Quote:
Originally Posted by MPaulHolmes
Since we are on the subject, you could also get the 300v mosfets, and the same RURG8060 diodes (they are good to 600v), and then some of the 300v capacitors in the same family as the ones you mentioned, and then your controller would magically be a maybe 220v 700amp controller. That's over 200 HP, all 200 HP from 0 rpm!! ya!
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Just a thought: switching losses go up quickly with voltage. Thus, your silicon temps get higher faster and your output current is limited. From my own experience, a 500v mosfet in a charger outputted 20A without issue when run from a 160VDC source (rectified 120VAC). When the same setup was run from a source twice the voltage (240VAC), the mosfet blew up at 8A.
Not to say that swapping out components won't have good results, but it may require better heatsinking and a bit of testing. I hope someone does it - I'm quite curious how it works out!