george graves wrote:I threw this together. Single sided, home etched. Based on Dave's plans:
I used ExpressPCB software, just cause it's so much quicker to quickly whip up a board for home etching(eagle can be a pain at times - footprints and all). Then I usually print it off as a PDF, and tweak the pads in illustrator for home etching (very much needed to make bigger pads, and such for the toner transfer method)
The only change I really made was running the opamp at 8 volts (7808) for a bit more range. It seems happy at 1 amp. Two amps and things start to really heat up. ;D I'm planning on making a second version down the road. Something arduino controlled with DACs, ADC, multiple mosfets, maybe a fan and a LCD. But this will do for now. All I really need is 500ma - 1000ma.
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