论文信息 - Dynamic circuit modeling of a high frequency transformer

Dynamic circuit modeling of a high frequency transformer

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.

V. S. Ramsden | Jianguo Zhu | Haiyan Lu | Shu Yuen Ron Hui

[1] V. S. Ramsden,et al. A generalized dynamic circuit model of magnetic cores for low- and high-frequency applications. I. Theoretical calculation of the equivalent core loss resistance , 1996 .

[2] C. Christopoulos,et al. Discrete transform technique for solving nonlinear circuits and equations , 1992 .

[3] Jianguo Zhu,et al. Numerical modelling and simulation of hysteresis effects in magnetic cores using transmission-line modelling and the Preisach theory , 1995 .

[4] E. Snelling. Soft ferrites: properties and applications , 1969 .

[5] V. S. Ramsden,et al. A generalized dynamic circuit model of magnetic cores for low- and high-frequency applications. II. Circuit model formulation and implementation , 1996 .

[6] Mayergoyz,et al. Mathematical models of hysteresis. , 1986, Physical review letters.