Motors and control methods thereof

Details Motors and control methods thereof Motors and control methods thereof

2004-12-20

2008-12-02

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Antihunting or damping

C318S400210, C318S400410, C318S430000

Reexamination Certificate

active

07459876

ABSTRACT:
Motors comprising stators and rotors having a plurality of north poles and south poles and methods of controlling the same. A first sensor and a second sensor are provided. The first and second sensors are disposed on the stator in a manner that the first and second sensors never simultaneously detect boundaries between the north and south poles during rotation of the rotor. If any one of the first and second sensors continuously detects a north pole or a south pole for a predetermined duration, the motor is shut off.

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