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The Analysis of Effect for Photocoupler by Narrow-Band High-Power Electromagnetic Wave

협대역 고출력 전자기파에 의한 포토커플러 영향 분석

  • Lee, Sung-Woo (Department of Electrical Engineering, Inha University) ;
  • Huh, Chang-Su (Department of Electrical Engineering, Inha University) ;
  • Seo, Chang-Su (Department of Electrical Engineering, Inha University) ;
  • Jin, In-Young (Department of Electrical Engineering, Inha University)
  • Received : 2017.10.10
  • Accepted : 2017.10.23
  • Published : 2018.01.01

Abstract

This study analyzed the change of electrical characteristics of a photocoupler when a narrow-band electromagnetic wave was combined with the photocoupler. A magnetron (3 kW, 2.45 GHz) was used as the narrow-band electromagnetic source. The EUT was Photocoupler (6N139) and the input signal was divided into two types: a square pulse and the second signal is 0 V. The malfunction of the photocoupler was confirmed by monitoring the variation in the output voltage of the photocoupler. As a result of the experiment, changes in the malfunctioning was observed as the electric field was increased. There are three types of malfunction modes: delay, output voltage off, and fluctuation. Bit errors were analyzed to verify the electrical characteristics of the photocoupler by narrow-band electromagnetic waves. The result of this study can be used as basic data for the effect analysis of photocoupler protection and impact analysis of high-power electromagnetic waves.

Keywords

References

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