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How do i check IGBT with a multimeter

Discussion in 'General Electronics Discussion' started by malik matti, Oct 25, 2015.

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  1. malik matti

    malik matti

    2
    0
    Oct 25, 2015
    pls how do i check IGBT with a multimeter.
     
  2. Martaine2005

    Martaine2005

    3,687
    1,004
    May 12, 2015
    This nice lady will show you.
     
  3. thaers3d

    thaers3d

    5
    1
    Nov 7, 2015
    1. Short out G1 to E1 and G2 to E2. With a multimeter set to check diodes, check across the C1- C2E1 junction. With the (+) probe on C1 and the (-) probe on C2E1, you should see an open circuit. Switch the probes. You should see a diode drop on the meter.
    2. Check across the C2E1-E2 junction. With the (+) probe on C2E1 and the (-) probe on E2, you should see an open circuit. Switch the probes. You should see a diode drop on the meter.
    3. With a 9 volt* battery, connect the (+) terminal to G1 and the (-) terminal to E1. Using your meter (set to check diodes), should see a diode drop across the C1-C2E1 junction in both directions now. Connect the (+) terminal to G2 and the (-) terminal to E2. You should see a diode drop across the C2E1-E2 junction in both directions here as well.
    4. If the IGBT passed all of the above tests, the IGBT is good.

    * You may be able to use a second multimeter as a voltage source by setting it to check resistance at its lowest available resistance scale. The (+) probe is the positive side. However, not all meters provide enough DC voltage for this, and may even give you false readings. A known DC voltage from 8 to 15 volts is recommended instead.
     

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