question about flyback

Discussion in 'General Electronics Chat' started by TAKYMOUNIR, Aug 14, 2011.

  1. TAKYMOUNIR

    Thread Starter Active Member

    Jun 23, 2008
    351
    1
    diode in primary side of transformer which help dissipate energy from leakage inducatance of the primary should be fast reverse recovery my question is what if slow what will happen
    and second question what is the different between force revese recovery and reverse recovery in FET OR IGBT
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    The diode will act like a short circuit, as "standard" diodes turn on fast enough, but are very slow to turn off. This leads to high power dissipation, and diodes popping like popcorn.
     
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  3. praondevou

    AAC Fanatic!

    Jul 9, 2011
    2,936
    488
    Where is the diode in a standard flyback converter on the primary side of the transformer, if not as part of a RCD snubber as I posted in your other thread?
     
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