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When latch-up occurs in an IGBT

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+1 vote
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in Power Electronics by (27.1k points)
When latch-up occurs in an IGBT

(a) Ig is no longer controllable

(b) Ic is no longer controllable

(c) the device turns off

(d) Ic increases to a very high value

I have been asked this question during an interview.

Asked question is from IGBTs-2 topic in division Power Electronics Devices of Power Electronics

1 Answer

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by (45.1k points)
The correct choice is (b) Ic is no longer controllable

The best explanation: After latch-up the collector emitter current is no longer in control of the gate terminal.

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