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Newly Updated Circuit Projects:

Arduino 3 Phase Inverter Circuit with Code

Last Updated on May 21, 2026 by Swagatam 169 Comments

driver

An Arduino three phase inverter is a circuit which produces a 3 phase AC output through a programmed Arduino based oscillator. In this post I have explained how to make a simple microprocessor Arduino based 3 phase inverter circuit which could be upgraded as per user preference for operating a given 3 phase load. We […]

Filed Under: Grid and 3-Phase, Inverter Circuits Tagged With: Arduino, Code, Inverter, Phase

3 Phase Brushless (BLDC) Motor Driver Circuit

Last Updated on May 21, 2026 by Swagatam 62 Comments

In this post I have explained 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 simple since most of the technicalities is taken care of efficiently by the IC itself, it’s all about connecting the relevant pinouts with the […]

Filed Under: Grid and 3-Phase, Motor Controller Tagged With: BLDC, Brushless, Driver, Motor, Phase

Driving 3-Phase Motor on Single Phase Supply

Last Updated on May 21, 2026 by Swagatam 33 Comments

3phasemotordriverpwmstage

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 have tried to present one such PWM controlled three phase motor driver circuit. I have explained more. The circuit can be understood with the following […]

Filed Under: Grid and 3-Phase, Motor Controller Tagged With: Driving, Motor, Phase, Single, Supply

Petrol to LPG ATS Circuit using Solenoid Changeover Valve

Last Updated on May 21, 2026 by Swagatam 32 Comments

ATSsolenoid 1

In this post I have explained 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 idea was requested by Mr. Junaid. Technical Specifications sir i want to make my generator automatic start on petrol then shift […]

Filed Under: Grid and 3-Phase Tagged With: ATS, Changeover, LPG, Petrol, Solenoid, Valve

Simple Digital Stopwatch Circuit (4-Digit)

Last Updated on May 21, 2026 by Swagatam 50 Comments

stopwatchcircuit

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 and Submitted by: Jennifer Goldy Circuit Operation IC MM74C926 is internally made up of a 4-digit counter, an output latch up stage, a npn output […]

Filed Under: Games and Sports Projects Tagged With: Digit, Digital, Simple, Stopwatch

Make a Football Electricity Generator Circuit

Last Updated on May 21, 2026 by Swagatam 5 Comments

footballelectricity

The explained football electricity generator circuit was developed by me in response to the request sent by one of the readers Mr.Bright. Though I am not sure if the explained concept would actually give the intended results, it’s worth trying as it’s quite easy to understand and build. Designing the Generator There were three things that I had to consider while designing the […]

Filed Under: Energy from Magnets, Games and Sports Projects Tagged With: Electricity, Football, Generator

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