Mains Isolated Transforless Power Supply Circuit - Simple Electronic Project

Introduction

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Diagram of 220V to 12V DC Power Supply

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Components Needed for this Project:

You can get the components from any of the sites below:

  1. 225J (400V) Capacitor [See Buy Click Amazon]
  2. 100uF (50v) Capacitor [See Buy Click Amazon]
  3. 1M Ohm Resistor [See Buy Click Amazon]
  4. 1N4007 Doide [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

Related Basic Electronic Mini Project Circuit Diagram:

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Working Principle

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Frequently asked questions

What is a transformerless power supply?

flow output in milliamps. It is used in low-power electronic applications like LED lights, toys, and household appliances.

How does an isolation transformer work?

An isolation transformer, just like a typical transformer, is a non-moving device that transmits electrical energy from one circuit to another without requiring any physical contact. It works on the idea of magnetic induction.

Why is an isolation transformer used?

Isolation transformers provide galvanic isolation; no conductive path is present between the source and load/output point. This isolation is used to protect against electric shock systems and to suppress electrical noise in sensitive devices.

What is ultra isolation transformer?

Ultra Isolation Transformer attenuates common mode noise and transverse mode noise and provides for noise or interference-free power supply.

Is a control transformer an isolation transformer?

A control transformer is an isolation transformer that provides good voltage regulation and is also designed to provide a high degree of secondary voltage supply stability (regulation) during a brief period of overload condition.

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