IN IN937MU2014A

A SENSOR ARRANGEMENT FOR HIGH RESOLUTION POSITION SENSING IN CLOSED LOOP MOTOR CONTROL.

Abstract

A sensor arrangement for high resolution position sensing in closed loop motor control for a motor, said motor comprising a main set of sensors consisting of a first main sensor, a second main sensor, and a third main sensor, each of said main sensors being spaced apart 120° electrically from each other, said sensor arrangement further comprises: at least a first level of auxiliary set of sensors consisting of at least three sensors including a first level first auxiliary sensor, a first level second auxiliary sensor, a first level third auxiliary sensor, each of said auxiliary sensors per level being displaced in a pre-determined manner with respect to a corresponding main sensor.

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