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Old 03-23-2010, 02:00 AM   #3251 (permalink)
MPaulHolmes
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Join Date: Feb 2008
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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I finally got the GCode written for the 1000amp controller, and etched both sides of a prototype. I am also mostly done with drilling the holes in the PCB, and the heat spreader is all nice and milled super flat and shiny. I sanded it down with 1500 grit sand paper. I'm debating maybe only putting on like 5 - 7 mosfets and 5-7 freewheel mosfets just for the prototype, so it would only be a 500-700amp controller, just for testing purposes. I don't have a motor/coupler/anything that can really test 1000 amps safely. I mostly want to make sure everything turns off and on when it should. There's not a lot of room for error with synchronous rectification.

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