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Practical Evaluation of a Full-Bridge Phase-Shift-Modulated ZVS DC-DC Converter

Nithin George, Elizabeth Sebastian, Reenu George

The practical performance evaluation of a full-bridge phase-shift-modulated DC-DC converter is presented in this paper. The converter has the property of zero voltage switching (ZVS) using the transformer leakage inductance, without the need for any additional components. The implementation aspects of the converter are discussed, including the design of the high frequency transformer and LC filter, and configuration of the signal generation system and the driving circuits. The experimental results from a 450 W prototype are provided and these support the case for ZVS taking place in the converter. The effectiveness of the design is validated by the full load efficiency of 92% that was given by the prototype