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Old 05-17-2011, 02:02 PM   #4 (permalink)
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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.
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.
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