220 V or 3 V to 220 V or 6 V to 220 V. [＃]
In this post we discuss the construction of a DC UV germicidal lamp ballast circuit which can be used for driving any standard 20 watt UV lamp through a 12 [＃]
A sinewave inverter using class-D amplifier functions by converting a small sinewave input frequency into equivalent sine PWMs, which is finally processed by an H-bridge BJT driver for generating the [＃]
In this post we learn about the making of a simple online uninterruptible power supply (UPS) which guarantees a seamless transfer of AC mains supply to inverter mains supply for [＃]
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Archives for Inverter Circuits
Easy H-Bridge MOSFET Driver Module for Inverters and Motors
Easy H-Bridge MOSFET Driver Module for Inverters and Motors
If you are wondering if there＊s an easy way to implement an H-bridge driver circuit without using the complex bootstrapping stage, the following idea will precisely solve your query. In [＃]
The UPS detailed in this article can provide a power output of 50 watts consistently, at 110 volts with a frequency of 60 Hz. The output is fundamentally a sine [＃]
In this post we will comprehensively discuss how to build a 500 watt inverter circuit with an integrated automatic battery charger stage. Further in the article we will also learn [＃]
Calculating ferrite transformer is a process in which engineers evaluate the various winding specifications, and core dimension of the transformer, using ferrite as the core material. This helps them to [＃]
An Arduino three phase inverter is a circuit which produces a 3 phase AC output through a programmed Arduino based oscillator. In this post we learn how to make a [＃]
I am sure you might have often wondered how to accomplish the correct way of optimizing and calculating a modified square wave such that it produced almost an identical replication [＃]
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Archives for Inverter Circuits
Convert Audio Amplifier into Pure Sinewave Inverter
Convert Audio Amplifier into Pure Sinewave Inverter
If you are not too keen in understanding the deep technical aspects of a true sine wave power inverter, yet want to build it within a couple of hours, then [＃]
When an inverter with square wave AC output is modified to generate a crude sinewave AC output, it is called a modified sine wave inverter. The following article presents 7 [＃]
These 7 inverter circuits may look simple with their designs, but are able to produce a reasonably high power output and an efficiency of around 75%. Learn how to build [＃]
A simple yet useful Microprocessor based Arduino full-bridge inverter circuit can be built by programming an Arduino board with SPWM and by integrating a few mosfets with in H-bridge topology, [＃]
A vey basic yet reasonably efficient 1500W PWM based sinewwave inverter circuit can be studied under this post. The design utilizes very ordinary parts to accomplish a powerful SPWM type [＃]
As the name suggests, an inverter circuit that converts a DC input into AC without depending on an inductor or a transformer is called a transformerless inverter. Since an inductor [＃]
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Archives for Inverter Circuits
Inverter Voltage Drop Issue 每 How to Solve
Inverter Voltage Drop Issue 每 How to Solve
Whenever PWM is employed in an inverter for enabling a sine wave output, inverter voltage drop becomes a major issue, especially if the parameters are not calculated correctly. In this [＃]
This article explains a simple pure sine wave inverter circuit using Arduino, which could be upgraded to achieve any desired power output as per the user＊s preference Circuit Operation In [＃]
In this post we try to investigate how to design a SG3525 full bridge inverter circuit by applying an external bootstrap circuit in the design. The idea was requested by [＃]
The post explains a simple
In this post we are going to construct a modified sine wave inverter using Arduino. We will explore the methodology of the proposed sine wave inverter and finally, we will [＃]
The post explains a simple method of automatically switching ON an inverter fan whenever the unit is operating in the charging mode or inverter mode, in order to ensure optimum [＃]
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Archives for Inverter Circuits
6 Best IC 555 Inverter Circuits Explored
6 Best IC 555 Inverter Circuits Explored
The 6 unique designs below explains us how an ordinary single IC 555 astable multivibrator could be used effectively to make an inverter without involving complex stages. No doubt IC [＃]
The post explains a 3 powerful yet simple sine wave 12V inverter circuits using a single IC SG 3525. The first circuit is equipped with a low battery detection and [＃]
When a DC to AC inverter is operated through a solar panel, it is called a solar inverter. The solar panel power is either directly used for operating the inverter [＃]
An efficient solid state single pole double throw or SPDT switch can be built using triacs for replacing a mechanical SPDT. The post details a simple solid state triac SPDT [＃]
In this brief tutorial we learn how to design a customized UPS circuit at home using ordinary components such as a few NAND ICs and a some relays. What is [＃]
The article explains a generator/UPS/Battery relay changeover circuit for implementing a customized optimization for a generator, UPS, battery power network, in order to enhance the operational efficiency of the system. [＃]
