Dynamic circuit modeling of a high frequency transformer

Author

Lu, H.Y. ; Zhu, J.G. ; Hui, S.Y.R. ; Ramsden, V.S.

Author_Institution

Fac. of Eng., Univ. of Technol., Sydney, NSW, Australia

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1479

Abstract

This paper presents a generalized dynamic circuit model of high frequency transformers, which includes all types of core losses and thermal effects on magnetic hysteresis. This transformer model provides accurate core loss prediction and is suitable for the simulation of transformers used in high frequency switching-mode power converters. Simulation results of a 500 W/25 kHz transformer supplied by a full-bridge inverter are confirmed with measurements

Keywords

DC-AC power convertors; bridge circuits; high-frequency transformers; invertors; losses; magnetic hysteresis; power transformers; switched mode power supplies; transformer cores; 25 kHz; 500 W; core losses; full-bridge inverter; generalized dynamic circuit model; high-frequency transformer; loss prediction; magnetic hysteresis; simulation; switching-mode power converters; thermal effects; Circuit faults; Core loss; Ferrites; Frequency; Magnetic circuits; Magnetic cores; Magnetic hysteresis; Magnetic materials; Power electronics; Predictive models;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703257

Filename

703257