DC Bias Effect on the Magnetic Properties in NiZn Ferrite

• Suzuki M.

  Materials Research & Development Department 3, Taiyo Yuden Co., Ltd.

• Kawano K.

  Materials Research & Development Department 3, Taiyo Yuden Co., Ltd.

• Matsuo T.

  Department of Electrical Engineering, Graduate School of Engineering, Kyoto University

• Mifune T.

  Department of Electrical Engineering, Graduate School of Engineering, Kyoto University

• Uehara Y.

  Fujitsu Ltd.

• Furuya A.

  Fujitsu Ltd.

• Igarashi H.

  Graduate School of Information Science and Technology, Hokkaido University

• Watanabe K.

  Department of Information and Electronic Engineering, Muroran Institute of Technology

抄録

Magnetic properties of mono-domain and multi-domain NiZn ferrites under dc magnetic flux densities were investigated with regard to actual performance in power circuits. Bias properties were measured along the initial magnetization curve. The magnetizing process in the multi-domain sample is mainly dominated by domain-wall motion even in the low ac magnetic flux density region. In contrast, in the mono-domain sample, magnetization is reversible and core loss is low regardless of the dc magnetic flux density because the spin rotation dominates if ac flux density is below 20 mT.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 61 (S1), S245-S247, 2014

  一般社団法人 粉体粉末冶金協会

キーワード

• NiZn ferrite
• core loss
• domain structure
• spin rotation
• domain wall motion

詳細情報

• CRID: 1390282681287592448
• NII論文ID: 130004482682
• DOI: 10.2497/jjspm.61.s245
• ISSN: 18809014
• ISSN: 05328799
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可