KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	The Efficiency Characteristics of LLC Half-Bridge Resonant Converter
Authors	김성완(Kim, Sung-Wan) ; 김창선(Kim, Chang-Sun)
DOI	https://doi.org/10.5370/KIEE.2011.60.7.1366
Page	pp.1366-1371
ISSN	1975-8359
Keywords	LLC half bridge resonant converter ; ZVS ; Highest efficiency
Abstract	The resonant converter cause the high voltage stress according to the input voltage, which increases the conduction loss in converter power switches. The topology of LLC half bridge resonant converter provides ZVS characteristic and also the stress of voltage and current is smaller than that of the general resonant converters. So we can expect the higher efficiency. In this paper, the analysis of the characteristics of the converter efficiency and the best conditions for highest efficiency were investigated. As a result, the efficiency of utilizing up to 93% is achieved.

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