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Thread: rugged or fast body diode

  1. #1
    Beginner Beginner MOSI is on a distinguished road
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    Feb 2017

    rugged or fast body diode

    Hello there,

    I am reading the data sheet of CoolMOS and something comes
    into my mind...
    Why is there a need for a rugged or fast body diode?

  2. #2
    New Member New Member design_God is on a distinguished road
    Join Date
    Feb 2017
    Most resonant circuits are half- or full-bridge topologies (2 or 4 transistors). As transistors are switched on and off, energy can be left in the transistor and this can cause failure.
    Due to switching times if this only happens occasionally a rugged body diode is sufficient (CoolMOS™ C6/E6 series). If due to fast transition tomes it happens continually then a fast body diode is required to make sure all the energy will leave the transistor (CoolMOS™ CFD2 series).

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