From: Joe Curran 
To: 'Mel Bartels' , atm{at}shore.net
Reply-To: Joe Curran 


I'm looking at Chuck Shaw's motor circuit in his equatorial platform .doc
and in it he's showing a DC motor control based on the LM317T.

Now granted this is open loop...  Is the feedback requirement the reason
for all the extra effort?

How about an AC synchronous motor?





>>> I'm still not sure how I'd wire that up.

IIRC, the op amps are wired in series.  Another approach is to use DACs and
go all digital.

Mel Bartels

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