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Interim pages omitted ＃
Archives for Inverter Circuits
Synchronized 4kva Stackable Inverter
Synchronized 4kva Stackable Inverter
This first part of the proposed 4kva synchronized stackable inverter circuit discusses how to implement the crucial automatic synchronization across the 4 inverters with regards to frequency, phase and voltage [＃]
This article explains an interesting topic, how to convert your computer UPS into home UPS. If you own a desktop computer, you may have a UPS that can power your [＃]
The proposed sinewave inverter UPS circuit is built using PIC16F72 microcontroller, some passive electronic components and associated power devices. Data provided by: Mr. hisham bahaa-aldeen Main Features: The main technical [＃]
In this article we learn how to make a multilevel (5 step) cascaded inverter circuit using a very simple concept developed by me. Let＊s learn more regarding the details. The [＃]
The post explains 2 simple concepts for making solid-state triac based Inverter/mains AC changeover circuit, the idea was requested by Music girl. Technical Specifications I would like to replace the [＃]
The post explains a simple ATX UPS circuit with an automatic charger for enabling an automatic changeover from mains to battery power during mains failures and for ensuring an uninterruptible [＃]
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Interim pages omitted ＃
Archives for Inverter Circuits
12V LED Backpack Power Supply Circuit
12V LED Backpack Power Supply Circuit
In this article we learn to make a simple 12v LED backpack power supply circuit for powering a 36watt LED lamp, which includes appropriately wired integrated sockets for enabling the [＃]
In this post we learn how to trick an inverter＊s ※no load auto-shutdown§ feature through an external circuit so that the inverter may be kept running even with minor, below [＃]
The post explains a simple mains to generator automatic transfer switch (ATS) which features an initial petrol start which switches to an LPG gas supply via fuel valve changeover switches. [＃]
The post explains a remote controlled automatic transfer switch for enabling an automatic grid to generator changeover action from a specified distance. The idea was requested by Mr. odudu johnson. [＃]
The post discusses a relay cut-off circuit which may be included in inverters to ensures that under a no load at the output the condition is quickly detected and the [＃]
In this post we will learn how to generate electricity from our shoe while walking. This electricity can be simultaneously used for charging a cellphone battery. In a few of [＃]
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Interim pages omitted ＃
Archives for Inverter Circuits
PWM Inverter Using IC TL494 Circuit
PWM Inverter Using IC TL494 Circuit
A very simple yet highly sophisticated modified sine wave inverter circuit is presented in the following post. The use of the PWM IC TL494 not only makes the design extremely [＃]
In this post we learn about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also [＃]
The post explains a high current Li-Ion battery charger circuit which can be used for charging any high current, such as 2S3P, 3S2P battery packs. It can be also used [＃]
The post discuses a simple 220 V to 220V DC online UPS inverter circuit. The idea was requested by Mr. Taiye. Technical Specifications I intend to build a 1000 watt [＃]
The article explains a battery status indicator circuit which can be also used as a battery charging fault indicator circuit. The idea was requested by Mr. Faizan. The Design The [＃]
The post explains how to interface an existing Arduino PWM signal with any inverter to convert it into a sine wave equivalent inverter. The idea was requested by Mr. Raju [＃]
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Interim pages omitted ＃
Archives for Inverter Circuits
SG 3525 Automatic PWM Voltage Regulation Circuit
SG 3525 Automatic PWM Voltage Regulation Circuit
The post explains a simple configuration which can be added with all SG 3525/3524 inverter circuits for implementing automatic PWM output voltage regulation by the IC. The solution was requested [＃]
In this post we＊ll study a simple high current mosfet based SPDT DC relay, which can be used in place conventional bulky SPDT mechanical relays. The idea was requested by [＃]
The post presents a simple circuit that may be used for charging a cellphone battery with a laptop battery. The idea was requested by Mr. Gyashuddin. Recharging Cellphone Battery with [＃]
The post discusses a circuit method which may be used to automatically switch and adjust the stronger counterpart amongst the solar panel, battery and the grid such that the load [＃]
In this post we learn how to make a simple sine wave inverter using bubba oscillator sine wave generator. The idea ws requested by Mr. Ritwik Naudiyal. Technical Specifications
The post explains a simple 48V inverter circuit which may be rated at as high as 2 KVA. The entire design is configured around a single IC 4047 and a [＃]
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Interim pages omitted ＃
Archives for Inverter Circuits
How to Convert a Low Power Inverter to a High Power Inverter
How to Convert a Low Power Inverter to a High Power Inverter
Here we learn about a couple of simple circuit configurations which will convert any low power inverter to a massive high power inverter circuit. You＊ll find a plenty of small [＃]
