Winding loss analysis and new air-gap arrangement for high-frequency inductors

Author

Chen, Wei ; He, Jiannong ; Luo, Hengh ; Hu, Yuequan ; Chau-Chun Wen

Author_Institution

Electr. Eng. Dept., Fuzhou Univ., China

Volume

4

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

2084

Abstract

Based on the winding loss analysis of inductors, a portion of fluxes called as "by-pass" fluxes are revealed, which induce extra winding losses in inductor windings. A new airgap arrangement scheme for inductors with simple lumped air-gaps is proposed, in which the air-gaps are staggered in their positions to reduce the fluxes going into the winding window, resulting in much less winding losses than those with usual E-E or E-I type core. Finite element analysis is performed to analyze and verify the winding loss reduction for the new airgap arrangement scheme

Keywords

air gaps; finite element analysis; losses; magnetic cores; magnetic flux; power inductors; windings; air-gap arrangement; airgap arrangement scheme; by-pass fluxes; finite element analysis; high-frequency inductors; inductor cores; inductor winding losses; simple lumped airgaps; winding loss analysis; winding loss reduction; Air gaps; Conducting materials; Core loss; Ferrites; Inductors; Magnetic analysis; Magnetic cores; Magnetic flux; Magnetic materials; Power electronics;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954428

Filename

954428