Presentation 1995/10/20
An Analysis of Load Effect produced by EMI Ferrite Core Attachment
Takeshi ICHIKAWA, Osamu FUJIWARA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Ferrite cores are commonly used to suppress the electromagnetic noise emitted from digital information equip-ment, and also to improve the immunity level against the noise. This is largely because the information of the portion attached by the ferrite core increases with frequencies, resulting from reduction of the high frequency current flowing on that portion. The mechanism, however, is not being theoretically elucidated in relation to the core dimension and material. This paper analyzes the high frequency impedance of the lead produced by the ferrite core attachment, thereby showing the equivalent circuit for the load effect. The dimension design method is given for effectively enhancing the resistive impedance per unit core length. Measurement of the vector impedance is also made to validate the equivalent circuit derived here.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ferrite core / load effect / analysis / core dimension design / measurement
Paper # EMCJ95-39,MW95-83
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Conference Information
Committee EMCJ
Conference Date 1995/10/20(1days)
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Paper Information
Registration To Electromagnetic Compatibility (EMCJ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Analysis of Load Effect produced by EMI Ferrite Core Attachment
Sub Title (in English)
Keyword(1) Ferrite core
Keyword(2) load effect
Keyword(3) analysis
Keyword(4) core dimension design
Keyword(5) measurement
1st Author's Name Takeshi ICHIKAWA
1st Author's Affiliation Faculty of Engineering, Nagoya Institute of Technology()
2nd Author's Name Osamu FUJIWARA
2nd Author's Affiliation Faculty of Engineering, Nagoya Institute of Technology
Date 1995/10/20
Paper # EMCJ95-39,MW95-83
Volume (vol) vol.95
Number (no) 324
Page pp.pp.-
#Pages 6
Date of Issue