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Newly Updated Circuit Projects:

1 watt LED Lamp Circuit Diagram using SMD LEDs

Last Updated on June 8, 2026 by Swagatam 21 Comments

12Bwatt2BLED2Busing2B5mm2BLED

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. I have explained the details. 1 Watt LED vs 3528 smd LEDs or 2214 SMD LEDs Today 1 watt LEDs are very popular and these are utilized in most LED lamp […]

Filed Under: Lamps and Lights Tagged With: Lamp, LED, LEDs, SMD, Watt

Simple Musical Door Bell Circuit

Last Updated on May 15, 2026 by Swagatam 35 Comments

doorbell circuit

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 user preference, we’ll learn the entire circuit procedure through the following article. Today we can find a huge range of door bells in the market […]

Filed Under: Audio and Amplifier Projects Tagged With: Bell, Door, Musical, Simple

SMPS Voltage Stabilizer Circuit

Last Updated on July 5, 2025 by Swagatam 165 Comments

voltage2Bstabilizer2Bcircuit

In this article I have explained 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 requested by Mr. McAnthony Bernard. Technical Specifications Of late i started looking at voltage stabilizers use in house hold to regulate utility […]

Filed Under: SMPS and Converters Tagged With: SMPS, Stabilizer, Voltage

Adjustable CDI Spark Advance/Retard Circuit

Last Updated on July 1, 2026 by Swagatam 66 Comments

advance2Bretard2Bignition2Bcircuit

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 ignition or simply a normal timed ignitions. After a comprehensive study regarding the subject I was apparently successful in designing this circuit which can be […]

Filed Under: Automobile Electronics Tagged With: Adjustable, Advance, CDI, Retard, spark

How to Generate Electricity from a Pendulum

Last Updated on May 20, 2026 by Swagatam 39 Comments

free2Benergy2Bfrom2Bpendulum

In this post I have explained how a pendulum mechanism can be used for achieving overunity and generate electricity in the form of free energy. Pendulum Working Principle We all know and have practically seen how a pendulum works or oscillates. Technically it may be defined as a mechanism made up of a shaft with […]

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

How to Make HHO Fuel Cell Circuit in Automobiles for better Fuel Efficiency

Last Updated on June 30, 2026 by Swagatam 177 Comments

HHO2Bgas2Bin2Bmotorcycle

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 diesel consumption by the same amount. In the previous post I tried to put forth an innovative design of a high voltage low current generator […]

Filed Under: Automobile Electronics, Energy from Magnets and Earth Tagged With: Automobiles, better, Cell, Efficiency, Fuel, HHO

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