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Old 11-25-2009, 09:25 PM   #2625 (permalink)
Weisheimer
Mark Weisheimer
 
Join Date: Aug 2009
Location: Columbus Ohio
Posts: 62
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Quote:
Originally Posted by jackbauer View Post
I'm using 2 igbts. One as the switch one as the freewheel with its gate - emitter tied together. they are rated at 1000amps 1200volts. That rating drops to 800amps at a tj of 125c. I drew about 300 ish amps for the climb and a peak at 400 amps at the very top where the hill is steepest. I'd guess if i had more voltage the current would have been less. I was amazed really. 4 people in the car and a boot full of tools! Nothing i tried would stop that motor! Slow it down yes but stop it no chance and that was with only 36v on the shunt field. It can take 80.
Jack,

I got a kick out of your video. It reminded me of "tests" I have done.
I'm just glad no one has a camera when I do mine!
I have a question too. I watched several of you videos and I can't
tell if you have a gate drive circuit between the controller board
and your IGBT. Can you elaborate on that a bit?

Great Job!

Mark
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