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Energies 2018, 11(10), 2618;

A Bilateral Zero-Voltage Switching Bidirectional DC-DC Converter with Low Switching Noise

Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
Author to whom correspondence should be addressed.
Received: 22 August 2018 / Revised: 19 September 2018 / Accepted: 26 September 2018 / Published: 1 October 2018
(This article belongs to the Special Issue Power Electronics for Energy Storage)
Full-Text   |   PDF [10862 KB, uploaded 1 October 2018]   |  


This paper proposes a novel bilateral zero-voltage switching (ZVS) bidirectional converter with synchronous rectification. By controlling the direction and timing of excessive current injection, the main power switches can achieve bilateral ZVS under various loads and output voltages. Compared with the common soft-switching power converter with only zero-voltage turn-on, the proposed bilateral ZVS bidirectional converter can achieve both zero-voltage switching on and off in every switching cycle. This feature can alleviate the output switching noise due to the controlled rising and falling slope of the switch voltage. Furthermore, the voltage slopes almost remain unchanged over a wide range of output voltages and load levels. The most important feature of bilateral ZVS is to reduce the output switching noise. Experimental results based on a 1 kW prototype are presented to demonstrate the performance of the proposed converter. From experimental results on the proposed scheme, the switching noise reduction is about 75%. View Full-Text
Keywords: switching noise; zero-voltage switching; bidirectional converter switching noise; zero-voltage switching; bidirectional converter

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Huang, C.-C.; Tsai, T.-L.; Hsieh, Y.-C.; Chiu, H.-J. A Bilateral Zero-Voltage Switching Bidirectional DC-DC Converter with Low Switching Noise. Energies 2018, 11, 2618.

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