Method and apparatus for controlling a digital controlled brushl

Details Method and apparatus for controlling a digital controlled brushl Method and apparatus for controlling a digital controlled brushl

1981-02-26

1983-03-08

Truhe, J. V.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318138, 318254, H02K 2904

Patent

active

043762620

ABSTRACT:
There are provided a method of and an apparatus for controlling a pulse controlled brushless motor to immediately pull-in the motor to a predetermined rotational speed. The method has the steps of encoding rotational condition of a rotor into an electric signal, detecting the encoded signal to determine whether the rotor is in rotation or not, synchronizing a signal of a pull-in pulse rate with a clock pulse when the rotor is not in rotation and synchronizing the encoded signal with the clock pulse when the rotor is in rotation to form an input pulse train. The input pulse train is supplied to a peripheral circuit to excite the motor.

REFERENCES:
patent: 3411058 (1968-11-01), Madsen et al.
patent: 3766462 (1973-10-01), Kubo et al.

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