Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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EMC Debugging Technique for Image Equipments

영상기기의 EMC Debugging 기술

  • Song, Min-jong (Department of Radiological Technology, Gwangju Health University) ;
  • Kim, Jin-Sa (Department of Automatic System, Chosun College of Science & Technology)
  • 송민종 (광주보건대학교 방사선과) ;
  • 김진사 (조선이공대학교 자동화시스템과)
  • Received : 2021.10.14
  • Accepted : 2021.10.22
  • Published : 2022.03.01
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Abstract

For the purpose of treating health checkups and recovery of patients in a super-aged society, hospitals use devices designed with a reduction circuit of electromagnetic waves associated with the specific absorption rate of electromagnetic waves absorbed by the human body. In this paper, we proposed a filter improvement design method capable of reducing electromagnetic waves. As a result of confirming the validity of the proposed technique through simulation and experimental results, the following result values were obtained. Applying the common-mode (CM) inductor 4 mH to a calibration circuit, noise decreased in a multiband spectrum. Using the differential mode(DM) inductor 40 µH element in the primary calibration circuit, the noise decreased by 15 dB or more in the 3 MHz band spectrum. Also, applying the Admittance Capacitance (Y-Cap) 10 nF element in the secondary calibration circuit resulted in the decrease by more than 30 dB in the band spectrum before 2 MHz. After using a common-mode inductor 4 mH element in the tertiary calibration circuit, it decreased by more than 15 dB in the band spectrum after 2 MHz.

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Acknowledgement

이 논문은 2019년도 광주보건대학교 교내연구비의 지원을 받아 수행된 연구임(No. 2019016).

References

  1. J. S. Kim, J. Korean Inst. Electr. Electron. Mater. Eng., 33, 151 (2020). [DOI: https://doi.org/10.4313/JKEM.2020.33.2.151]
  2. H. W. Ott, Electromagnetic Compatibility Engineering (John Wiley & Sons, New York, 2009).
  3. D. A. Paice, Power Electronics Converter Harmonics, Multipulse Methods for Clean Power (Wiley-IEEE Press, 1991).
  4. T. C. Neugebauer and D. J. Perreault, IEEE Trans. Power Electron., 21, 282 (2006). [DOI: https://doi.org/10.1109/TPEL.2005.861103]
  5. N. Narendran, N. Maliyagoda, L. Deng, and R. M. Pysar, Proc. SPIE 4445, Solid State Lighting and Displays (SPIE, San Diego, USA, 2001). [DOI: https://doi.org/10.1117/12.450037]
  6. J. N. Seo, Ph. D. Thesis, Chonnam National University, Gwangju (2009).
  7. S. Ye, W. Eberle, and Y. F. Liu, IEEE Trans. Power Electron., 19, 1668 (2004). [DOI: https://doi.org/10.1109/TPEL.2004.836629]