Disturbance-limiting circuit of redundant type for regulation eq

Electric power conversion systems – Current conversion – Having plural converters for single conversion

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361 18, 361111, H02J 114

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active

053574176

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.

REFERENCES:
patent: 4644498 (1987-02-01), Bedard et al.
patent: 4729086 (1988-03-01), Lethellier
patent: 4860188 (1989-08-01), Bailey et al.
patent: 5027002 (1991-06-01), Thorton
patent: 5031180 (1991-07-01), McIver et al.
patent: 5122726 (1992-06-01), Elliott et al.

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