{782} 12 Volt SMPS Have Only 3 Volt Output, Low Output
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Haseeb Electronics: {782} 12 Volt SMPS Have Only 3 Volt Output, Low Output


Published on: Wednesday, November 30, 2022

{782} 12 Volt SMPS Have Only 3 Volt Output, Low Output

12 Volt SMPS Power Supply Have Only 3 Volt Output. in this video number {782} i demonstrated and explained how to repair TL494 / KA7500 based half bridge 12 volt 20 ampere smps rafeed model RF-0076, it was providing low output voltage than the rated 12 volt, and there was no control by voltage adjustment potentiometer. i found the pwm controller ic tl494, it was damaged. i replaced the smps controller ic with new one and the power supply started functioning normally

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i shared very easy & step by step practical troubleshooting / circuit tracing and fault finding techniques to find the faults in any switching mode power supply.
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00:00 12 volt smps power supply is giving low output voltage
00:30 how to apply power to a circuit for testing (DUT / UUT)
00:49 how to troubleshoot / repair smps power supply
04:47 damaged / cracked TL494 ic
05:07 how to check TL494 power supply circuit

Source: https://youtu.be/ATv4_-4O76k

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