Estimation of eddy-current loss for MnZn ferrite cores

Hsiau Hsian Nien, Chuan Kuei Huang, Ming Yu Wang, Chih Wei Lin, Shih Kuen Changchien

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

This paper proposes a new estimation for the eddy-current loss of MnZn ferrite cores. The eddy-current loss plays a critical role in the frequency range of 100-500 kHz, whereas the amount of the hysteresis loss dominates the core loss of magnetic devices below 100 kHz. However, the definition and calculation of eddy-current loss are not as easy or accurate. In the proposed estimation, the equivalent electrical circuit method is conducted for determining the grain conductivity and the driving current to replace the induced magnetic flux density in order to simplify measurement. The related electrical and magnetic characteristics are measured by an HP-4294 impedance analyzer. Finally, an EI30 (PC40 material system from TDK) MnZn ferrite core is used as an example to prove that this model can effectively estimate the eddy-current loss of MnZn ferrite cores at different frequencies and driving currents.

原文English
主出版物標題Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011
頁面204-209
頁數6
DOIs
出版狀態Published - 2012
事件2011 International Conference on Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011 - Beijing, China
持續時間: 2011 十二月 242011 十二月 25

出版系列

名字Advanced Materials Research
382
ISSN(列印)1022-6680

Other

Other2011 International Conference on Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011
國家China
城市Beijing
期間11-12-2411-12-25

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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