Converter input/output voltage balancing control

Details Converter input/output voltage balancing control Converter input/output voltage balancing control

1991-10-23

1993-07-20

Stephan, Steven L.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 71, 363 97, 363131, H02M 7537

Patent

active

052299287

ABSTRACT:
The invention relates to a method and a circuit arrangement for controlling power valves included in at least one converter (2,4) forming part of a converter circuit which on its input receives at least two DC voltages (U1,U2) and transmits current pulses respectively corresponding to these DC voltages to a common load (R.sub.L) via a common output filter (L1,C1), said controlling aiming at keeping the input DC voltages equal.
A control circuit (44) regulates the input voltages by shifting the starting times of the respective current pulses with respect to each other. Preferably, and particularly in continuous operation, the respective current pulses are shifted with respect to each other essentially without changing there widths.

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patent: 5060130 (1991-10-01), Steigerwald
patent: 5088017 (1992-02-01), Yaginuma et al.

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