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http://dx.doi.org/10.6109/jkiice.2008.12.11.2015

Multi-level Converter for Low EMI and High Quality Output Voltage  

Lee, Sang-Hun (삼성전기 Power Power 사업팀)
Lee, Min-Jung (전남대학교 전기공학과)
Park, Sung-Jun (전남대학교 전기공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.11, 2008 , pp. 2015-2021 More about this Journal
Abstract
Recently, with the growth of photovoltaic system, many researchers and companies have concerned about the multi-level inverter which has an efficiency of boosting voltage. In this paper a novel structure of multi-level converter for reducing ripple of output voltage is proposed. In the proposed converter Buck converters are connected in series to generate the output voltage and the ripple of output voltage can be reduced compared with the exiting Buck converter. Especially when outputting lower output voltage the number of acting switching elements is less and the result of ripple reducing is more obvious. This paper implements a multi-level switching function based on the FPGA.
Keywords
DC/DC converter; multi-leve; FPGA; microprocessor;
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