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Influence of dimension ratio and magnetizing conditions on the ac magnetic properties of tape‐wound ring core
Author(s) -
Saitoh Koichi,
Shinya Kunihiro,
Miyazawa Eijiro
Publication year - 1999
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(19991130)129:3<1::aid-eej1>3.0.co;2-3
Subject(s) - eddy current , magnetization , materials science , waveform , magnetic flux , dimension (graph theory) , magnetic core , fourier series , core (optical fiber) , mechanics , voltage , alternating current , flux (metallurgy) , magnetic circuit , excitation , nuclear magnetic resonance , condensed matter physics , electrical engineering , magnet , magnetic field , physics , composite material , mathematical analysis , mathematics , engineering , electromagnetic coil , quantum mechanics , pure mathematics , metallurgy
In the design of electrical devices, it is important to know the relation of the magnetic properties between the raw materials and the core. This paper describes the magnetic properties of a tape‐wound ring core considering the influence of magnetization conditions and dimension ratio under ac excitation. In the analysis, the magnetization characteristics are approximated by a Fourier series, and it is assumed that the eddy current factor is proportional to the rate of change of the flux. From the result of numerical analysis, the influences of operating flux density, frequency, waveforms of input voltage on the relation between dimension ratio and ac magnetic properties are shown. The results of the analysis were confirmed by experiments. © 1999 Scripta Technica, Electr Eng Jpn, 129(3): 1–8, 1999