Effect of Valley Switching and Switching-Frequency Limitation on Line-Current Distortions of DCM/CCM Boundary Boost PFC Converters

Author

Huber, Laszlo ; Irving, Brian T. ; Jovanovic, Milan

Author_Institution

Power Electron. Lab., Delta Products Corp., Research Triangle Park, NC

Volume

24

Issue

2

fYear

2009

Firstpage

339

Lastpage

347

Abstract

A systematic analysis of line-current distortions of the discontinuous-conduction-mode and the continuous-conduction-mode boundary boost power factor correction converter due to valley switching (VS) and switching-frequency limitation, where VS is either maintained or lost after the onset of switching-frequency limitation, is provided. Closed-form expressions for the line current are derived. It is shown that if the switching frequency is limited and VS is not maintained, the line current is more distorted with voltage-mode control than with current-mode control. The effects of line-current distortions are demonstrated with both simulation and experimental results.

Keywords

power convertors; power factor correction; switching convertors; boost PFC converters; continuous-conduction-mode boundary boost power factor correction converter; discontinuous-conduction-mode converter; line current distortion; switching-frequency limitation; valley switching; Boost converter; discontinuous conduction mode (DCM)/continuous conduction mode (CCM) boundary; line-current distortion; power factor correction (PFC); single-phase rectifier; switching-frequency limitation; valley switching (VS);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2008.2006053

Filename

4729640