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Originally Posted by arber333
AH! I recommend you repair that ontroller since usually its just the IGBT and driver chip that are destroyed. Its like $100 and some skill.
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It would be GREAT if I could fix the controller. I just need to reverse engineer the circuit and figure out what part of it stopped - the transistor stage, the optocoupler, or the components in the big black block that I can't see into.
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I made my 3phase controller and i had water cooling working, but i burned IGBT still when i reved motor and released clutch, bam!
I simply replaced IGBT and affected driver chip together with its DCDC supply brick. Took like 2 days since i had everything on stock.
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Were there scorch marks? How did you know it was the IGBT? Is there a simple test I can do to test the IGBT?