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Z-ARCHIVE-Energy Storage: Bidirectional Direct Current Converters
Search All Applications in Z-ARCHIVE-Energy Storage: Bidirectional Direct Current Converters
Application US20190245452
Published 2019-08-08
Bidirectional Flyback Converter Circuit
A bidirectional flyback converter circuit includes a transformer with inductively coupled primary and secondary windings, primary-side and secondary-side switching elements, wherein the primary winding and secondary windings are respectively connected to a voltage input and output, where the primary-side and secondary-side switching elements are respectively arranged in series with the primary and secondary windings, where a charge capacitor is connected via a first terminal to a common potential of the primary and secondary sides, where with a second terminal, the charge capacitor is connected via a first diode to a common potential of the primary-side switching element and primary winding and via a second diode to a common potential of the secondary-side switching element and secondary winding, and where a buck converter is arranged on the input or output side, through which a voltage present at the charge capacitor can be regulated to a predeterminable value.
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- 1. A bidirectional flyback converter circuit comprising:
a transformer with inductively coupled primary and secondary windings, the primary winding being connected to a voltage input of the bidirectional flyback converter circuit and the secondary winding being connected to a voltage output of the bidirectional flyback converter circuit; a primary-side switching element arranged in series with the primary winding; a secondary-side switching element arranged in series with the secondary winding; a charge capacitor which is connected via a first terminal to a common potential of the primary and secondary sides, and which is connected by a second terminal via a first diode to a common potential of the primary-side switching element and primary winding and is further connected via a second diode to a common potential of the secondary-side switching element and secondary winding; and a buck converter arranged on one of an the input side or the output side of the bidirectional flyback converter circuit, said a buck converter regulating a voltage present at a charge capacitor to a predeterminable value.
