Method and apparatus for movable element position detection...

Details Method and apparatus for movable element position detection... Method and apparatus for movable element position detection...

2004-09-30

2008-09-30

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S400040, C318S400140, C318S400350, C318S606000, C318S599000

Reexamination Certificate

active

07429841

ABSTRACT:
A method and circuit for detecting the position of the movable element of an electrically commutated machine. The method and apparatus allow detection of the back electromagnetic force (BEMF) waveform with all legs of the machine energized by mathematically removing the applied voltage from the measured voltage across the phases.

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