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Simplest

Simplest Full Bridge Inverter Circuit

Last Updated on March 20, 2025 by Swagatam 386 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 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

Make a Simplest Temperature Indicator Circuit

Last Updated on January 3, 2024 by Swagatam 20 Comments

SimpleTemperatureControllerCircuit

A very simple temperature indicator circuit can be built by interconnecting a single transistor, a diode and a few other passive components. Using Transistor as a Heat Sensor As we know that all semiconductors have this “bad habit” of changing its basic characteristics in response to ambient temperature changes. Especially basic electronic components like transistors […]

Filed Under: Indicator Circuits Tagged With: Indicator, Simplest, Temperature

Simplest Windmill Generator Circuit

Last Updated on January 3, 2024 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: Free Energy Tagged With: Generator, Simplest, Windmill

Simplest Piezo Driver Circuit Explained

Last Updated on January 2, 2024 by Swagatam 45 Comments

piezodrivercircuit1

In the previous post I explained a piezo transducer element and learned how to use it with electronic circuits. In this article we will see how a piezo tranducer can be driven or operated using a simple circuit. As discussed earlier a piezo transducer basically requires a frequency to vibrate and reproduce the required sound. […]

Filed Under: Audio and Amplifier Projects Tagged With: Driver, Explained, Piezo, Simplest

Simplest AM Radio Circuit

Last Updated on January 2, 2024 by Swagatam 171 Comments

Antenna Coil

The following circuit was taken from an old electronic book, it is indeed a very nice little two transistor radio receiver circuit which utilizes very few components yet is able to produce output over a loudspeaker and not just over headphones. Circuit Operation As can be seen in the given circuit diagram, the design is […]

Filed Under: Audio and Amplifier Projects Tagged With: AM, Radio, Simplest

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