On Sat, 22 Apr 2006, Wouter van Ooijen wrote: >>> I can't test them for long on a loaded motor of the real system (the >>> mechanism would wear out quickly) so I used a bunch of >> lamps for a few >>> hours, IIRC 2A when at 100%, running at 70% PWM. >> >> Lamps won't simulate the inductive properties of a motor. > > correct, but any heating due to slow FET switching should be the same? > > BTW what would you guys use to simulate a loaded motor? The best I can > think of is a motor driving a dynamo with a load, but can that be > transformed to for instance an unloaded motor + a parallel resistor? A coil in series with a power resistor supplied by an auxiliary psu. Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist