Half-Bridge Zero Voltage Switching Converter with Three Resonant Tanks

Bor-Ren Lin; Wei-Jie Lin

Half-Bridge Zero Voltage Switching Converter with Three Resonant Tanks

Bor-Ren Lin

Wei-Jie Lin

Vol. 14, No. 5, pp. 882-889, Sep. 2014

10.6113/JPE.2014.14.5.882

DC/DC converter

PWM

Resonant converter

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Abstract

This paper presents a zero voltage switching (ZVS) converter with three resonant tanks. The main advantages of the proposedconverter are its ability to reduce the switching losses on the power semiconductors, decrease the current stress of the passivecomponents at the primary side, and reduce the transformer secondary windings. Three resonant converters with the same powerswitches are adopted at the low voltage side to reduce the current rating on the transformer windings. Using a series-connectionof the transformer secondary windings, the primary side currents of the three resonant circuits are balanced to share the loadpower. As a result, the size of both the transformer core and the bobbin are reduced. Based on the circuit characteristics of theresonant converter, the power switches are turned on at ZVS. The rectifier diodes can be turned off at zero current switching(ZCS) if the switching frequency is less than the series resonant frequency. Therefore, the reverse recovery losses on the rectifierdiodes are overcome. Experiments with a 1.6kW prototype are presented to verify the effectiveness of the proposed converter.

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Cite this article

[IEEE Style]

B. Lin and W. Lin, "Half-Bridge Zero Voltage Switching Converter with Three Resonant Tanks," Journal of Power Electronics, vol. 14, no. 5, pp. 882-889, 2014. DOI: 10.6113/JPE.2014.14.5.882.

[ACM Style]

Bor-Ren Lin and Wei-Jie Lin. 2014. Half-Bridge Zero Voltage Switching Converter with Three Resonant Tanks. Journal of Power Electronics, 14, 5, (2014), 882-889. DOI: 10.6113/JPE.2014.14.5.882.