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Old 04-10-2009, 10:13 PM   #862 (permalink)
MPaulHolmes
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Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
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And, it took several times of doing things out of that sequence before the bike's mosfets failed shorted. hmmm..... Oh the mystery of it all!

Me gustan los mysteries!

Having the controller control the contactor and pre-charge resistor would eliminate that potential problem.

I feel pretty sure that's what happened. The mosfets have a capacitive component to them. Each one had a 10kOhm resistor leading from gate to ground, so the overall resistance to ground was 1kOhm. I wonder what the time constant was?
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Last edited by MPaulHolmes; 04-10-2009 at 10:22 PM..
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