Article View: comp.robotics
Article #1214Small motor amps
From: mkb
Date: Mon, 18 Mar 1991 19:39
Date: Mon, 18 Mar 1991 19:39
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1133 bytes
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
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Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac,att!emory!wuarchive!udel!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!netnews 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