Brushless motor speed control

Details Brushless motor speed control Brushless motor speed control

1986-03-31

1988-01-19

Shoop, Jr., William M.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318603, 318254, 318439, 318327, 318314, 318318, H02P 602

Patent

active

047206632

ABSTRACT:
A brushless DC motor control circuit for efficiently controlling motor speed is described. A digital circuit for providing centered pulse turn-on during that period when the specific winding is capable of providing torque for the desired direction of rotation to the rotor is described. Each phase has its own timing circuit including an initial delay-time interval and an on-time interval. These time intervals are set to obtain desired motor speed and efficient motor operation.

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