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Old 02-25-2009, 09:32 AM   #31 (permalink)
jyanof
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Quote:
Originally Posted by MPaulHolmes View Post
I can help with that! There's no way we need a BQ2031! YA! Way to go Joe! I'll study your schematic more later. I have to do stupid school work right now! Makes me mad, way down deep. $140 for a 144v charger would be really really really nice.
Excellent! I taught for two years... I know what you mean.

I can't imagine the control logic is that difficult. Maybe it's tough to have constant current and/or constant voltage control? I don't think the system would be dynamic enough to need fancy PID control... (like the current limiting suggested for your controller) I have a 12V power supply that I can hook up to a 6V battery to charge it and manually adjust to the desired current, so it seems like a computer could do it without missing a beat.

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