Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1984-02-06
1985-04-09
Witkowski, Stanley J.
Electricity: motive power systems
Switched reluctance motor commutation control
363 49, H02P 118
Patent
active
045104220
ABSTRACT:
A DC motor driving circuit includes an exciting coil switching circuit for selecting from among polyphase exciting coils of a brushless motor those coils to be excited and their excitation directions. An excitation current control transistor is connected between a DC excitation current supply line and a DC power supply. A timing signal producing circuit including a time constant circuit is produced so as to limit starting current at the time of starting of the motor. The excitation current control transistor is controlled by the timing signal at the time of starting of the motor.
REFERENCES:
patent: 3475674 (1969-10-01), Porterfield et al.
patent: 3879647 (1975-04-01), Hamilton et al.
patent: 4233557 (1980-11-01), Alberkrack
patent: 4236198 (1980-11-01), Ohsawa et al.
patent: 4251757 (1981-02-01), Akamatsu
patent: 4356437 (1982-10-01), Saito et al.
Ro Bentsu
Tokyo Shibaura Denki Kabushiki Kaisha
Witkowski Stanley J.
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