• Title/Summary/Keyword: Line Impedance Stabilization Network (LISN)

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A Study on Conducted EMI Emission Characteristics in 3-Phase PWM Converter (3상 PWM 컨버터의 전도성 EMI 특성에 관한 연구)

  • 채영민;고재석;목형수;최규하;홍순찬;백수현;이은웅
    • The Transactions of the Korean Institute of Power Electronics
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    • v.2 no.2
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    • pp.41-48
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    • 1997
  • Nowadays, EMI emission characteristics, which causes harmful effect on power distribution system and other equipments, have been studied in field of Power electronics, vigoriously. So, in this paper, the conducted EMI emission is measured and compared for 3-phase diode rectifier and PWM converter according to switching frequency variation and current control method change using LISN(Line Impedance Stabilization Network) and spectrum analyzer.

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Harmonic Analysis of Three-Phase Diode Rectifier and Measurement of Conducted EMI Emission Using LISN (3상 다이오드 정류기의 고조파 해석 및 LISN을 이용한 노이즈 측정에 관한 연구)

  • Chae, Y.M.;Choe, G.H.;Mok, H.S.;Lee, E.W.;Hong, S.C.;Baek, S.H.
    • Proceedings of the KIEE Conference
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    • 1995.07a
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    • pp.212-215
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    • 1995
  • In this paper, The characteristic of Harmonic spectrum is studied for generally used three-phase diode rectifier. and filter design criteria is showen in the sense of THD, DPF, and PF. As the becoming of Automative and informative era, the demand of critical and stable control becomes more and more important. But much EMI emissions are generated for more critical and stable control in power electronic system these EMI emissions can be measured using LISN(Line Impedance Stabilization Network). So we are to investigate the behavior of Conducted EMI emission in Diode Rectifiers using LISN in frequency domain.

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Small Loop Antenna for EMI Controlled and Monitoring

  • Khemchan, A.;Khamphakdi, P.;Urabe, Junichiro;Khan-ngern, W.
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.470-473
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    • 2004
  • This paper presents conducted emission noise measurement from electronic equipment in frequency range of 1 MHz up to 30 MHz by small loop antenna. Small loop antenna measurement method can measure common-mode (CM) and differential-mode (DM) component of the noise on a pair of power line at the same time. The CM and DM can be measured separately. The theory of this measurement method is introduced and analyzed. The measured results were compared with the conventional measurement by Line Impedance Stabilization Network (LISN) and result a good trend between those methods.

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Electromagnetic Susceptibility Analysis of I/O Buffers Using the Bulk Current Injection Method

  • Kwak, SangKeun;Nah, Wansoo;Kim, SoYoung
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.13 no.2
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    • pp.114-126
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    • 2013
  • In this paper, we present a set of methodologies to model the electromagnetic susceptibility (EMS) testing of I/O buffers for mobile system memory based on the bulk current injection (BCI) method. An efficient equivalent circuit model is developed for the current injection probe, line impedance stabilization network (LISN), printed circuit board (PCB), and package. The simulation results show good correlation with the measurements and thus, the work presented here will enable electromagnetic susceptibility analysis at the integrated circuit (IC) design stage.

Classification and Comparison of EMI Mitigation Techniques in Switching Power Converters - A Review

  • Yazdani, Mohammad Rouhollah;Farzanehfard, Hosein;Faiz, Jawad
    • Journal of Power Electronics
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    • v.11 no.5
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    • pp.767-777
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    • 2011
  • Power electronic systems such as switching power supplies are accounted as noise sources for other sensitive circuits. EMI caused by power converters can disturb the normal operation of the converter and other adjacent systems. Major research is concentrated on EMI mitigation for power converters in which the main concern is compliance with EMC standards to ensure proper operation of converters and nearby systems. This paper reviews EMI reduction techniques related to switching power converters with emphasis on the conducted EMI. A comprehensive review of significant research works is performed and various methods are thoroughly discussed and compared. Also, a classification of methods is presented. Moreover, converter prototypes are realized which contain several EMI mitigation techniques and their effects are presented via experimental results.