Estimation of eddy-current loss for MnZn ferrite cores

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationAdvanced Research on Advanced Structure, Materials and Engineering, ASME 2011
Pages204-209
Number of pages6
DOIs
Publication statusPublished - 2012 Jan 1
Event2011 International Conference on Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011 - Beijing, China
Duration: 2011 Dec 242011 Dec 25

Publication series

NameAdvanced Materials Research
Volume382
ISSN (Print)1022-6680

Other

Other2011 International Conference on Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011
CountryChina
CityBeijing
Period11-12-2411-12-25

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Nien, H. H., Huang, C-K., Wang, M. Y., Lin, C. W., & Changchien, S. K. (2012). Estimation of eddy-current loss for MnZn ferrite cores. In Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011 (pp. 204-209). (Advanced Materials Research; Vol. 382). https://doi.org/10.4028/www.scientific.net/AMR.382.204