Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!decwrl!pa.dec.com!nntpd.lkg.dec.com!sousa!sndpit.enet.dec.com!smith From: smith@sndpit.enet.dec.com (Willie Smith) Newsgroups: comp.robotics Subject: Re: DC Motor Controllers Message-ID: <1283@sousa.ltn.dec.com> Date: 5 Jun 91 19:29:09 GMT Sender: newsa@sousa.ltn.dec.com Organization: Digital Equipment Corporation Lines: 16 In article <1991Jun3.220425.12281@osceola.cs.ucf.edu>, wampner@acme.ucf.edu (Eric Wampner) writes... >To put it bluntly, we need an H bridge controller able to >handle more power. Ideally a 24V at 8 Amp with spikes of >20-25 Amps would suit us. I didn't use an H bridge due to excessive cost of transistors and voltage drop, but the the IRFZ series of FETs works really well. We use two IRFZ50s(?) in parallel (with a relay for reversing) for driving motors at 8 volts, 30 to 50 amps, and they don't even get warm... Willie Smith smith@sndpit.enet.dec.com smith%sndpit.enet.dec.com@decwrl.dec.com {Usenet!Backbone}!decwrl!sndpit.enet.dec.com!smith