Control circuit for motor

Details Control circuit for motor Control circuit for motor

1984-06-13

1986-01-28

Weldon, Ulysses

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318317, 318331, G05B 500

Patent

active

045674094

ABSTRACT:
The disclosed motor control circuit includes a speed loop controlling the rotational speed of the rotor of a motor. A phase control loop controls the rotational phase of the rotor, and a voltage control loop controls a voltage applied to a winding of the motor according to the current flow through the winding. The voltage control loops maintains the rotational speed and rotational phase constant despite variations in the load torque. The control circuit is especially well-suited for motors having a small torque.

REFERENCES:
patent: 3696278 (1972-10-01), Kuniyoshi et al.
patent: 3743906 (1973-07-01), Torok
patent: 3855511 (1974-12-01), Smith
patent: 3878446 (1975-04-01), Brandt
patent: 3983464 (1976-09-01), Peterson
patent: 4119897 (1978-10-01), Skoog
patent: 4284942 (1981-08-01), Bigley et al.
Robert J. Traister, "All About Electric and Hybrid Cars", Tab Books Inc., Blue Ridge Summit, Pa. 17214, 1982, pp. 55-57.

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