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Old 10-03-2009, 11:35 AM   #2338 (permalink)
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Following takes place between 3pm and 4pm:

Wired up a 12v nissan starter motor to the igbt and upgraded the wiring. It works! I bypassed the solenoid so it just runs the motor. Takes 30 amps to get it moving then ramps up to 60amps and full bore. My 7ah gell batt suffers a bit of "pack sag" at that current dropping to just under 10v. After about 30 seconds of running the igbt base plate was warm. About 30-40c i would guess but its only a 150 amps device , got no heatsink and sits on a wooden bench. So not bad for a first run.

next moves : 4 igbts in parallel , caps , 24v , two 12v starters in series for some white zombie type action!
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