Newsgroups: comp.robotics
Path: brunix!uunet!haven.umd.edu!darwin.sura.net!newsserver.jvnc.net!newsserver.technet.sg!ntuix!ntuvax.ntu.ac.sg!ba1634807
From: ba1634807@ntuvax.ntu.ac.sg
Subject: DC-servo motor
Message-ID: <1993May2.105710.1@ntuvax.ntu.ac.sg>
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Organization: Nanyang Technological University - Singapore
Date: Sun, 2 May 1993 02:57:10 GMT

I wonder if anyone has any material to recomend on DC servo motor of how
to operate and things to take care of ?

I am operating a DC servo motor by PWM techniques and the frequency of 
of operation is restricted to 17khz with a duty cycle ranging from 0 to
80%.. Because of a lot of swicthing(h-bridge darlington pair) in as short as
a few hundreds of micro seconds, the current shoot to as much as 3 Amps
from 0.2 Amps. I was that one could make the supply to motor constant(the
current rise stay constant) and just dont know how ?

Is it the frequency, duty cycle of the biasing of the h-bridge?
 
