All posts tagged "power supply repair"

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  Open SMPS Transformer Hand-Wound In Mobile Charger TC-70

              For a change, this time it was my own device that became defective. My mobile charger conked off one day and I kept it aside for investigation for a later day....

  • Posted February 24, 2023
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  Mean Well Model P25A-14E Power Supply Repaired

                A local radio station asked me if I would take a look at one of their mixing consoles’ power supply. They dropped off the mixing console and its power supply....

  • Posted April 16, 2022
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  A Serious Mistake In 12 Volts Power Supply Repaired

  A friend of mine and a fashion store owner brought me three power supplies for repair. He said the electrician tried to fix something in his store but instead he damaged these three LED power supplies there....

  • Posted December 3, 2021
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  5V DC Power Supply Module Repaired

                A friend of mine who is hobbyist and sometime he use to do some house hold repair job also. He sent me one power supply module for repair used in...

  • Posted November 4, 2021
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  Equivalent Series Resistor (ESR) Value in Electrolytic Capacitors 

                Equivalent series resistor (ESR) in electrolytic capacitor is an interesting topic. Electrolytic capacitors can be found in many circuits in a circuit board but in today’s article I’m going to...

  • Posted September 29, 2021
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  What’s The Purpose Of Two Different Type Of Capacitors In Parallel?

  Repairing Switch Mode Power Supplies (SMPS) can be much fun, interesting but sometimes you may get frustrated too if it can’t be repaired. There are simple and complex designs of SMPS in the market. Problems of SMPS...

  • Posted September 16, 2021
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  Power Supply For A Pool Lights Repaired

              My brother brought me this power supply for repair. It was a power supply for lights in his swimming pool. He has a villa for rent and in this villa he...

  • Posted April 26, 2021
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  SMPS Of Running Display Failed Due To Defective PWM 3842 IC

                  This SMPS was brought to me by my Techie Friend, who could not find time to troubleshoot this due to heavy load of work. This SMPS was of the...

  • Posted October 27, 2020
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