On Thu, 26 Oct 2006, Erik Christiansen wrote: > While fooling with FET drive for a 200 watt DC motor, there was a fair > howl emanating from the motor when the PWM frequency passed through > mechanical resonances. I've read of ruined bearings in large motors, due
This is a subject that has come up a few times in comp.robotics.misc , along with solutions for stopping it, that I don't fully remember now. One thing I remember is that changing the PWM frequency can reduce or eliminate it. I think reducing mine helped. ========================================================== Chris Candreva -- [EMAIL PROTECTED] -- (914) 967-7816 WestNet Internet Services of Westchester http://www.westnet.com/ _______________________________________________ AVR-chat mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-chat
