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US09379650B2 Enhanced inductive sense using mutual inductance 有权
增强感应感应使用互感

Enhanced inductive sense using mutual inductance
Abstract:
Methods and apparatus for determining rotor position in a motor including a rotor and stator windings. The method includes measuring inductive sense values for each pair of the stator windings by performing an inductive sense routine on the motor, measuring stator winding voltage values, induced by mutual inductance between windings, for each of the stator windings by performing a mutual inductance sensing routine on the motor, and determining the rotor position based on the inductive sense values and the stator winding voltage values.
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