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A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an  electric motor. A motor controller might include a manual or automatic means for starting and stopping the motor, selecting  forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against  overloads and faults.

An electric motor controller can be classified by the type of motor it is to drive such as permanent magnet, servo, series,  separately excited, and alternating current.

A motor controller is connected to a power source such as a battery pack or power supply, and control circuitry in the form  of analog or digital input signals.
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Last Updated: Sep 2009
What is Electric Motor Controls?
What is Electric Motor Controls?
Electric Motor Controls
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