Automatic control system

Details Automatic control system Automatic control system

1988-11-23

1989-10-17

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

'reset' systems

364162, G05B 1142

Patent

active

048749990

ABSTRACT:
In an automatic control system including first and second control circuits, at least the second control circuit includes a proportional circuit and a differentiation circuit in addition to an integration circuit. When an object is controlled by switching from the first control circuit to the second circuit, an error signal between a target signal and a feedback signal is first applied to the integration circuit of the second control circuit, and after the lapse of predetermined time, the error signal is applied to the proportional circuit and the differentiation circuit of the second control circuit. With the constitution, jumping phenomenon is prevented which would be caused from the proportional circuit and the differentiation circuit.

REFERENCES:
patent: 4346433 (1982-08-01), Rutledge
patent: 4549123 (1985-10-01), Hagglund et al.
patent: 4587470 (1986-05-01), Yamawaki
patent: 4623827 (1986-11-01), Ito
patent: 4733149 (1988-03-01), Culberson
patent: 4806836 (1989-02-01), Webb

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