JIEIE - Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.

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Title	Synchronous Control Method of Cascaded Buck-Boost Converter for Improving Efficiency
Authors	Kyung-Hun Kim ; Chang-Seok Park ; Tae-Uk Jung
DOI	http://dx.doi.org/10.5207/JIEIE.2017.31.11.037
Page	pp.37-44
ISSN	1225-1135
Keywords	Cascaded Buck-Boost Converter ; Conduction Loss ; Synchronous Control Method ; Forward Voltage Drop
Abstract	This paper proposes a synchronous control method for improving the efficiency of a Cascaded Buck-Boost converter for power supply of marine lantern. Conventional Cascaded Buck-Boost converter have a disadvantage in that the efficiency is reduced due to large conduction loss due to the forward voltage drop of the diode. In order to solve this problem, a synchronous control method was applied to improve the total system efficiency of the converter by replacing the diode of Cascaded Buck-Boost converter with a MOSFET. The validity of the proposed synchronous Cascaded Buck-Boost converter was verified through the analysis of loss and experiment.

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