TY - GEN
T1 - Experimental Evaluation of the Relationship between Filter Inductor Impedances and Dimensional Resonances of MnZn Ferrites
AU - Takahashi, Shotaro
AU - Ogasawara, Satoshi
AU - Takemoto, Masatsugu
AU - Orikawa, Koji
AU - Tamate, Michio
N1 - Funding Information:
This research was supported by Fuji Electric Co., Ltd.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - This paper explores the relationship between filter inductor impedance and dimensional resonance in magnetic cores. Experimental results were obtained showing multiple factors behind the resonances that appear in the frequency characteristics of inductor impedances: the inherent characteristics of a magnetic material, the self-inductance of an inductor and stray capacitance in its winding, and the winding acting as a distributed constant line. Next, based on the measurement results, the dimensional dependencies of the complex permeabilities (dimensional resonance) and the influence of dimensional resonance on inductor impedance are discussed in detail. Finally, this paper shows that the effect of dimensional resonance on complex permeability can be mitigated and filter inductor impedance can be increased in the high frequency range by a core lamination. These results are verified by the experiments described in this paper.
AB - This paper explores the relationship between filter inductor impedance and dimensional resonance in magnetic cores. Experimental results were obtained showing multiple factors behind the resonances that appear in the frequency characteristics of inductor impedances: the inherent characteristics of a magnetic material, the self-inductance of an inductor and stray capacitance in its winding, and the winding acting as a distributed constant line. Next, based on the measurement results, the dimensional dependencies of the complex permeabilities (dimensional resonance) and the influence of dimensional resonance on inductor impedance are discussed in detail. Finally, this paper shows that the effect of dimensional resonance on complex permeability can be mitigated and filter inductor impedance can be increased in the high frequency range by a core lamination. These results are verified by the experiments described in this paper.
KW - Complex permeability
KW - Dimensional resonance
KW - EMI
KW - Filter inductor
KW - MnZn ferrite
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U2 - 10.1109/IFEEC47410.2019.9015169
DO - 10.1109/IFEEC47410.2019.9015169
M3 - Conference contribution
AN - SCOPUS:85082385160
T3 - 2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019
BT - 2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE International Future Energy Electronics Conference, IFEEC 2019
Y2 - 25 November 2019 through 28 November 2019
ER -
