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VC electro-motor?

2008-12-01 by Denis Gökdag

Hi all,

i want to build myself a little VC electro motor, you know, one of  
these little model-plane 12V motors but with VC RPM. It's not supposed  
to track V/oct cleanly, just be somewhat predictably controllable via  
a CV.

I'm not much of an electronics genius, but i figured that i would use  
a non-inverting amp based on an OP-amp to buffer the CV, then use the  
output as the voltage to drive the motor (the second connector of the  
motor being connected to ground).  Obviously, the Op-amp would be  
powered by the a-100 +/-12 V, so the design should be able to output  
-12...12V to drive the motor (with the negative voltage reversing  
direction).

Does that sound about right?


cheers,
denis

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