GENERATING A COIL SWITCHING SIGNAL FOR A BRUSHLESS DC MOTOR

Some embodiments provide a system that generates a coil switching signal for a brushless DC motor. During operation, the system determines a magnetic field of the brushless DC motor at a first time and a magnetic field of the brushless DC motor at a second time. Then, the coil switching signal is ge...

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Bibliographische Detailangaben
Hauptverfasser: TSAY CHING-YUH, CHI CHUAN HUNG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Some embodiments provide a system that generates a coil switching signal for a brushless DC motor. During operation, the system determines a magnetic field of the brushless DC motor at a first time and a magnetic field of the brushless DC motor at a second time. Then, the coil switching signal is generated based on a relationship between the magnetic field determined at the first time and a first predetermined threshold, and the magnetic field determined at the second time and a second predetermined threshold.