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Old 08-11-2011, 09:32 AM   #4983 (permalink)
sawickm
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Quote:
Originally Posted by MPaulHolmes View Post
I think it was a design problem for the optocoupler to be on the control board, and the output to travel to the driver board. It is a signal with a tiny tiny current, and is more susceptible to noise. Even if it works perfectly well for flores, I've already made some changes and just need to get the new boards made.

Driver board that's 4 homemade isolated supplies. This is based on Fran's recommendations. Each isolated supply drives 3 mosfets. There's also an RC snubber for each mosfet on the driver board. It uses ceramic 2W resistors for snubbers since their inductance is so low.
Hi Paul,

How are the updates for the new revision of the 1000 amp controller coming?

Hope to see those new changes soon, and your new driver PCB too.

-Mark
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