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Newly Updated Circuit Projects:

2 Simple Induction Heater Circuits – Hot Plate Cookers

Last Updated on January 19, 2025 by Swagatam 413 Comments

royerinductionheatercircuit

In this post I have explained 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 radius. The discussed induction cooker circuits are truly simple and uses just a few active and passive ordinary components for the required actions. Update: You […]

Filed Under: Temperature Controllers Tagged With: Circuits, Cookers, Heater, Induction, Plate, Simple

2 Simple Earth Leakage Circuit Breaker (ELCB) Explained

Last Updated on January 19, 2025 by Swagatam 36 Comments

The discussed Earth leakage circuit breaker diagrams will monitor the leakage current level of the earthing line of your house electrical sockets and will trip the appliances as soon a fault is detected. Here I have explained 2 designs, first using transistors only and the second using IC LM324. Introduction If anything goes wrong with […]

Filed Under: Security and Alarm Tagged With: Breaker, Earth, ELCB, Explained, Leakage, Simple

2 Simple Bidirectional Motor Controller Circuits Explored

Last Updated on January 19, 2025 by Swagatam 25 Comments

motor2Bspeed2Bcontroller2Bcircuit

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 Full bridge or H bridge based Bidirectional motor controller circuit using the 4 opamps from the IC LM324. In the second article I have explained […]

Filed Under: Motor Controller Tagged With: Bidirectional, Circuits, Controller, Explored, Motor, Simple

2 Simple Arduino Temperature Meter Circuits Explored

Last Updated on January 19, 2025 by Swagatam 7 Comments

LEDThermometerpic

In this article, I will show how to construct a couple of easy Arduino temperature meter circuits which can be also used as a LED room thermometer circuit. The circuit is designed to display the readings in doted/bar LEDs. This project can be implemented for applications where ambient temperature plays a crucial role or it […]

Filed Under: Sensors and Detectors Tagged With: Arduino, Circuits, Explored, Meter, Simple, Temperature

2 Meter Ham Radio Transmitter Circuit

Last Updated on January 19, 2025 by Swagatam 11 Comments

Fig compressed

In this post I have explained the complete building procedure of a 2-meter amateur ham radio transmitter circuit, using ordinary electronic components and ordinary test equipment. What is 2-Meter VHF Radio The 2-meter amateur radio band is a section of the VHF radio spectrum, which includes frequencies ranging from 144 MHz to 148 MHz in […]

Filed Under: Wireless Circuits Tagged With: Meter, Radio, Transmitter

2 Easy Automatic Inverter/Mains AC Changeover Circuits

Last Updated on January 19, 2025 by Swagatam 158 Comments

inverter batterychargerchangeoverrelaycircuit

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 is present and vice versa. And also the system must enable automatic switching of the battery charger such that when AC mains is present the […]

Filed Under: Inverter Circuits Tagged With: AC, Automatic, Changeover, Easy, Inverter, Mains

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