Brushless DC motor with armature windings compensated by auxiliary windings
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United States of America Patent
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-
Sep 30, 2003
Grant Date -
Dec 12, 2002
app pub date -
Jun 12, 2001
filing date -
Mar 30, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A brushless DC motor with armature windings is compensated by auxiliary windings wound around linking parts of each pair of adjacent teeth of the slotted stator, to increase the number of effective turns, thus improving the torque constant and efficiency of the motor. The motor includes a slotted stator formed with a number of teeth, main windings concentrically wound around the teeth of the stator, auxiliary windings for compensating the main windings wound concentrically around the linking parts of the teeth and connected to the main windings, and a rotor with permanent magnets and a yoke.
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