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The parts i'm using most these days are powerex cm400du-12f. They have 2 igbts in the one package. For a controller we use the low side and tie the gate and emitter of the high side together so its always off. that way the body diode acts as the freewheel with the added advantage of very low inductance between diode and switch. Actuallt in the car i'm using two rather old fuji 800amp 1200v single devices. One as switch and one as diode. Driven by a standard revolt control board.
that said its not ideal and we do have an igbt driver board just coming available as far as i know.
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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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