Abstract |
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A soft-switching circuit topology derived from the semi dual-Dynamic-bridge converter(S-DDB) get wide attention for applications
requiring unidirectional power flow such as the dc-dc stage of a
photovoltaic power converters, and battery charger for electrical
vehicles. The topology named as the semi dual Dynamic bridge (S-DDB) is obtained by replacing the fully Dynamic (four switches) bridge
on the load side of a DAB by a semi Dynamic (two switches and diodes)
bridge. In addition to the reduced number of Dynamic switches, the
topology offers several other advantages including extended zero-voltage switching (ZVS), and smaller output filter requirement. The
principle of operation, waveforms in various intervals and power
transfer expression are different from the basic DAB topology which
presented in detail. In this project Dual source semi dual Dynamic
bridge converter is proposed and it exhibits efficient dc power
distribution and higher degree of reliability compared to the single
source semi dual Dynamic bridge converter. The performances of S-DAB are validated through extensive simulation and its results are
verified using MATLAB software |