Application of Amorphous Flake to Electromagnetic Interference (EMI) Noise Filter

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概要

• 論文の詳細を見る

• This paper describes the application of a Co-based amorphous alloy flake to a common-mode noise filter. Saturation magnetization and relative permeability are measured to be 7000 G and 1150, respectively. The amorphous flake exhibits high loss characteristics; the resistance of a 0.0065 cm^3 amorphous flake increases from 0.14 Ω at 1 MHz to 2.2 Ω at 1 GHz as the frequency is increased. It is confirmed that a filter of 1/7 the volume of a conventional filter (ferrite core) exhibits the same noise attenuation in the 10 MHz〜1 GHz frequency range.

• 社団法人応用物理学会の論文
• 1995-03-15

著者

• TAKEI Koji

  NTT Interdisciplinary Research Laboratories

• Takei K

  Ntt Interdisciplinary Research Laboratories

• Mori Toshinori

  Ntt Network Service Systems Laboratories

• ISHII Osamu

  NTT Interdisciplinary Research Laboratories

• SENDA Masakatsu

  NTT Interdisciplinary Research Laboratories

関連論文

• Bias Effect on Compositional Separation in Sputtered Co-Cr Films
• Micromagnetic Domain Observations of Co-Cr-Ta Films Using Neutron Scattering
• Selective Dry Etching to Reveal Compositional Imhomogeneity in Co-Cr Magnetic Films
• Application of Amorphous Flake to Electromagnetic Interference (EMI) Noise Filter
• Analysis of ESD Immunity of Electronic Equipment Based on Ground Potential Variations (Special Issue on Discharge and Electromagnetic Interference)

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