- Volume 27 Issue 3
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Radiated Emission of Electrical Fast Transient/Burst Signal and Its Countermeasures
전기적으로 빠른 과도현상/버스트 신호의 복사방출과 대책
Park, Soo Hoon;Kim, Dong Il;Park, Youn Joon;Nah, Seung Wook
- Received : 2015.12.18
- Accepted : 2016.02.25
- Published : 2016.03.31
In this paper, we studied about the radiated emission of EFT(Electrical Fast Transient)/Burst signal, referenced IEC-61000-4-4 of the international EMC standard and its effect on EUT(Equipment Under the Test) when EFT/Burst signal (Conducted noise) induced on a power cable to EUT. Firstly, we set up test sample by the standard and +4 kV standard signal is induced by EFT/Burst signal generator with 1 m length power cable for 1 minute. Consequently, we found not only induced EFT/Burst signal along power line, but also directly radiated emission signal from EFT/Burst signal generator (Radiated emission noise of EFT/Burst). The radiated emission signal of EFT/Burst was 30 dB which is higher than limit of CISPR 22 which is international EMC standard. Moreover, we measured the electric field strength by changing distance from maximum radiated emission point to electric field strength tester. As a result, this electric field strength was 23 V/m which is higher than international EMC standard test level(CISPR 24). Therefore, it was confirmed that the probability of malfunction may be high when radiated emission of EFT/Burst noise exists near the EUT.
Electrical Fast Transient/Burst Signal;Radiated Signal;Electric Field Strength;Malfunction
- Koide R, Ueda TN, Dawson WW, et al, "Retinal hazard from blue light emitting diode", Nippon Ganka Gakkai Zasshi(in Japanese), 105(10), pp. 687-695, Oct. 2001.
- 권종화, "전자파 인체영향 관련 국외연구 동향", 한국전자파학회논문지, 26(2), pp. 3-9, 2015년 3월.
- 채희준, 안준오, "EU의 직업인 전자파 인체보호를 위한 지침", 한국전자파학회 전자파기술, 26(2), pp. 40- 44, 2015년 3월.
- Electromagnetic compatibility(EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/ burst immunity test, IEC 61000-4-4, 2012.
- 유태훈, 육종관, 홍익표, Ott의 EMC 공학(실무응용편), 학산미디어, pp. 46, 59-62, 2013년.
- Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement, CISPR 22 Ed. 6.0 b, 2012.
- 유태훈, 육종관, 홍익표, Ott의 EMC 공학(실무응용편), 학산미디어, pp. 147-159, 2013년.
Supported by : 한국기술연구소(주)