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Newly Updated Circuit Projects:

2 Best Current Limiter Circuits Explained

Last Updated on June 1, 2026 by Swagatam 336 Comments

precisioncurrentlimiter

In this post I have explained 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 here can be integrated with any crude DC supply source for getting an outstanding over current protection for the connected high watt […]

Filed Under: Lamps and Lights Tagged With: Best, Circuits, Current, Explained, Limiter

Inductive Energy Receiving Concept – Tesla Coil Concept

Last Updated on May 20, 2026 by Swagatam 14 Comments

free

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 The invention of Nikola Tesla differs, but the closest thing to his invention can be found in a conventional energy – the photo-voltaics. One major […]

Filed Under: Energy from Magnets and Earth Tagged With: Coil, Concept, Energy, Free, Receiving, Tesla

How to Collect Electromagnetic Energy from Atmosphere

Last Updated on June 30, 2026 by Swagatam 132 Comments

freeenergycollectorcircuit 1

A radiant 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 increase the output power is achievable through proper set-up of an antenna. Placing an antenna in a close proximity of a large metal object helps […]

Filed Under: Energy from Magnets and Earth Tagged With: Atmosphere, Collect, Energy, Free

Bicycle Generator Circuit

Last Updated on July 22, 2026 by Swagatam 18 Comments

freeenergybicyclegenerator

In the following post I have explained a simple circuit idea which can be used for generating free electrical energy for illuminating a few safety flashing LEDs on a  Bicycle. The Circuit Concept A bicycle like any other modern vehicle needs provision of lighting system for its use at night or cycling in lesser light. Usually […]

Filed Under: Energy from Magnets and Earth Tagged With: Bicycle, Energy, Free, Generator

0-300V Adjustable Transformerless Power Supply Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 269 Comments

ZEROTO220300VVARIABLEPOWERSUPPLYCIRCUIT

This simple MOSFET controlled transformerless power supply circuit can be used for delivering a continuously variable 0 to 300V DC output and a current control from 100 mA to 1 Amp. To protect against my high voltage research projects from going up in smoke permanently, I developed an easy circuit which is able to render […]

Filed Under: Power Supply Circuits Tagged With: 300V, Adjustable, Power, Supply, Transformerless

Automatic Voltage Regulator (AVR) Analyzer

Last Updated on January 2, 2024 by Swagatam 39 Comments

avr analyzer circuit

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. Technical Specifications I want to make an analyzer for Automotive Voltage Regulator (AVR). 1. The three wires of the AVR are connected to the corresponding […]

Filed Under: Voltage Control and Protection Tagged With: Analyzer, Automatic, AVR, Regulator, Voltage

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