On 7/6/06, Wouter van Ooijen wrote: > I have a bunch of nice 7.2V geared DC motors. Could I run these motors > at let's say 24V if I keep the PWM on-percentage sufficiently low, I > would guess (7.2/24)^2 = 0.09 at 24V would corespond to 1.0 at 7.2V? Or > doesn't it work that way with motors? I don't think. The current pulse at 24V will eat the brushes quite soon. Not talking about the power you've got at the motor shaft with very low dutycycle. Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist