Journal article Open Access

Development of Soft-Switching PWM Full Bridge DC–DC Converter with Charging Applications

Meenavalli Harikrishna; Madugula Satya Harish; M.Veera ChandraKumar

Blue Eyes Intelligence Engineering and Sciences Publication(BEIESP)

This paper proposes a high-frequency-link soft is witching pulse-width dc–dc converter for battery chargers. Zero-voltage switching of power switches is achieved from light load to full load. Reverse recovery losses can be reduced in the secondary side output diodes without using any additional circuit components. Zero-current switching of output diodes is achieved by using the series-resonant circuit in the secondary side .The circulating current in the primary side full-bridge circuit can be changed by the operation modes of the output diode current. As a result, a high efficiency can be achieved for EV on-board battery chargers. The performance of the proposed converter is evaluated throughout Matlab Simulation results for a 2.0- kW circuit

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