Development of Common Mode Choke Coil Made of New Nanocrystalline Soft Magnetic Alloy "NANOPERM^[○!R]"

• Yutaka NAITOH

• Teruo BITOH

• Takashi HATANAI

• Akihiro MAKINO

• Akihisa INOUE

• Tsuyoshi MASUMOTO

Abstract

We have developed the common mode choke coils made of a kind of new nanocrystalline soft magnetic Fe-M-B (M=Zr, Nb, Hf) based alloys, "NANOPERM^[○!R], " with high saturation magnetic flux density above 1.5 T as well as excellent soft magnetic properties. The very low remanence ratio, which is necessary to obtain good pulse voltage attenuation characteristics of the common mode choke coils, has been obtained by annealing treatment in a static transverse magnetic field. Insertion loss and the pulse voltage attenuation characteristics of the NANOPERM^[○!R] common mode choke coil have been found to be superior to those of the choke coil made of MnZn-ferrite. Furthermore, the NANOPERM^[○!R] common mode choke coil exhibits stable inductance characteristics against temperature change. It can be concluded that NANOPERM^[○!R] is suitable for a core material of the common mode choke coils.

Journal

• Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy

  Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 43 (2), 161-165, 1997-03-25

  Tohoku University

Keywords

• nanocrystalline soft magnetic alloy
• common mode choke coils
• insertion loss
• pulse voltage attenuation
• magnetic field induced anisotropy

Details

• CRID: 1572824501815071104
• NII Article ID: 110004640665
• NII Book ID: AA00836167
• ISSN: 00408808
• Web Site: http://hdl.handle.net/10097/28668
• Text Lang: en
• Data Source:
  • CiNii Articles