Insertion integrating controller

Details Insertion integrating controller Insertion integrating controller

1974-03-05

1976-03-23

Wayner, William E.

Electricity: motive power systems

Positional servo systems

'reset' systems

236 78D, G05B 1142

Patent

active

039462978

ABSTRACT:
A proportional plus integral controller connectable in a conventional proportional control loop of a process control system is selectively operable in a proportional only mode or a proportional plus integral mode in accordance with the positioning of a mode select switch and exhibits substantially bumpless forward transfer from proportional only to proportional plus integral operating modes.

REFERENCES:
patent: 3197711 (1965-07-01), Richardson
patent: 3221257 (1965-11-01), Ohlson
patent: 3391317 (1968-07-01), Bell
patent: 3441836 (1969-04-01), Riley
patent: 3510737 (1970-05-01), Brown et al.
patent: 3842615 (1974-10-01), Reigel et al.

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