Revolution speed controller using both analog and digital contro

Details Revolution speed controller using both analog and digital contro Revolution speed controller using both analog and digital contro

1975-02-20

1976-01-13

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318327, 318317, H02P 506

Patent

active

039327949

ABSTRACT:
A controller, such as for maintaining a selected constant rotational speed of a controlled unit, uses analog signals and circuits for fast coarse correction and uses slower digital signals and circuits for additional fine correction. A device is provided for conveniently and accurately changing the setting of the reference analog and digital signals used in the controller.

REFERENCES:
patent: 3543116 (1970-01-01), Haner
patent: 3559017 (1971-01-01), Dinger
patent: 3559018 (1971-01-01), Fournier
patent: 3689816 (1972-09-01), Matthey

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