Circuit arrangement for supplying a load

Details Circuit arrangement for supplying a load Circuit arrangement for supplying a load

1990-08-23

1992-05-12

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307571, 363 49, 363 98, 315307, H03K 1751, H03K 1756, H02M 753

Patent

active

051130858

ABSTRACT:
A circuit arrangement is described for supplying a load (1) from a direct voltage source (14) through a switch bridge (3 to 6), by which the direct voltage source (14) can be connected in alternating polarity to the load (1), comprising a control circuit (17) for controlling the switch bridge (3 to 6); and including a circuit for precisely adjusting and controlling a given D.C. component through the load by a device for measuring a current (I1) through the load (1) and supplying a corresponding measurement value and in that the control circuit (17) comprises an integration stage (18) for integrating the measurement value, a comparison stage (20) for comparing the integrated measurement value with a reference value (of 21) and for supplying a switching signal (at 22) when these values correspond to each other and a signal-producing stage (23) for resetting the integration stage (18) to an initial state and for reversing the polarity of the current (I1) through the load (1) upon the occurrence of the switching signal (at 22).

REFERENCES:
patent: 3585406 (1971-06-01), Colter
patent: 4118641 (1978-10-01), Lannuzel
patent: 4694383 (1987-09-01), Nguyen et al.
patent: 4710686 (1987-12-01), Guzik
patent: 4866592 (1989-09-01), Fujii et al.
patent: 4879641 (1989-11-01), Rossi et al.
patent: 4939633 (1990-07-01), Rhodes et al.

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