Power loss model for efficiency improvement of boost converter

Author

Ivanovic, Zeljko ; Blanusa, Branko ; Knezic, Mladen

Author_Institution

Fac. of Electr. Eng., Univ. of Banja Luka, Banja Luka, Bosnia-Herzegovina

fYear

2011

fDate

27-29 Oct. 2011

Firstpage

1

Lastpage

6

Abstract

The analytical expressions for boost converter loss are presented in this paper. All significant sources of conduction and dynamic losses within the converter elements, including losses in choke magnetic material and switching losses which occur due to diode recovery time, are discussed. Sources of losses in continuous and discontinuous current mode of converter are examined. The equivalent input resistance of the generator is included in converter loss model. In the paper, the case when single-phase rectifier is input circuit of the converter is presented. Loss model of converter and its efficiency was compared with experimental measurements on a prototype of the boost converter.

Keywords

DC-DC power convertors; diodes; losses; rectifying circuits; DC-DC converter; boost converter loss model; choke magnetic material; conduction losses; continuous current mode; diode recovery time; discontinuous current mode; dynamic losses; power loss model; single-phase rectifier; switching losses; Capacitors; Equations; Inductors; Mathematical model; Rectifiers; Resistance; Switching frequency; boost converter; efficiency improvment; power loss model;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communication and Automation Technologies (ICAT), 2011 XXIII International Symposium on

Conference_Location

Sarajevo

Print_ISBN

978-1-4577-0744-5

Type

conf

DOI

10.1109/ICAT.2011.6102129

Filename

6102129