Device and method for detecting rotor speed of a multiple...

Details Device and method for detecting rotor speed of a multiple... Device and method for detecting rotor speed of a multiple...

2007-10-30

2007-10-30

Tang, Minh N. (Department: 2829)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C318S754000

Reexamination Certificate

active

10805972

ABSTRACT:
A method for detecting rotation of a rotor of a multiple phase motor with bipolar drive is described, excluding a three-phase motor with bipolar drive with star connected coils or motor stator windings. The motor has at least a first and a second energizable motor stator winding. A voltage is sequentially and alternately sensed on the first and the second motor stator winding at or near the end of a period of a non-energised state thereof. An apparatus for detecting rotor speed is also provided.

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