Feedback system control device and applications in amplifiers an

Details Feedback system control device and applications in amplifiers an Feedback system control device and applications in amplifiers an

1990-08-30

1991-12-17

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318621, 318632, 318609, 364165, 364164, 330151, G05B 1300

Patent

active

050737473

ABSTRACT:
A feedback system control device includes an adder producing a control signal from a feed forward signal and a correction signal. A system which processes the control signal drives the feedback system, which produces an output signal. A feed forward circuit, e.g., a four-pole network, receives the input signal and produces the feed forward signal. An error amplifier in the corrector processes the difference between the input signal and the output signal to produce an error signal. A corrector produces the correction signal from an input signal and this error signal. Two processors in the corrector each receive the error signal and produce respective modification signals between which there is a relative phase shift. An adder sums the modification signals to produce the correction signal.

REFERENCES:
patent: 4341986 (1982-07-01), Browder
patent: 4885676 (1989-12-01), Zweighaft
patent: 4904912 (1990-02-01), Yamamoto
patent: 4914365 (1990-04-01), Murakami et al.
Patent Abstracts of Japan, vol. 8, No. 6 (P-247)[1443], Jan. 12, 1984; & JP-A-58 169 202 (Yamatake Honeywell K.K.), 10/5/1983.

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