Greetings, > I'd like to offer suggestions, and probably > many other people here would too. Can you post a > circuit, details of the mosfet (package, heatsink > type), in/out voltages and currents, and if you > have any cro data? I feel you have either under > heatsunk the fet or it's not switching quick or > hard enough. :o) > -Roman i would suspect the pcb layout more thanthe components choice. we actually built it according to the circuit and BOM list from Maxim's app. note. but it maybe backdate though, the app. note is from 1997 :) -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads