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Search Results for: smps

The Role of Inductor Coil in SMPS

Last Updated on January 14, 2021 by Swagatam Leave a Comment

The most crucial element of a switched mode converter or an SMPS is the inductor. Energy is stored in the form of a magnetic field in the core material of […]

Filed Under: SMPS

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

Last Updated on April 7, 2022 by Swagatam 54 Comments

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. […]



Filed Under: Power Electronics, SMPS

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

Last Updated on January 23, 2022 by Swagatam 13 Comments

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 […]

Filed Under: Power Electronics, SMPS

2 Compact 12V 2 Amp SMPS Circuit for LED Driver

Last Updated on January 4, 2020 by Swagatam 45 Comments

In this post we comprehensively discuss a 2  simple 12V 2 amp SMPS circuit using the IC UC2842. We study a 2 amp flyback design by evaluating various formulas, which […]

Filed Under: Power Supply Circuits, SMPS

7 Watt LED Driver SMPS Circuit – Current Controlled

Last Updated on January 8, 2021 by Swagatam 27 Comments

The presented 7 watt LED driver circuit is an SMPS based non-isolated, transformerless circuit which ensures a safe current controlled output for the attached LED, it is very affordable to […]

Filed Under: DIY LED Projects, SMPS

LM317 Variable Switch Mode Power Supply (SMPS)

Last Updated on July 8, 2019 by Swagatam 72 Comments

So far in this website we have studied LM317 based linear power supply circuits, here we will learn how an LM317 can be executed as a variable switch mode power […]

Filed Under: Power Supply Circuits, SMPS

Make this 3.3V, 5V, 9V SMPS Circuit

Last Updated on December 5, 2019 by Swagatam 16 Comments

Here we learn about a simple switch mode power supply (SMPS) circuit which is capable of delivering 3.3V, 5V, 9V at around 800mA from a Mains input range of 100V […]

Filed Under: Power Supply Circuits, SMPS

Ferrite Core Material Selection Guide for SMPS

Last Updated on July 3, 2019 by Swagatam 9 Comments

In this post we learn how to select ferrite core material with the correct specifications for ensuring proper compatibility with a given SMPS circuit design Why Ferrite Core Ferrite is […]

Filed Under: Power Electronics, SMPS

SMPS Voltage Stabilizer Circuit

Last Updated on June 11, 2020 by Swagatam 157 Comments

The article explains a solid state switch-mode mains voltage stabilizer circuit without relays, using a ferrite core boost converter and a couple of half-bridge mosfet driver circuits. The idea was […]

Filed Under: Home Electrical Circuits, SMPS

How to Modify SMPS for Adjustable Current and Voltage Output

Last Updated on April 5, 2021 by Swagatam 89 Comments

This article discusses a method through which any ready made SMPS can be converted into a variable current smps circuit using a few external jumper links. In one of the […]

Filed Under: Power Supply Circuits, SMPS



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