Modeling and Design Considerations for ZVS Asymmetrical Half-Bridge Converter

Author

Hsieh, Guan-Chyun ; Kuo, Chi-Yeh

Author_Institution

Nat. Taiwan Univ. of Sci. & Technol., Taipei

fYear

2005

fDate

21-24 Nov. 2005

Firstpage

1

Lastpage

6

Abstract

Practical point of view in modeling and design considerations for a zero-voltage-switched (ZVS) asymmetrical half-bridge (ASY-HB) converter is proposed. Six dynamic conversion states for describing the converter characteristics are explored and modeled, including two power-delivery states, two resonant states, and two energy-transition states etc. Design considerations are examined thoroughly. A design of 300 W ZVS ASY-HB converter is examined and a high efficiency up to 92% at full load is achieved. All performances verified by experiment are quite well and close to the theoretical predictions.

Keywords

resonant power convertors; switching convertors; zero voltage switching; ZVS; asymmetrical half-bridge converter; dynamic conversion states; energy-transition states; power 300 W; power-delivery states; resonant states; zero voltage switching; Capacitors; Coupling circuits; Diodes; Filters; Inductance; Inductors; Magnetic analysis; Magnetic resonance; Magnetic separation; Zero voltage switching; asymmetrical half-bridge converter; resonance; zero-voltage-switched;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2005 2005 IEEE Region 10

Conference_Location

Melbourne, Qld.

Print_ISBN

0-7803-9311-2

Electronic_ISBN

0-7803-9312-0

Type

conf

DOI

10.1109/TENCON.2005.301327

Filename

4085127