Disk drive motor position detection using mutual inductance zero crossing
作者： Tan Du , Robert E. Whyte
DOI:
关键词: Zero crossing 、 Signal 、 Polarity (mutual inductance) 、 Control theory 、 Physics 、 Electric motor 、 Excitation 、 Inductance 、 Rotor (electric) 、 Voltage
摘要: The invention includes a method and apparatus for detecting the position of an electric motor rotor by sensing zero crossing or polarity change mutual inductance associated with motor. use provides consistent detection unaffected speed winding current, thus providing significant advantages over traditional back emf methods. may be detected measuring voltage signal in floating phase motor, filtering excitation components out measured signal, resulting signal.
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