Power Electronics

In this category we fundamentally discuss power electronic principles related to switch mode power supplies.

The subject basically includes theories involving solid state power supplies built with switching semiconductor devices like mosfets and IGBTs.

Here we mostly focus on SMPS converters which are used for converting mains AC to low DC using switch mode technology and ferrite based transformers.

Power electronics was developed to ensure higher efficiency in converter designs in terms of cost, weight and consumption.

Thus we can see why SMPS based systems are compacts and lighter in weight than the conventional iron cored converters, and these are additionally very energy efficient since SMPS circuits waste very little power while operating.

However handling power factor correction becomes  a major issue while designing power electronic circuits, and in this segment we also have a detailed article regarding the correct implementing of PFC in SMPS circuits.

Home » Power Electronics

How to Design a Flyback Converter – Comprehensive Tutorial

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basic flyback configuration

A flyback configuration is the preferred topology in SMPS application designs mainly because it guarantees complete isolation of the output DC from the input mains AC. Other features include low manufacturing cost, simpler design and uncomplicated implementation. The low current DCM version of flyback converters which include output specification lower than 50 watt are more … Read moreHow to Design a Flyback Converter – Comprehensive Tutorial

How to Make Simple Boost Converter Circuits

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simple boost converter circuit using BJT

A couple of simple boost converter circuts are explained in this post, whch can be build and applied by any hobbyists for their own specific requiremenet. What is a Boost Converter A boost converter circuit is a design intended for stepping-up or boosting a small input voltage levels to a desired higher output voltage level, … Read moreHow to Make Simple Boost Converter Circuits

How to Repair a Switch-Mode-Power-Supply (SMPS)

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In this post we try to diagnose a burnt SMPS circuit and try to troubleshoot and repair the circuit. The shown unit is a cheap readymade Chinese make SMPS circuit. This article is written as per the request made by Mr. Kesava. My SMPS got Burnt The below attachment is 12v 1.3 amps  SMPS for … Read moreHow to Repair a Switch-Mode-Power-Supply (SMPS)

Make this Buck Converter Using Arduino

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In this project we are going to step down 12v D.C to any D.C value between 2 and 11volts. The circuit which steps down the D.C voltage is known as buck converter. The output voltage or step down voltage needed is controlled using a potentiometer connected to arduino. By Ankit Negi INTRODUCTION TO CONVERTERS: There … Read moreMake this Buck Converter Using Arduino

110V, 14V, 5V SMPS Circuit – Detailed Diagrams with Illustrations

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In this post we learn how to apply the IC L6565 for making a compact multi purpose 110V, 14V, 5V SMPS circuit using minimum number of external components. Implementing quasi-resonant ZVS flyback The IC L6565 from ST Microelectronics is designed as a current-mode primary controller chip, to specifically suit quasi-resonant ZVS flyback converter applications. The quasi-resonant … Read more110V, 14V, 5V SMPS Circuit – Detailed Diagrams with Illustrations

LC Oscillator Working and Circuit Diagram Details

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In this post we are going to understand how LC oscillator circuits functions and we will be constructing one of the popular LC based oscillator – Colpitts oscillator. What are Oscillators Electronic oscillators are used in most of our daily used electronic gadgets ranging from digital clock to high end core i7 processor. Oscillators are … Read moreLC Oscillator Working and Circuit Diagram Details

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