Method and apparatus for reducing noise in a variable reluctance

Details Method and apparatus for reducing noise in a variable reluctance Method and apparatus for reducing noise in a variable reluctance

1998-04-20

2000-04-11

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318701, 318702, H02P 705

Patent

active

060491817

ABSTRACT:
A control circuit for a motor having at least two windings is used to optimize noise reduction by controlling the deenergization of each winding in a two-stage decay. The duration of the two-stage decay and particularly the first decaying current portion is controlled by a controller operatively coupled to a switch device. The duration of the first decaying current portion is varied between the various phases of the motor to provide optimum noise reduction.

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