Improved method and apparatus for movable element position detection in an electrically commutated machine

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 meas...

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Bibliographische Detailangaben
Hauptverfasser: YUNUS, HAROON I, WON, BUMSUK, MARVIN, RUSSEL H
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung: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.