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Old 01-10-2013, 03:19 PM   #14 (permalink)
adamj12b
Master EcoModder
 
Join Date: Apr 2009
Location: Charlton MA, USA
Posts: 463

EVVette - '71 Chevy Corvette Coupe
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Quote:
Originally Posted by FieroChris View Post
I have been digging for several hours now.... looking for a schematic of where these big caps go....
I love adams and (something alaska) have been doing with the ring cap and the IGBT's



it looks soooo sweet...

question is:

do the caps go on the supply side of the motor controller?? this is the only reason a B+ goes to the motor controller ?? since the controller turns on and off the M- ??

does the third lug of the IGBT go to anything ??

how does the IGBT get wired up ??

B = battery -
C = motor - ??
A ????
I covered some of this in my Uprising thread, but i will do so here as well for informational purposes.

The cap goes on the supply side as close as possible.

The terminals on the IGBT are

A = Motor Negative (M-)
B = Battery Negative (B-)
C = Battery Positive / Motor Positive (B+/M+)

The most important factor of a motor controller capacitors is not the capacitance, but the ripple current ability. You must be able to control and withstand the current pulses or else you will destroy things.

-Adam
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www.EVVette.com - 1971 Corvette Coupe Conversion to all Electric!
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You can download RTD Explorer for the Cougar controllers at www.EVVette.com
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