Sorry, I posted the file. http://gffaial.homestead.com/power.html I want to control the out voltage of this power supply using a pic12c508. The out put voltage needs to vary from 5-12V @ 7A. I attached the schematic power.jpg Can someone help me! Thanks, Gary -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics