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My original igbt design use 2 x 1500uf 450v and 2 x 4700uf 450v caps. They don't even warm up. Driving for over a year. My motorcycle controller uses 2 x 6800uf 250v and my new liquid cooled design 3 x 4700uf 400v. My theory being that its a pain to deal with lots of little pcb mount caps and its really a game of swings and roundabouts. I also used 1uf 400v film caps. one across each of the big boys.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
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