A New High Efficiency ZVZCS Bidirectional DC/DC Converter for HEV 42V Power Systems

Chong-Eun Kim; Sang-Kyoo Han; Ki-Bum Park; Gun-Woo Moon

A New High Efficiency ZVZCS Bidirectional DC/DC Converter for HEV 42V Power Systems

Vol. 6, No. 3, pp. 271-278, Jul. 2006

10.6113/JPE.2006.6.3.271

bidirectional DC/DC converter

Zero-voltage switching (ZVS)

Zero-current switching (ZCS)

hybrid electric vehicle (HEV)

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Abstract

A new high efficiency zero-voltage and zero-current switching (ZVZCS) bidirectional DC/DC converter is proposed in this paper. The proposed converter consists of two symmetric half-bridge cells as the input and output stages. MOSFETs of input stage are turned-on in ZVS condition, and those of output stage are turned-off in ZCS condition. In addition, MOSFETs of input and output stages have low voltage stresses clamped to input and output voltage, respectively. Therefore, the proposed converter has high efficiency and high power density. The operational principles are analyzed and the advantages of the proposed converter are described. The 300W prototype of the proposed converter is implemented for 42V hybrid electric vehicle (HEV) application in order to verify the operational principles and advantages.

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Cite this article

[IEEE Style]

C. Kim, S. Han, K. Park, G. Moon, "A New High Efficiency ZVZCS Bidirectional DC/DC Converter for HEV 42V Power Systems," Journal of Power Electronics, vol. 6, no. 3, pp. 271-278, 2006. DOI: 10.6113/JPE.2006.6.3.271.

[ACM Style]

Chong-Eun Kim, Sang-Kyoo Han, Ki-Bum Park, and Gun-Woo Moon. 2006. A New High Efficiency ZVZCS Bidirectional DC/DC Converter for HEV 42V Power Systems. Journal of Power Electronics, 6, 3, (2006), 271-278. DOI: 10.6113/JPE.2006.6.3.271.