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This paper proposes a method to improve the power efficiency in the half-bridge LLC resonant DC-DC converter. The optimum design of a transformer is discussed to improve power efficiency. The interlinkage magnetic flux in the primary and secondary wires causes eddy currents, which results in a power loss. This study demonstrates that power loss can be reduced through optimum design of the strand diameter...
This paper deals with the power efficiency improvement of the composite resonant DC-DC converter, which is developed to be applied to the power conditioner of the photovoltaic generation system. To improve the power efficiency, following three approaches are taken: 1) optimum design of the transformer 2) use of the voltage doubler rectifier. 3) reduction of the winding loss of the transformer. The...
This paper deals with a power efficiency improvement of the full bridge current resonant DC-DC converter, which is developed to be applied to the power conditioner of the fuel cell generation system. The loss by the backward current of the side rectification diode can be decreased with a voltage doubler rectifier. The center tap rectifier is used for the conventional full bridge current resonant converter...
This paper deals with a comparative analysis of full bridge and half bridge current resonant DC-DC converter. The novel current resonant DC-DC converter has been proposed to improve the power efficiency. The full bridge DC-DC converter is suitable for the low input voltage and large input current as in the fuel cell power supply system, and the half bridge one is suitable to the solar cell power supply...
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