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A new simple and low cost method for paralleling multiple power stages in high-power high-gain isolated full-bridge boost converters is presented. A small current balancing transformer and serial connection of transformer secondary windings provides ideal current sharing between paralleled power stages. Effective and safe parallel operation of multiple switching stages can thus be performed. By splitting...
The winding AC loss behaviors of push-pull transformer with four windings and two central taps are much different from that of general two winding transformer because the windings conduct currents in different time intervals. The model was introduced by the winding current FFT decomposition and magnetic motive force (MMF) analysis and discloses that the odd harmonic MMF is balanced among the all windings...
This paper proposes a new recovery circuit for the capacitive load. Connecting the one side of windings to the load together, the resonant current is shared in both windings, hence the conduction loss is reduced. Simple circuit structure with transformer achieves the reduced the number of devices. Furthermore, the current-balance transformer enables ZVS operation of the switching device. To confirm...
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