Newsgroups: comp.robotics
Path: brunix!sgiblab!swrinde!network.ucsd.edu!news.cerf.net!iat.holonet.net!bsmall
From: bsmall@iat.holonet.net (Brad Smallridge)
Subject: Re: Stepper motors
Message-ID: <C4sLzo.Kro@iat.holonet.net>
Organization: HoloNet National Internet Access BBS: 510-704-1058/modem
References: <1pdah8INNqdc@dns1.NMSU.Edu>
Date: Thu, 1 Apr 1993 06:57:22 GMT
Lines: 9

mcole@scotty (COLE) writes:
: I am having trouble driving a stepper motor.  I am driving each of the  
: phases with an IRF510 FET.  At around 1KHz the motor just sits there and  
: hums.  Any suggestions?
Well is it a Bipolar stepper? Are you using a high side driver chip? Do
you have access to a scope? Are you using a current chopper? If not what
is your load resistor? And what is your power supply voltage? And what is
the current rating per phase on the motor?

