An efficient active LC snubber for multi-output converters with flyback synchronous rectifier

Author

Jinno, Masahito ; Chen, Po-Yuan ; Lin, Kun-Chih

Author_Institution

Deparment of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan

Volume

2

fYear

2003

fDate

15-19 June 2003

Firstpage

622

Abstract

An efficient active LC snubber for multi-output converters with flyback synchronous rectifier (SR) is proposed in this paper. The proposed active LC snubber can be used to reset transformer and suppress switching surges. Besides, by storing surge energy in the proposed active LC snubber and then releasing it to the flyback SR, the converter can achieve high efficiency. For a forward converter with flyback SR, 90.8%, the maximum output efficiency, can be achieved. Experimental results also show that the output efficiency of this converter with the proposed active LC snubber is higher than that of active-clamped-based converters.

Keywords

energy storage; rectifying circuits; snubbers; surge protection; switching; 90.8 percent; active LC snubber; flyback synchronous rectifier; maximum output efficiency; multi-output converters; surge energy storage; switching surges suppression; transformer resetting; Circuits; Clamps; Inductance; Inductors; Rectifiers; Snubbers; Strontium; Surges; Switched-mode power supply; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1218127

Filename

1218127