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Drok 720W buck dc-dc converter 0-75v, 0-12A: No power 2020-11-14T16:52:10+00:00

Home Forums Voltage Regulator Support Drok 720W buck dc-dc converter 0-75v, 0-12A: No power

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  • Henry
    Post count: 0

    I bought 2 of these item and it was fantastic. But I had problem with my input supply which I think went beyond 75vdc. Now, the converters won’t power up. There is no visible burnt on PCB. When I connect lower  input voltage of  say 50v, I see 107v on input terminal. kindly help with what component I need to change. Thanks

    Drok
    Keymaster
    Post count: 2563

    Hello Henry,

    Is it this item? https://www.amazon.com/dp/B08LPVWX74/ref=as_li_tl?tag=proeng-20

    This item can’t display input voltage. Do you mean you check input terminal with other multimeter?

    Best regards.

    Henry
    Post count: 0

    Yes. It’s the item on the link. T

    The input voltage I supplied it went beyond 75Vdc. I suspect damaged component, that’s why am asking for your support to know which component damaged so I can change it.

    Henry
    Post count: 0

    Hello keymaster,

    I read on the module manual that any input voltage above 75vdc could damage the converter which I think might have happened. Now it can’t power up. Kindly help me to figure out which component to check and replace. Regards

     

    Drok
    Keymaster
    Post count: 2563

    Hello Henry,

    If possible, please try to replace below components.

    U1: XL7005A,

    T4: BU406,

    T3: C2383,

    D6: IN4754

    For any more questions, please let us know.

    Best regards,

    DROK

    Henry
    Post count: 0

    Ok. I will do that. Thanks

Viewing 6 posts - 1 through 6 (of 6 total)
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