Disturbance-limiting circuit of redundant type for regulation equipment
US5357417A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Jun 25, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B9/03
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A disturbance-limiting circuit for regulation equipment connected to an actuator controlling a process in which the actuator is controlled from a reference generator unit (1) via a plurality of regulator modules (3A, 3B, . . . , 3N) having their outputs connected to a common point (UP) so that the control value provided to the actuator at said point corresponds to the mean value of the respectively-provided voltages. The circuit is constituted by a voting circuit comprising modules (4A, 4B, . . . , 4N) each inserted between the output of one of the regulator modules and a corresponding respective resistor (RA, RB, . . . , RN), connected to the common point (UP). Each voting module includes an impedance adapter (7A) having its input connected to a regulator module and having its output connected to the corresponding respective resistor, said output is also connected via a resistor (9A) firstly to the input of the adapter via a clipping circuit (8A) and secondly to a point (UR) common to all of the adapters of the voting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.