Operation analysis for Buck PFC converter in discontinuous capacitor voltage mode

Author

Jianbo Yang ; Faris, Al-Naemi ; Weiping Zhang

Author_Institution

Mater. & Eng. Res. Inst., Sheffield Hallam Univ., Sheffield, UK

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

1467

Lastpage

1472

Abstract

A LC filter can be added to the input of the conventional buck converter to make the converter operate in discontinuous capacitor voltage mode. In this mode, the converter obtains the inherent power factor correction. Besides, both the input and output current will be continuous. This makes it possible for the converter operating at a high power level range. The input current will follow the input voltage automatically by a simple constant duty cycle control. This paper presents a detailed operation analysis of the converter operating in discontinuous capacitor voltage mode. And a 36V/100W prototype was built to verify the theoretical results.

Keywords

LC circuits; filters; power convertors; power factor correction; LC filter; buck PFC converter; discontinuous capacitor voltage mode; duty cycle control; operation analysis; power 100 W; power factor correction; voltage 36 V; Capacitors; Inductors; Power factor correction; Power harmonic filters; Reactive power; Switches; Voltage control; continuous inductor current component; discontinuous capacitor voltage mode; power factor correction;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7038081

Filename

7038081