Abstract: This paper deals with the implementation of a converter, which allows transfer of power flow between the two dc sources in either direction. This converter can reverse the direction of flow of current, and thereby power, while maintaining the voltage polarity unchanged. The converter is the combination of two successful topologies, namely half bridge topology and current fed push pull topology. Both topologies are connected with high frequency isolation transformer. The primary side has the dc mains and the load, and the secondary side contains the battery to be charged and discharged. When dc main is present the converter operates in buck mode to charge the battery. On the failure of the dc main the converter operates in boost mode, where the battery regulates the bus voltage and provides power to the load. This bidirectional power flow is achieved by using same power components hence minimizing the hardware.
Keywords: Bidirectional dc-dc converter, boost mode, charging and discharging, current-fed push-pull topology.
Title: A Dual Mode Converter Topology for Low Power Applications
Author: K.V.BINDU, B.NAGARANI
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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