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Puzzled, basic flyback converter

Discussion in 'Power Electronics' started by skenn_ie, Apr 19, 2020.

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  1. skenn_ie


    Sep 7, 2009
    Hi. Can anyone shed light on this trace ? A very basic flyback converter, channel 2 is the mosFET drain voltage, channel 1 is the transformer output. TEK0000.JPG
    rectifier with 4ohm loadWhy am i seeing ringing on the output during the ON phase of the primary ?. If I short the (schottky) diode, the ringing stops.
    Last edited by a moderator: Apr 19, 2020
  2. bertus

    bertus Moderator

    Nov 8, 2019

    Can you post a complete schematic?
    That way we can see what you are trying to do.

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