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edown · 04-19-2009, 07:42 PM

Hey, Paul. That was pretty much what I was thinking..
I wonder, if you can take the outputs of 2 optocouplers and put them in series to make an AND-gate, then, your driver board would still be isolated from the controller board?? You would still need a voltage divider to drive the optocouplers, I think..

I'm glad you like my "cheesy” controller, I was just so glad to have it work even better than I had hoped.. I’ve blown out 4 IGBTs (300 and 400A) and a pile of mosfets, just thru ignorance..

04-19-2009, 07:42 PM	#987 (permalink)
edown EvEagle Join Date: Apr 2009 Location: Lansing, MI Posts: 40 Thanks: 0 Thanked 7 Times in 4 Posts	Hey, Paul. That was pretty much what I was thinking.. I wonder, if you can take the outputs of 2 optocouplers and put them in series to make an AND-gate, then, your driver board would still be isolated from the controller board?? You would still need a voltage divider to drive the optocouplers, I think.. I'm glad you like my "cheesy” controller, I was just so glad to have it work even better than I had hoped.. I’ve blown out 4 IGBTs (300 and 400A) and a pile of mosfets, just thru ignorance..