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Old 03-23-2011, 06:47 PM   #4535 (permalink)
isaac_alaska
EcoModding Apprentice
 
Join Date: Mar 2011
Location: alaska
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Thanks jack. that makes a lot more sense now that i see how they all get connected together. Looks like i'll be getting a few more igbt's...and probably put these up for sale if anyone wants them. i grabbed them while they were available but it looks like it's much better to go with the dual package.

I think the only other question that's burning in my mind is where do the filter caps get placed? from the other motor controller power board schematics i've looked it, it seems like one set of caps goes directly in parallel with the motor connections, and the other set gets tied from motor + to ground. I'm not seeing how the capacitors get pre-charged though....and i know pre-charge is important because of what we did to our logisystems controller....it turned into a big hot rocket engine for about thirty seconds. not something i want to repeat
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