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

Last Updated on January 8, 2024 by Swagatam 113 Comments

050926 1

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 […]

Filed Under: Power Supply Circuits Tagged With: Mode, Power, Repair, SMPS, Supply, Switch

LM317 Variable Switch Mode Power Supply (SMPS)

Last Updated on August 22, 2024 by Swagatam 118 Comments

variable switching power supply using LM317 2

So far in this website we have studied LM317 based linear power supply circuits, here I have explained how an LM317 can be executed as a variable switch mode power or SMPS with zero loss. LM317 as Linear Regulator We all know that an LM317 IC is internally designed to work as a linear voltage […]

Filed Under: Power Supply Circuits Tagged With: LM317, Mode, Power, Supply, Switch, Variable

1A Step-Down Voltage Regulator Circuit – Switched Mode 78XX Alternative

Last Updated on January 19, 2025 by Swagatam 4 Comments

simpleswitcherregulatorIC

You will be amazed with the features offered by this outstanding voltage regulator IC. As the name refers to, the output from this series of ICs is not only regulated and stabilized but is in the form of switched pulses at very high frequencies. Enhanced Version of the Popular 78XX ICs These ICs may be […]

Filed Under: Power Supply Circuits Tagged With: Down, Mode, Regulator, Step, Switched, Voltage

How Switch Mode Power Supply (SMPS) Circuits Work

Last Updated on January 8, 2024 by Swagatam 58 Comments

10WSMPSCircuitUsingSTMicroelectronicsVIPer22

SMPS is the acronym of the word Switch Mode Power Supply. The name clearly suggests that the concept has something or entirely to do with pulses or switching of the employed devices. I have explained how SMPS adapters work for converting mains voltage to a lower DC voltage. Advantage of SMPS Topology In SMPS adapters […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Mode, Power, SMPS, Supply, Switch

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