Controller for brushless DC motor without position sensor

Details Controller for brushless DC motor without position sensor Controller for brushless DC motor without position sensor

1996-03-14

1997-12-30

Wysocki, Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02P 500

Patent

active

057034494

ABSTRACT:
A controller according to one embodiment restarts the motor when a commutation timing signal is mismatched with an output pattern mode. A controller according to another embodiment compares the motor speed with the reference signal to change the chopper frequency in accordance with the compared value. A controller according to still another embodiment continuously changes the chopper frequency in accordance with the motor speed. A controller according to yet another embodiment inhibits the position detection immediately after commutation in accordance with the current flowing through the motor. A controller according to another embodiment detects the position of the rotor in accordance with the waveform of the current flowing through the motor.

REFERENCES:
patent: 3949283 (1976-04-01), Okuyama et al.
patent: 4617675 (1986-10-01), Ashikaga et al.
patent: 4638223 (1987-01-01), Tajima et al.
patent: 4641066 (1987-02-01), Nagata et al.
patent: 4673849 (1987-06-01), Sears et al.
patent: 4678973 (1987-07-01), Elliott et al.
patent: 4700116 (1987-10-01), Inoue et al.
patent: 4743815 (1988-05-01), Gee et al.
patent: 4814676 (1989-03-01), Van Hout
patent: 4874993 (1989-10-01), Tanaka et al.
patent: 4928043 (1990-05-01), Plunkett
patent: 4988939 (1991-01-01), Reichard et al.
patent: 5001405 (1991-03-01), Cassat
patent: 5017845 (1991-05-01), Carobolante et al.
patent: 5233275 (1993-08-01), Danino
patent: 5345156 (1994-09-01), Moreira

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