System for controlling motor speed by altering magnetic...

Electricity: motive power systems – Plural diverse motor controls – Running-speed control

Reexamination Certificate

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Details

C310S179000, C310S180000

Reexamination Certificate

active

07045983

ABSTRACT:
The present invention provides a system for controlling the speed of a motor by altering the magnetic field of the motor. The system includes field modification module, and a motor having field windings and a rotor. The field windings are configured to receive a driving signal that generates a magnetic field causing a rotation of the rotor. The field modification module is proximate the motor and alters the magnetic field in response to an input signal thereby controlling the speed and torque of the rotor.

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