Circuit and method for servo speed control

Details Circuit and method for servo speed control Circuit and method for servo speed control

1977-03-17

1979-04-10

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318318, H62P 500

Patent

active

041491173

ABSTRACT:
A circuit and method for controlling the speed of operation of a servo motor, wherein multiple speeds of operation can readily be controlled. A non-linear ramp voltage is generated in response to a first set of clock signals produced in response to electrical pulses from a tachometer coupled to the servo motor. A second set of clock pulses, also generated by the tachometer pulses, controls periodic sampling of the non-linear ramp voltage at various points along the ramp as a function of the desired speed of operation.

REFERENCES:
patent: 3361949 (1968-01-01), Brown et al.
patent: 3588654 (1971-06-01), Balazs
patent: 3634745 (1972-01-01), Agin
patent: 3657624 (1972-04-01), Nagano
patent: 3983316 (1976-09-01), Schopp

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