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Simplest

Simplest Combination Lock Circuit Explained

Last Updated on January 2, 2024 by Swagatam 14 Comments

12V solenoid lock

A electronic combination lock is a device which is designed to activate an electrical solenoid locking system whenever the correct combination of numbers are entered into an attached keypad. To build this type of electronic combination lock, normally an electronic circuit with a keypad is used. In the design I have explained in this article, […]

Filed Under: Security and Alarm Tagged With: Combination, Explained, Lock, Simplest

Simplest Quadcopter Drone Circuit

Last Updated on January 2, 2024 by Swagatam 109 Comments

In this article I have explained the basics of quadcopter body assembly using aluminum pipes and bolts, in the later sections of the article we will also discuss regarding a simple drone circuit which could be use for flying a small drone assembly without depending on complex microcontrollers. A quadcopter is perhaps the simplest flying […]

Filed Under: Remote Control Circuits Tagged With: Drone, Quadcopter, Simplest

Simplest Windmill Generator Circuit

Last Updated on January 3, 2024 by Swagatam 64 Comments

simplewindmillgenerator

In this post I have explained 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, free of cost. Solar Panel vs Windmill One of the biggest drawback of solar panel electricity is that it’s available only during […]

Filed Under: Free Energy Tagged With: Generator, Simplest, Windmill

Simplest 100 Watt LED Bulb Circuit

Last Updated on December 9, 2024 by Swagatam 163 Comments

In this article I have explained 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 have already discussed many capacitive type of transformerless power supply circuits in this blog, however all these suffers from a couple of […]

Filed Under: Lamps and Lights Tagged With: 100, Bulb, LED, Simplest, Watt

Simplest Full Bridge Inverter Circuit

Last Updated on March 20, 2025 by Swagatam 361 Comments

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 too many criticality, however with the advent of full bridge driver ICs these have now become one of the simplest inverters one can build. What’s […]

Filed Under: Inverter Circuits Tagged With: Bridge, Full, Inverter, Simplest

Simplest One Transistor Regulated Power Supply Circuit

Last Updated on January 2, 2024 by Swagatam 11 Comments

simplestvariablebenchpowersupplycircuit

In this article I have explained a simple variable regulated voltage power supply circuit which utilizes just a single transistor. The design can be very handy for the new electronic hobbyist Main Features The explained power supply includes an adjustable voltage feature which is an essential feature for every electronic enthusiast. However making one such […]

Filed Under: Power Supply Circuits Tagged With: Power, Regulated, Simplest, Supply, Transistor

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