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From: mkb@rover.ri.cmu.edu
Newsgroups: comp.robotics
Subject: Small motor amps
Message-ID: <1991Mar18.193938.14805@cs.cmu.edu>
Date: 18 Mar 91 19:39:38 GMT
Sender: netnews@cs.cmu.edu (USENET News Group Software)
Organization: Field Robotics Center
Lines: 11

I'm looking for a source of bare motor amplifiers. Nothing fancy, just
something that will switch its output between ground and +24VDC at 10-15 amps
(float would be nice, too). PWM will be produced up stream. I'd rather provide
my own heat sinking. I don't think such a thing should be too complicated, but
our home brew attempt (with a push/pull FET pair and some compensation for the
slower P-channel device) suffers a bad case of ringing induced, i believe, by
back EMF from the motor. Any pointers (or even your favorite design) would be
greatly appreciated!

        Mike Blackwell          mkb@rover.ri.cmu.edu
        The Robotics Institute, Carnegie Mellon University