One big issue that most GTI manufacturers struggle to implement effectively is, what is commonly known as ※islanding§, the following discussion throws light on this important factor and tries to [＃]
The post presents a discussion regarding the troubleshooting of a 4047 IC based inverter output voltage drop problem on connecting a load. The solution was requested by Mr. Isaac Johnson. [＃]
In this post we discuss the construction of a 5000 watt inverter circuit which incorporates a ferrite core transformer and therefore is hugely compact than the conventional iron core counterparts. [＃]
The post explains a simple relay changeover circuit which may be used for switching a couple of A/Cs or any similar load alternately in order to avoid misuse and save [＃]
An inverter is an equipment which will convert a battery voltage or any DC (normally a high current) into a higher mains equivalent voltage (120V, or 220V), however unlike an [＃]
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Archives for Inverter Circuits
Grid-tie Inverter (GTI) Circuit Using SCR
Grid-tie Inverter (GTI) Circuit Using SCR
Grid-tie inverter concepts may appear to be complex due to the many criticalities involved with them, however with some intelligent thinking it could be actually implemented using primitive technologies. One [＃]
Among the different existing inverter topologies, the full bridge or the H-bridge inverter topology is considered to be the most efficient and effective. Configuring a full bridge topology could involve [＃]
In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, [＃]
The post discuses the how to make a 3 phase inverter circuit which can be used in conjunction with any ordinary single phase square wave inverter circuit. The circuit was [＃]
A very effective pure sine wave inverter circuit can be made using the IC 4047 and a couple IC 555 together with a few other passive components. Let＊s learn the [＃]
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Archives for Inverter Circuits
Homemade 100VA to 1000VA Grid-tie Inverter Circuit
Homemade 100VA to 1000VA Grid-tie Inverter Circuit
The following concept describes a simple yet viable solar grid tie inverter circuit which can be modified appropriately for generating wattage from 100 to 1000 VA and above. What＊s a [＃]
The article explains a simple solar boost charger with LED driver circuit which also includes a single push dimmable feature. The idea was requested by Mr. Ashutosh. Technical Specifications Hi [＃]
The post explains how to convert smps into a solar charger circuit. The method will result in an extremely efficient and fast solar charging of the connected battery. SMPS Solar [＃]
The post explains a very simple charging a cell phone from a 1.5v battery utilizing merely a 1.5V as the input source. The source can be any 1.5V cell rated [＃]
The following post explains through calculations how to select and interface the solar panel, inverter and charger controller combinations correctly, for acquiring the most optimal results from the set up. [＃]
In this post we learn how to recharge and use bad, defective discarded batteries using an innovative battery charging process invented by John Bedini. Lead acid batteries can sometimes be [＃]
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Archives for Inverter Circuits
Grid Mains to Generator Changeover Relay Circuit
Grid Mains to Generator Changeover Relay Circuit
The post explains a simple configuration which can be used as a automatic changeover circuit for switching AC grid mains to generator mains, during power failures or outages. The
The following article discusses a simple automatic micro UPS circuit which can be used with modems for acquiring uninterrupted power from a DC source, and battery during mains power failures. [＃]
The proposed solar water heater with battery charger controller circuit explains a simple method of utilizing the excess solar energy from a solar panel for heating water in water tanks [＃]
The following post describes an H-bridge modified sine wave inverter circuit using four n-channel mosfets. Let＊s learn more about the circuit functioning. The H-Bridge Concept We all know that among
The post explains a few
In the following article we discuss 3 useful DC to DC uninterruptible power supply circuits or DC UPS circuits for low DC to DC uninterruptible power applications TheHow to Design an Inverter 每 Theory and Tutorial
How to Design an Inverter 每 Theory and Tutorial
The post explains the fundamental tips and theories which may be useful for the newcomers while designing or dealing with basic inverter concepts. Let＊s learn more. What＊s an Inverter It＊s [＃]
The following article which discusses a 300 watt pure sine wave inverter circuit with automatic output voltage correction, is a modified version of one of my
The following article explains a pure sine wave inverter circuit using the IC 556 which forms the main sine wave processor device in the circuit. How it Works The presented [＃]
A grid tie inverter works quite like a conventional inverter, however the power output from such inverter is fed and tied with the AC mains from the utility grid supply. [＃]
The discussed automatic change over relay circuit was requested by Mr.Karimulla Baig. The circuit normally charges the connected battery at constant current through the power received from the solar panel, [＃]
