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Protection of IGBT

There is a problem to protection of IGBT switch, because a load is massive inductive one. The IGBT is 23n60 and the load is high pressure mercury lamp (balast=1/3Henry). Whenever the switching circuit is on, the IGBT break down at once. How can I protect the IGBT?

Reply to
v_gh2000
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What is your switching frequency?

Reply to
kell

low frequency (100Hz)

Reply to
v_gh2000

Use a diode around your inductive load to clamp the voltage.

Reply to
Yzordderrex

And google "snubber."

Reply to
kell

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