Making a 220v to 110V Transformerless Converter Circuit

The presented circuit has been taken from an old elektor electronic magazine which describes a neat little circuit for converting 220V mains input to 110V AC. Let’s learn more about the circuit details. Circuit Operation The shown circuit diagram of a transformerless 220v to 110v converter utilizes a triac and a thyristor arrangement for making the circuit successfully work … Read moreMaking a 220v to 110V Transformerless Converter Circuit

4 Easy Transformerless Power Supply Circuits Explained

In this post we discuss 4 easy to build, compact simple transformerless power supply circuits. All the circuits presented here are built using capacitive reactance theory for stepping down the input AC mains voltage. 1) The Transformerless Power Supply Concept A transformerless power supply works by using a high voltage capacitor to drop the mains … Read more4 Easy Transformerless Power Supply Circuits Explained

How to Calculate Transformerless Power Supplies

This post explains how to calculate resistor and capacitor values in transformerless power supply circuits using simple formulas like ohms law. Analyzing a Capactive Power Supply Before we learn the formula for calculating and optimizing resistor and capacitor values in a transformerless power supply, it would be important to first summarize a standard transformerless power … Read moreHow to Calculate Transformerless Power Supplies

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