Journal of the Japan Society of Powder and Powder Metallurgy
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
Soft Magnetic Materials
Experimental and Simulation Modeling Studies of Magnetic Properties of Ni-Zn Ferrite Cores under DC Bias
H. OshimaY. UeharaK. ShimizuK. InagakiA. FuruyaJ. FujisakiM. SuzukiK. KawanoT. MifuneT. MatsuoK. WatanabeH. Igarashi
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2014 Volume 61 Issue S1 Pages S238-S241


Ni-Zn ferrite cores under dc bias are experimentally characterized, and the results are compared with those of simulation. Hysteretic behavior of a toroidal core at high frequencies and the effect of dc bias are well reproduced by simulation with a hysteresis model that we have developed recently, a grain magnetics (GM) model. The inductance and core loss of a wirewound inductor under high-frequency excitation with dc bias are also measured. We show that the finite element analysis with the hysteresis model provides simulation results close to the experimental data of the inductor.

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© 2014 by Japan Society of Powder and Powder Metallurgy
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