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USB Voltage Regulator Output voltage not matching Set Voltage 2021-11-16T20:17:18+00:00

Home Forums Voltage Regulator Support USB Voltage Regulator Output voltage not matching Set Voltage

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  • Skashkash
    Post count: 0

    Hi,

    Recently purchased following device.

    Having the following problem in PER mode.

    The output voltage is consistently wrong comparted to the set voltage.

    For example if the Set voltage is 12.00 Volts and set current is 1.00 amp

    The output voltage will be over 20 volts. The on screen voltage monitor will be correct. Just won’t match the set voltage.

    Am I doing something wrong?

    Thanks.

     

    Drok
    Keymaster
    Post count: 2783

    Hello Skashkash,

    How large is the input voltage? Would you like to show your operation by video so that we can check further?

    Best regards.

    Skashkash
    Post count: 0

    Thanks for the reply, Video would be difficult for me.

    But please see attached image.

    Input is from a 5volt 2amp supply, but results are exactly the same with other sources and connectors.

    Output voltage changes when the current limit is changed, but I’m not drawing anything close to the CC limit.

    Load resistor in 1mage is 2K  just to put a minimum load on the output. Results are the same without the resistor.

    https://photos.app.goo.gl/6LipbJHuazjFQZWj9

    Drok
    Keymaster
    Post count: 2783

    Hello,

    The images shows the voltage reading is 18.68v, did you check the actual output voltage with other meter? Is it the same as the voltage reading?

    Skashkash
    Post count: 0

    Yes,

    Can confirm that voltage measured with another DMM actually reads the displayed 18.68 volts

    Drok
    Keymaster
    Post count: 2783

    Hello Skashkash

    Could you please request replacement through Online Return Center?  As items are stored in Amazon warehouse, they  will deal with shipment and replacement or return  on behalf of seller.

    Best regards.

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