Control circuit for a controller and a method of operating the same
US4415966A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Mar 10, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The method serves to control sluggishly reacting plants by controllers in which rapid changes in set value occur. The controller has an integral section and a proportional section separate from the I-section. The I-section receives a control deviation signal formed from the actual value and the set value, whereas the P-section is supplied with the set value. The output signals of the I-section and of the P-section act on the plant. The I-section is blocked for the duration of an abrupt change in the set value. As a result of this relatively short interruption in operation of the I-section, the control of the plant is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.