Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2007-05-15
2007-05-15
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
Reexamination Certificate
active
11156351
ABSTRACT:
In a resonance converter for driving variable loads at first an input signal provided by a switch controlled by control means is converted to an output signal by a transformer. The transformer is dimensioned and connected such that a downward transformation ratio between input signal and output signal is between 5:1 and 100:1 when providing nominal power to the variable load. The switching frequency of the switch is controlled on the basis of a phase shift between a switch current and a load current at variable load and/or variable input voltage, a quantity dependent on the input voltage, as well as a quantity dependent on the output voltage. The inventive resonance converter further enables driving variable loads efficiently with the aid of a transformer.
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Deboy Gerald
Radecker Matthias
Berhane Adolf
Fraunhofer-Gesellschaft zur Foerderungder Angewandten Forschung
Glenn Michael A.
Glenn Patent Group
Infineon - Technologies AG
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