High performance boost PFC pre-regulator with improved zero-voltage-transition (ZVT) converter

Author

Il-Oun Lee ; Lee, D.Y. ; Cho, B.H.

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

3

fYear

2002

fDate

2002

Firstpage

1387

Abstract

In this paper, an improved ZVT PWM boost converter using a coupled inductor is proposed to minimize the switching loss of the auxiliary switch. To reduce the turn-off switching loss of the auxiliary switch and the EMI noise, the low-voltage zener diode is used in the auxiliary switching network. Soft-switching for the auxiliary switch is guaranteed at wide line and load ranges using this technique. The operation principles of the proposed converter are explained and analyzed. Based on the analysis, design guidelines are given. The prototype of 1 kW, 100 kHz system is implemented for experimental verification.

Keywords

DC-DC power convertors; PWM power convertors; inductors; power factor correction; switching circuits; 1 kW; 100 kHz; EMI noise; ZVT PWM boost converter; auxiliary switching network; coupled inductor; low-voltage zener diode; switching loss minimisation; turn-off switching loss reduction; zero-voltage-transition converter; Diodes; Electromagnetic interference; Guidelines; Inductors; Noise reduction; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual

Print_ISBN

0-7803-7262-X

Type

conf

DOI

10.1109/PSEC.2002.1022370

Filename

1022370