igbt control circuit

Discussion in 'The Projects Forum' started by chaitrali, Sep 27, 2008.

  1. chaitrali

    Thread Starter New Member

    Sep 27, 2008
    1
    0
    Hi
    i m working on induction heating machine. uses a half bridge inverter using igbt..
    please suggest me about igbt control circuits using
    1. microcontroller
    2. discrete
    3.plc
    please guide about firing circuits too
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    The most efficient and easy way to control it is to use a microcontroller or a PLC with transistor outputs. You can do it with discrete components but it will be more complicated, bigger PCB and you can not modify it later easily. To drive the IGBT use an emitter follower because of its low output impedance to charge the gate of the IGBT fast as not remain in the linear region for a long time and get overheated.
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,638
    2,344
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