A novel two-switch forward configuration for wide input-voltage range applications: RCD-clamped forward converter with ripple reduction (RCDFRR)

Author

Leu, Ching-Shan ; Chen, Wei-Lun

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei

fYear

2008

fDate

15-19 June 2008

Firstpage

2278

Lastpage

2283

Abstract

Employing a voltage-clamped network and one additional switch to the forward converter with ripple reduction (FRR), a two-switch RCD-clamped FRR (RCDFRR) is proposed. In addition to inheriting the advantages of the FRR, it can surpass the maximum 50% duty cycle limitation with simple implementation. Consequently, the proposed converter is suitable for wide input-voltage range applications. In this paper, the circuit operation is analyzed and the experimental circuit of a 180 kHz, 36-75 V input voltage and 5V/30A output power is described.

Keywords

power convertors; switches; RCD-clamped forward converter; current 30 A; frequency 180 kHz; maximum duty cycle limitation; ripple reduction; two-switch forward configuration; voltage 36 V to 75 V; voltage 5 V; Circuit analysis; Circuit topology; Electromagnetic interference; Laboratories; Power conversion; Power generation; Pulse width modulation; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592280

Filename

4592280