Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703257
