From: "Mel Bartels" 
To: 
Reply-To: "Mel Bartels" 


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

How about an AC synchronous motor?
<<<

Yes, but that feedback circuit is not complicated and well worth it.

The AC synch motor is an excellent choice.  That was the standard in the
old days, back in the '60's and '70's before advent of digital drives.

Mel Bartels

--- BBBS/NT v4.00 MP