Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Development of Improved EMC Power Line Filter in New Type

  • Kim, Dong-Il (Dept. of Radio Sciences & Engineering, Korea Maritime Univ.) ;
  • Kim, Eun-Mi (Dept. of Radio Sciences & Engineering, Korea Maritime Univ.) ;
  • Ahn, Young-Sup (Dept. of Electronics & Comm. Engineering, Korea Maritime Univ.) ;
  • Jeon, Mi-Hwa (Dept. of Radio Sciences & Engineering, Korea Maritime Univ.)
  • Published : 2008.12.31
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Abstract

Most of malfunctions in electronic equipment or systems controlled by processors is occurred by the differential- and common-mode noises, and the electrical fast transient (EFT). The International Electrotechnical Commission (IEC) has prepared the dummy signal to test the immunity level of the equipment. For the countermeasure against the differential- and common-mode noises, and the EFT, we designed, fabricated, and tested a new electromagnetic compatibility (EMC) filter, which is composed of feed-through capacitors and ferrite beads with high permeability. As a result, the filter showed excellent differential- and common-mode noises filtering, and immunity improving characteristics over the frequency band from 30 MHz to 1.5 GHz and 1.8 GHz, respectively.

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References

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