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Old 08-17-2014, 12:21 PM   #914 (permalink)
MPaulHolmes
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Location: Maricopa, AZ (sort of. Actually outside of town)
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Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
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Holy cow! A regular old dual IGBT is enough for a boost converter that can do regen! I bought a 200amp 300uH inductor from Mouser a couple years ago that I could use in testing. It's not THAT heavy (it's my brother). I mean, it's ridiculously heavy, but not as just another component in a big fat car. Hmm... If you want to keep it as a separate object from the AC controller, I guess you would just need to tell the boost converter to switch to buck mode (switch connected to ground OFF, switch with the diode turned ON 100%). Then, the AC controller could command the current for regen.

I need to double-check this, but I'm pretty sure.

You don't need an input capacitor to the boost converter. Just the big fat inductor. Then, a fancy ring capacitor on the output... Maybe if the boost converter & inverter shared that cap, it would be fine. But it would need to be the same package so as to minimize stray inductance.
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Last edited by MPaulHolmes; 08-17-2014 at 12:28 PM..
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