A 50 watt inverter circuit might look quite trivial, but it can serve some useful purposes to you. When outdoors, this small power house can be used for operating small [＃]
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Archives for Inverter Circuits
2 Easy Automatic Inverter/Mains AC Changeover Circuits
2 Easy Automatic Inverter/Mains AC Changeover Circuits
I have been put forth with this question many times in this blog, how do we add a changeover selector switch for automatically toggling of an inverter when AC mains [＃]
A very simple low battery cut-off and overload protection circuit has been explained here. The figure shows a very simple circuit set up which performs the function of an overload [＃]
A relatively simple 1000 watt pure sine wave inverter circuit is explained here using a signal amplifier and
In this post we discuss how to build a simple UPS circuit for backing up computers or PCs during sudden power failures or brownouts. Introduction Normally when we talk about [＃]
The common problem with many low cost inverters is their incapability of adjusting the output voltage with respect to the load conditions. With such inverters the output voltage tends to [＃]
Making a power inverter circuit rated above 2000 VA is always difficult, mainly because of the involved transformer dimension which becomes quite huge,How an Inverter Functions, How to Repair Inverters 每 General Tips
How an Inverter Functions, How to Repair Inverters 每 General Tips
In this post we will try to learn how to diagnose and repair an inverter, by comprehensively learning the various stages of an inverter, and how a basic inverter functions. [＃]
In this article we will try to understand the basic concept of a solar inverter and also how to make a simple yet powerful solar inverter circuit. Solar power is [＃]
Designing an inverter transformer can be a complex affair. However, using the various formulas and by taking the help of one practical example shown here, the operations involved finally become [＃]
The circuit provided in this article shows you a simple way of building a useful liitle inverter that＊s easy to build and yet provides the features of a pure sine [＃]
An efficiency of around 85 % and a power output of more than 200 watts is what you will get from the present design of a power inverter (home built). [＃]
Interested to make your own power inverter with built in charger? A simple 400 watt inverter circuit with charger that can be very easily built and optimized has been provided [＃]
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Archives for Inverter Circuits
4 Simple Uninterruptible Power Supply (UPS) Circuits Explored
4 Simple Uninterruptible Power Supply (UPS) Circuits Explored
Under this post we investigate 4 simple 220V Mains Uninterruptible power supply (UPS)Vehicle Parking Lot Counter Circuit
Vehicle Parking Lot Counter Circuit
In this post we are going to learn how to construct a vehicle counter circuit that can count the number of vehicles entered in a parking lot at office building, [＃]
A visitor counter is a machine that counts the of number people who visited a place. Visitor counters are usually installed at the entrance and exit points of commercial buildings [＃]
In this post we are going to construct a circuit which can measure the speed of any vehicle on roads and highways. The proposed circuit is kept stationary at a [＃]
The post discusses the making of 3 simple yet effective smart laser alarm protection circuit using the IC 555, for securing a specified restricted zone from human interventions. The idea [＃]
The post explains an LED based intruder position indicator circuit which will indicate the position of the burglar throughout the secured corridor as the person tries to sneak past the [＃]
In this post, we are going to construct a laser security circuit which can send SMS alert to owner of the property or anyone else and activate loud alarm to [＃]
Archives for Laser Projects
Material Storage Level Controller Circuit
Material Storage Level Controller Circuit
The post discusses a simple material storage level controller circuit which can be used for automatically activating and deactivating a storage filling motor whenever the storage container is filled to [＃]
In this post we discuss a simple laser GSM call alert security circuit which immediately calls the master as soon as an intruder is detected through a laser beam interruption. [＃]
The post discusses a a simple yet versatile foolproof laser security alarm circuit which can be used for securing any concerned premise with extreme accuracy. The idea was requested by [＃]
The article discusses how to make a simple laser communicator circuit for sending and receiving data through laser beam. Laser has been a boon since its invention. Laser is used [＃]
The current controlled circuit of a laser pointer power supply explained in the following post was requested by Mr. Steven Chiverton (stevenchiverton@hotmail.com), who himself is an intense electronic
The following post illustrates a simple light toggled/operated remote control circuit, which can be activated by an ordinary flashlight or more effectively through 18650 2600mAh Battery Datasheet and Working
18650 2600mAh Battery Datasheet and Working
In this article we will try to understand the main specifications and datasheet of the Li-Ion cell 18650 2600 mAh, which is one of the most popular Li-ion batteries, and [＃]
These AC to DC power supplies use a single chip to convert mains 220 V or 120 V input AC into 12 V or 5 V DC without depending on [＃]
