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Unread 19-02-2011, 21:40
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Mike Betts Mike Betts is offline
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Re: Window Motor question

Grim,

The window motor has a positive coefficient temperature (PTC) resistor built in. When it gets hot, the resistance increases causing less current and voltage being delivered to the motor windings.

You are asking the motor to do too much. Unless you can identify frictional losses which can be minimized, a redesign is warranted...

Regards,

Mike
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Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...