Interleaved soft-switching multilevel boost converter

Author

Matsumura, Kohei ; Koizumi, Hirotaka

Author_Institution

Dept. of Electr. Eng., Tokyo Univ. of Sci., Tokyo, Japan

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

936

Lastpage

941

Abstract

Multilevel DC-DC boost converter which consists of an inductor based boost circuit and a switched capacitor circuit has high voltage gain and flexible output voltage. It is suitable for a low voltage power source such as fuel cells. However, in high switching frequency, multilevel DC-DC boost converter´s power conversion efficiency is reduced by switching loss. Against the problem, this paper proposes an interleaved soft-switching multilevel DC-DC converter. The efficiency of the proposed converter is improved compared with the conventional soft switching converter in high boost ratio. The operation of the proposed converter has been confirmed by circuit experiments and simulations.

Keywords

DC-DC power convertors; inductors; switched capacitor networks; zero current switching; zero voltage switching; DC-DC boost converter; high switching frequency; inductor based boost circuit; interleaved soft switching converter; low voltage power source; multilevel boost converter; power conversion efficiency; switched capacitor circuit; switching loss; Capacitance; Capacitors; Choppers (circuits); Inductors; Switches; Switching loss; High Boost Ratio; Interleaved Converter; Multilevel Converter; Soft-Switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699259

Filename

6699259