A front-end converter with high reliability and high efficiency

Author

Mino, Katsyuki ; Matsumoto, Hiroyuki ; Nemoto, Yuji ; Fujita, Satoru ; Kawasaki, Daisuke ; Yamada, Ryuji ; Tawada, Nobuyuki

Author_Institution

Fuji Electr. Holdings Co., Ltd., Hino, Japan

fYear

2010

fDate

12-16 Sept. 2010

Firstpage

3216

Lastpage

3223

Abstract

This paper presents a front-end converter including a novel bridgeless PFC converter with high reliability and an isolated full-bridge DC-DC converter with a proposed control scheme to improve efficiency under a light load condition. The proposed bridgeless PFC converter can avoid flowing a high inrush current to silicon carbide Schottky diodes and MOSFETs without impairing efficiency. Furthermore, efficiency of full bridge DC-DC converters under a light load condition can be improved by adjusting to proper switching frequency. In this paper, the proposed topologies and the principles of operation are introduced. Furthermore, a 2 kW prototype was built in order to evaluate the proposed topologies. The experimental results are shown in this paper.

Keywords

DC-DC power convertors; Schottky diodes; circuit reliability; power MOSFET; power factor correction; silicon compounds; wide band gap semiconductors; MOSFET; SiC; bridgeless PFC converter; front-end converter; isolated full-bridge DC-DC converter; power 2 kW; silicon carbide Schottky diodes; switching frequency; Bridge circuits; Converters; MOSFETs; Power generation; Schottky diodes; Surges; Voltage control; PWM; bridgeless PFC; efficiency; full bridge DC-DC converter; inrush current; light load; phase shift; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2010 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

978-1-4244-5286-6

Electronic_ISBN

978-1-4244-5287-3

Type

conf

DOI

10.1109/ECCE.2010.5618160

Filename

5618160