Digital motor speed controller

Details Digital motor speed controller Digital motor speed controller

1980-03-14

1981-11-03

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318314, 318341, H02P 516

Patent

active

042988322

ABSTRACT:
A switching circuit turns on at the beginning of a first clock signal and turns off in response to a gyroscope shaft detector signal. During the time the switching circuit remains on, a counter counts the cycles of a second clock signal. This resultant count is employed as an error signal for adjusting the output frequency of a pulse generator which is connected to a gyroscope motor. A feedback loop is created between the aforementioned components for achieving a preselected constant gyroscope motor speed.

REFERENCES:
patent: 3646417 (1972-02-01), Cassie et al.
patent: 3836756 (1974-09-01), Yammoto et al.
patent: 3838325 (1974-09-01), Kobayashi et al.
patent: 3950682 (1976-04-01), Dohanich, Jr.

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