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  1. #1
    cnczone
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    Default who can help me about

    who can help me about JG-10060 laser cutting power supply?
    it doesn t work. I should repair it but there no name on the IC. its name was erase. there are something written like 74... and TL4...



  2. #2


  3. #3
    Member john-100's Avatar
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    Default Re: who can help me about

    it could be using the TL494 PWM control IC that is very often used in ATX computer power supplies

    TL494 data
    TL494 PWM Control Circuit | TI.com
    PDF data sheet
    who can help me about-tl494-pdf

    see here for ATX PSU:-
    200W ATX PC POWER SUPPLY

    who can help me about-atx-psu-jpg

    I would expect it will have a switch mode power supply circuit to power the Laser control circuit and an EHT generator circuit using a flyback transformer very like the one found in the old TV's & Monitors that used a CRT (cathode ray tube)


    John



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