The high voltage LM317HV series of ICs will allow to go beyond the traditional voltage limits of an LM317 IC and enable controlling supplies that may be as high as [＃]
The popular LM317 voltage regulator IC is designed to deliver not more than 1.5 amps, however by adding an outboard current boost transistor to the circuit it becomes possible to [＃]
I have designed and published a variety of battery charger circuits in this website, however the readers often get confused while selecting the right battery charger circuit for their individual [＃]
The purpose of this paper is to detail a variable dual lab power supply circuit which has an adjustable range from 3V, 5V, 6V, 9V, 12V, and 15V or even [＃]
Archives for LM317/LM338
PWM LED Light Intensity Controller Circuit
PWM LED Light Intensity Controller Circuit
The post explains a simple IC 555 based PWM controller circuit which may be used for controlling the intensity of a specified LED bank. The idea was requested by Mr.Rajdeep. [＃]
This simple, enhanced, 5V zero drop PWM solar battery charger circuit can be used in conjunction with any solar panel for charging cellphones or cell phone batteries in multiple numbers [＃]
The post presents a simple circuit that may be used for charging a cellphone battery with a laptop battery. The idea was requested by Mr. Gyashuddin. Recharging Cellphone Battery with [＃]
The post explains a simple lithium polymer (Lipo )battery with over charge cut off feature. The idea was requested by Mr. Arun Prashan. Charging
In many sensitive electronic circuits or loads, adjusting the current limit in its power supply could be one of the most crucial requirements for ensuring a fail proof safety for [＃]
The post explains 2 simple universal current controller circuits which can be used for safely operating any desired high watt LED. The universal high watt LED current limiter circuit explained [＃]
Archives for LM317/LM338
15V 10 Amp Voltage Regulator Circuit Using IC LM196
15V 10 Amp Voltage Regulator Circuit Using IC LM196
The following article explains a linear voltage regulator power supply circuit using the IC LM196 which is capable of handling up to 10 amps of current and is able to [＃]
The following post explains a four simple yet a safe way of charging a Li-ion battery using ordinary ICs like LM317 and NE555 which can be easily constructed at home [＃]
We all are pretty familiar with the 78XX voltage regulator ICs or the adjustable types such as LM317, LM338 etc. Though these regulators are outstanding with their specified functioning and [＃]
The following 5 versions of 6 volt 4 AH battery charger circuits has been designed by me and posted here in response to the request from Mr. Raja, let＊s learn [＃]
In this post we learn about a car voltage stabilizer circuit which could be made and installed in all cars for ensuring a perfectly controlled and stabilized supply for the [＃]
Simple solar charger are small devices which allow you to charge a battery quickly and cheaply, through solar energy. A simple solar charger must have 3 basic features built-in: It [＃]
Archives for LM317/LM338
Designing Simple Power Supply Circuits
Designing Simple Power Supply Circuits
The post details how to design and build a simple power supply circuit right from the basic design to the reasonably sophisticated power supply having extended features. Power Supply is [＃]
In this article we will be discussing a list of simple 12V battery charger circuits which are very easy and cheap by its design yet extremely accurate with its output [＃]
In this post we will elaborately discuss how to build a simple LM317 based adjustable power supply circuit using minimum number of external components. As the name suggests a variable [＃]
Archives for LM3915 IC
LM3915 IC Datasheet, Pinout, Application Circuits
LM3915 IC Datasheet, Pinout, Application Circuits
If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we [＃]
An alcohol detector is a sensitive device which is able to detect the presence of alcohol molecules or any similar volatile inflammable element in the air and convert it into [＃]
A wireless music level indicator is an electronic device built for sensing the varying levels of a music signal and convert it into corresponding levels of illumination over an LED [＃]
The post explains how an accurate 10 LED tachometer circuit can be built using ordinary parts like IC 555 and IC LM3915. The idea was requested by Mr. Munsif. What [＃]
A simple tea, coffee vending machine circuit idea is explained here which allows a customer to access the beverage with a press of a button and by inserting a genuine [＃]
The post explains a battery backup time indicator circuit for monitoring the battery power usage by the connected load and for estimating the approximate remaining backup time of the battery. [＃]
Archives for LM3915 IC
Speed Dependent Brake Light Circuit
Speed Dependent Brake Light Circuit
The post explains an innovative brake light circuit using speed detection of the vehicle which could be a motorcycle. The circuit implements an advanced brake light switch ON ensuring a [＃]
A very interesting push button operated fan regulator circuit with LED display is explained in the following article, which can be built and installed at home for the suggested purpose. [＃]
Controlling a heavy electrical appliance with push buttons can be extremely convenient since it allows a solid state approach for operating the parameter both ways up and down by mere [＃]
The post discusses a