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Newly Updated Circuit Projects:

How to Generate Electricity from Piezo

Last Updated on January 21, 2026 by Swagatam 8 Comments

piezo transducer element

Generating electricity from piezo could be as easy as making a flick with your finger….. curious to know how? I have explained more about this amazing device called piezo, which can be used for generating music as well as electricity. How Piezo Responds to Force and Electricity Piezo material is a crystalline substance which has […]

Filed Under: Renewable Energy Tagged With: Electricity, Generate, Piezo

Simplest Windmill Generator Circuit

Last Updated on January 21, 2026 by Swagatam 70 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: Renewable Energy Tagged With: Generator, Simplest, Windmill

Build this Unidirectional Wind Turbine: Wells Turbine

Last Updated on January 21, 2026 by Swagatam 4 Comments

In this article I will explain you the full step by step building guide for making one Wells turbine at home, which is intended specially for homemade sea wave electricity system using oscillating air column. What is Wells Turbine So first we must understand that wells turbine is a special type of turbine in which […]

Filed Under: Motor Controller, Renewable Energy Tagged With: Build, Turbine, Unidirectional, Wells, Wind

Pure Sine Wave Inverter Circuit Using IC 4047

Last Updated on January 19, 2026 by Swagatam 811 Comments

A very effective pure sine wave inverter circuit can be made using the IC 4047 and a couple IC 555 together with a few other passive components. I have explained the details below. Introduction In one of my previous posts I explained the main specifications and datasheet of the IC 4047 where I have explained […]

Filed Under: Inverter Circuits Tagged With: 4047, Inverter, Pure, Sine, Wave

10 Simple LED Chaser Circuit Diagrams Explained [Knight Rider, Scanner, Reverse-Forward, Cascaded]

Last Updated on January 16, 2026 by Swagatam 174 Comments

knight rider 2

In this article I have explained the construction of 10 interesting yet simple LED chaser circuits, which not only create beautiful running light effect but are also easy to build. We also discuss how to modify these into a design popularly known as “knight rider” chaser circuit. These primarily incorporate LEDs as well as mains […]

Filed Under: Lamps and Lights Tagged With: Chaser, Diagrams, Explained, Knight, LED, Simple

Making a Parasite Zapper Circuit

Last Updated on January 12, 2026 by Swagatam 6 Comments

frenquencygeneratorparasitezapperschematic

An interesting electronic parasite zapper circuit shown below was successfully built and tested by my friend Mr. Steven. I have explained more about the proposed circuit. What is a Parasite Zapper The purpose of this device is simple, it is meant to act like a parasite zapper, a DIY electronic device that people say can […]

Filed Under: Pets and Pests Tagged With: Making, Parasite, Zapper

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