Zero-voltage switching multi-output forward converter

Author

Kim, Jae-Kuk ; Choi, Seong-Wook ; Moon, Gun-Woo

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

fYear

2009

fDate

18-22 Oct. 2009

Firstpage

1

Lastpage

6

Abstract

A new multi-output forward (MOFC) converter is proposed. It consists of four synchronous switches in secondary side for two outputs. The primary switches control the main output voltage and the synchronous switch in transformer secondary side controls the auxiliary output voltage. The main advantages of the proposed converter are that the secondary switch can achieve the zero voltage switching (ZVS) at entire load conditions and the secondary rectified voltage is a three level waveform, which can reduce the output filter. The operational principle, analysis and design considerations of the proposed converter are presented in this paper. The validity of this study is confirmed by the experimental results from dual outputs (12V-18.3A and 5V-6A) prototype for PC power supply.

Keywords

power convertors; power filters; power transformers; zero voltage switching; PC power supply; auxiliary output voltage; multioutput forward converter; power filter; primary switches control; synchronous switches; three level waveform; transformer secondary side; zero voltage switching; Circuits; Energy consumption; Power supplies; Regulators; Semiconductor diodes; Switches; Switching converters; Switching loss; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International

Conference_Location

Incheon

Print_ISBN

978-1-4244-2490-0

Electronic_ISBN

978-1-4244-2491-7

Type

conf

DOI

10.1109/INTLEC.2009.5351805

Filename

5351805