http://ww1.microchip.com/downloads/en/AppNotes/01444A.pdf An app note on using a dsPic in a grid feed converter. Appears to be based = around a 250W solar panel. Has info for both 120V/60Hz and 230V/50Hz. --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .