Electricity: motive power systems – Synchronous motor systems – Armature winding circuits
Reexamination Certificate
2007-07-17
2007-07-17
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Armature winding circuits
C318S724000, C318S738000, C318S748000, C318S749000, C318S751000, C318S768000
Reexamination Certificate
active
11226213
ABSTRACT:
A single-phase induction motor and a method for reducing noise in the same, which can eliminate unbalance between magnetomotive forces of main and auxiliary windings in a stator of the motor, thereby implementing a low noise, low vibration motor, and can also achieve balance between the magnetomotive forces of the stator windings in the entire running range of the motor, and can further achieve balance between the magnetomotive forces of the stator windings on the basis of temperature increase of the motor as it runs. The amplitude of a main-winding current flowing through the main winding in the stator is controlled to be equal to the amplitude of an auxiliary-winding current flowing through the auxiliary winding in the stator, and the phase difference between the main-winding and auxiliary-winding currents is controlled to be maintained at a predetermined value.
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Hong Seung Gee
Joo Jae Man
Lee Jun Hwa
Donovan Lincoln
Horn Robert W.
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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