Method and means for driving a brushless D.C. motor

Details Method and means for driving a brushless D.C. motor Method and means for driving a brushless D.C. motor

1987-06-25

1988-08-09

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318342, 318430, 318599, H02P 602

Patent

active

047630523

ABSTRACT:
A brushless D.C. motor drive circuit provides full available D.C. bus voltage to the motor during periods of motor speed acceleration and deceleration and modulated D.C. voltage to the motor during periods when no demands are made on the motor to accelerate or decelerate, thus avoiding time-lag problems inherent in the type of conventional brushless D.C. motor drive circuits which employ pulse-width modulators to continuously provide modulated D.C. voltage to the motor.

REFERENCES:
patent: 3349309 (1967-10-01), Dannettell
patent: 4081725 (1978-03-01), Schmidt et al.
patent: 4307326 (1981-12-01), Fukushima et al.
patent: 4527102 (1985-07-01), Gotou
patent: 4583028 (1986-04-01), Angersbach et al.
patent: 4631458 (1986-12-01), Furuichi
patent: 4665350 (1987-05-01), Angi et al.

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