Design on topologies for high efficiency two-stage AC-DC converter

Author

Park, Jeong-Eon ; Kim, Jong-Woo ; Lee, Byoung-Hee ; Moon, Gun-Woo

Author_Institution

Dept. of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, KOREA

Volume

1

fYear

2012

fDate

2-5 June 2012

Firstpage

257

Lastpage

262

Abstract

Design on topologies for high efficiency 60W level two-stage AC-DC adapter is proposed in this paper. Conventional 60W level single-stage AC-DC converter has wide input range. And flyback topology has low efficiency characteristic. Therefore, conventional 60W single-stage AC-DC adapter has low efficiency characteristic. In order to develop small and high efficiency AC-DC converter, propose two-stage AC-DC converter structure. Two-stage AC-DC converter is added PFC stage. But DC-DC stage easy to design Because input voltage fixed link capacitor voltage. Moreover, size of input-filter decrease due to PFC stage effect. Therefore, two-stage AC-DC converter has high efficiency. And it is possible to put in conventional single-stage AC-DC adapter case. Design procedures and experimental results for boost PFC, flyback, forward and LLC DC-DC converters are presented to select the suitable topologies of two-stage AC-DC converter.

Keywords

AC-DC power converters; Clamps; Inductance; Inductors; Topology; Transformer cores; AC-DC Adapter; Two-Stage AC-DC Converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin, China

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6258845

Filename

6258845