Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1999-04-07
1999-11-09
Riley, Shawn
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 65, 323222, H02M 3335
Patent
active
059826428
ABSTRACT:
A pulsed power supply of switched-mode power supplies, in particular for switched-mode power supplies with stand-by operation, has a main converter for the electrical isolation of primary and secondary circuits, as well as for transforming the voltages of the primary and secondary circuits. The pulsed power supply further has a pulsed second converter and a first closed-loop control circuit for an intermediate circuit voltage. The first closed-loop control circuit being assigned to the second converter and has a first output circuit connected on a downstream side of the second converter. A second closed-loop control circuit is provided for the intermediate circuit voltage. The second closed-loop control circuit is assigned to the second converter and is superimposed on the first closed-loop control circuit such that it can be activated at least temporarily or completely replaces the first closed-loop control circuit at least temporarily. The control time constant of the first closed-loop control circuit being greater than the control time constant of the second closed-loop control circuit.
REFERENCES:
patent: 5267133 (1993-11-01), Motomura et al.
Greenberg Laurence A.
Lerner Herbert L.
Riley Shawn
Siemens Aktiengesellschaft
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