Brushless drive system

Details Brushless drive system Brushless drive system

1987-06-05

1988-08-09

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

H02K 2908

Patent

active

047630493

ABSTRACT:
The present invention relates to a brushless drive system for brushless D.C. Motors which can be employed with known servo amplifiers and PWM amplifiers, and systems and includes a switch array for controlling the directional rotation of a brushless D.C. Motor where the switch array has at least one pair of bi-directional switches. The brushless drive system further includes a sensing apparatus for sensing the rotor position of a brushless DC motor, a selecting apparatus for selectively activating at least one pair of bi-directional switches of the switch array in response to a signal received from the sensing apparatus, and a power source connected to each pair of bi-directional switches of the switch array, the power supply being adapted to reverse voltage polarity to the selectively actuated pair or pairs of bi-directional switches of the switch array thus reversing the directional rotation of the brushless D.C. motor.

REFERENCES:
patent: 3529220 (1970-09-01), Kobayashi et al.
patent: 3559014 (1971-01-01), Rakes
patent: 3946292 (1976-03-01), Tanikoshi

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