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From: yhfung@hkusub (Fung Yun Hoi)
Subject: Re: Help on DC motor drivers
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Date: Thu, 22 Apr 1993 15:34:34 GMT
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amorrison@vms1.cc.uop.edu wrote:
: I am having difficulty finding motor drivers for a project I am doing.
: My project requires a motor driver that will take TTL or CMOS level
: inputs and output a bidirectional constant current.  I have called SEVERAL
: electronic storesasking for this and either I am not specifying clearly the
: item I need orthis item does not really exist.  I have found the part I want in
: an old Sprague data book, however, everyone I called cannot find this part or
: anything comparable.  The part a could REALLY use is the Sprague UDN 2952.  It
: is to be used with the Fishertechnik robotic arm from New Micros release of the
: 68HC11. Any help would be greatly apreciated, specifically, part numbers of
: compatibles and/or sources for such items.  Thank you in advance.
: 
: Alan Morrison
: amorrison@vms1.cc.uop.edu
: 
The type of DC motor driver depends on the rating of motor you use. In
general, you need a circuit called H-bridge. You may use either
transistors and MOFET. You may consider the data book from SGS motion
controller data book, Siliconix MOFET data book, or Motorola MOFET data
book. Among these data book you may get some idea how to build a
H-bridge circuit.

Y.H. Fung
The Department of Electrical & Electronic Engineering
The University of Hong Kong.
