MOTION: controlling the speed of a shaded pole motor

[The AList]

==> Automation List post by M Griffin...
To view or reply to this thread: http://www.control.com/thread/1254504149#1254561201


------------------------------------------------------------------------------------
Re: MOTION: controlling the speed of a shaded pole motor
------------------------------------------------------------------------------------
So far as I know, that is a synchronous motor and the speed depends on the frequency, not on the voltage. If you look in a standard motor textbook on how shaded pole motors work, you will see why.

You would need a circuit that outputs a variable AC frequency. That would probably involve a circuit that rectifies the AC to DC, and then produces an AC power output at a different (variable) frequency. 
------------------------------------------------------------------------------------


==> A Note from the Sender of this Message...
You are receiving this message because a subscription was entered for your address
for the Control.com Automation List.  To unsubscribe, send an email to us at 
forum at control.com requesting your removal from the subscription list.

This email was sent by: 
Control.com, Nerds in Control, LLC,
116 Brigham Hill Rd., N. Grafton, MA 01536, USA.

Copyright 2009 Nerds in Control, LLC. All rights reserved. 
Privacy and Legal Notices may be viewed at:
http://www.control.com/about.php