Hello! I want to use a PIC 12F675 to compare and switch with in a temperature regulator circuit. My problem is how I have to handle the high voltage and current 400/4 A ~ . It=B4s possible to drop this to a supply voltage +5V=3D with any components without to cause to much heat. Can I use a triac to switch the phase on/off with the PIC? Will be grateful for any kinds of suggestions. Regards =C5keN -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads