Xiaofan Chen wrote: > But how to simulate a constant power load (low power, > say around 1W-10W)? Buy one of these: http://www.circuitspecialists.com/prod.itml/icOid/7169 That's what I did.. -forrest -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist