IGBT forward leakage current test

Discussion in 'General Electronics Chat' started by min, Sep 7, 2010.

  1. min

    Thread Starter New Member

    Sep 7, 2010
    2
    0
    Hi,
    I need help from you all.
    Currently Im testing IGBT forward leakage current.
    Forcing 20V to the VGE, then measuring at the same time.
    The measuring actually fluctuating a lot. Suppose correct measurement should be < 10uA, but it'll from pA to nA then uA jumping around.
    Am I measuring the correct forward leakage current?
    Need your expertise knowledge and help here.
    Thanks.
     
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
    2,358
    201
    If your ohmmeter lead polarities are correct that could indicate a leaky IGBT.
     
  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Absolute maximum VGE is typically ±20V for an IGBT.

    Perhaps you are pushing the limit too much. What do you measure at (say) VGE=10V?
     
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