Single-sensor based commutation of multi-phase motor

Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control

Reexamination Certificate

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Details

C318S400140, C318S400380, C318S400030

Reexamination Certificate

active

07423394

ABSTRACT:
System, method, and apparatus for commutating and controlling a multi-phase motor using one output rotor sensor and circuitry that measures time between rotor pole-to-pole transitions is disclosed. The exemplary system, method, and apparatus may utilize the polarity of the single-output rotor sensor and the measured time between the polarity transitions detected by the single-output rotor sensor.

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