Servo control apparatus

Details Servo control apparatus Servo control apparatus

1979-08-27

1982-02-09

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318571, 318341, G05B 1928

Patent

active

043152007

ABSTRACT:
A frequency-voltage converting system has a first sampler for sampling the input signal at a predetermined time interval a second sampler for sampling the input signal after elapse of a predetermined time period from said predetermined sampling time, and comparator for comparing the sampled values obtained respectively from said first and second samplers and providing the difference of said sampled values as a value proportional to the frequency of said input signal.

REFERENCES:
patent: 3551752 (1970-12-01), Haner
patent: 3878372 (1975-04-01), Sindlear
patent: 3944799 (1976-03-01), Brownell

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