Circuit arrangement for maintaining the speed of a DC motor cons

Details Circuit arrangement for maintaining the speed of a DC motor cons Circuit arrangement for maintaining the speed of a DC motor cons

1974-05-02

1976-03-16

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318327, H02P 506

Patent

active

039449017

ABSTRACT:
Circuit arrangement for stabilising the speed of a d.c. motor which is controlled via a control amplifier, and drives a tacho-meter which is connected between the bases of a "long-tailed pair," a tuned circuit being included between the collectors which is tuned to the tacho frequency and which attenuates the other frequencies, the voltage across the tuned circuit being applied to the control amplifier via a charge pump.

REFERENCES:
patent: 2809339 (1957-10-01), Guggi
patent: 3233163 (1966-02-01), Mishima
patent: 3599063 (1971-08-01), Nanal
patent: 3665276 (1972-05-01), Fujii

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