Noise Reduction on The Use of Different Ground Model on The EMI Filter of Reading and Desk LED Lighting for Passenger Train

Haryo Dwi Prananto, Muhammad Imam Sudrajat, Priyo Wibowo, Yoppy Yoppy, R. Harry Arjadi


Initial measurement showed that reading LED lighting used in this experiment produced excessive conducted emissions (CE). EMC filter is needed to suppress the CE noise. The LED light is AC powered through a two-wire cable without ground wire, whereas the EMC filter does have ground. Experiments were conducted to find out the attenuation effect of different filter’s grounding connection methods. Four cases of grounding connections are measured and compared, i.e. unconnected ground, earth-connected ground, chassis-connected ground, and additional ground plate. Measurements showed that chassis-connected ground had the strongest attenuation effect. Also, for the additional ground plate configuration, it turned out  that larger plates exhibited stronger attenuation compared to smaller plates.

Keywords : LED driver, EMC Filter, grounding, impedance, common mode

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H. W. Nugroho, P. Wibowo, R. H. Arjadi, H. D. Prananto, and M. I. Sudrajat, “Characteristics of Electromagnetic Interference LED Lightings for Passenger Train,” in 2017 International Multidisciplinary Conferences on Productivity and Sustainability, Jakarta, 2017, pp. 43–46.

P. Wibowo, H. D. Prananto, Y. Yudhistira, Y. Yoppy, M. K. Anam, and R. H. Arjadi, “Characterization of Electromagnetic Compatibility Performance of Trains LED Lighting by Mapping of Radiated Interference Distribution,” in 2017 International Multidisciplinary Conferences on Productivity and Sustainability, Jakarta, 2017, pp. 39–42.

H. Chen, P. Meng, and J. Li, “Series-Connected Grounding of Common-Mode EMI Filter,” IEEE Trans. Electromagn. Compat., vol. 52, no. 4, pp. 1066–1068, 2010.

C. M. Araújo, “Characterization of electromagnetic interference conducted in DC-DC Buck Converter LED Light in accordance with CISPR 25 - Class,” in 2018 13th IEEE International Conference on Industry Applications, Sao Paulo, Brazil, 2018, pp. 1259–1265.

S. Wang, S. Member, Y. Y. Maillet, and F. Wang, “Parasitic Effects of Grounding Paths on Common-Mode EMI Filter’s Performance in Power Electronics Systems,” IEEE Trans. Ind. Electron., vol. 57, no. 9, pp. 3050–3059, 2010.

S. Jeong, J. Kim, Y. Bek, and G. Park, “A Terminal Ground Filter between Cable and Chassis for Reduction of Conducted Emissions at a Home Appliance,” 2018 IEEE Symp. Electromagn. Compat. Signal Integr. Power Integr. EMC SI PI, pp. 414–418, 2018.

M. I. Montrose, Printed Circuit Board Design Techniques for EMC Compliance — A Handbook for Designers , Second Edition, Second. New York: John Wiley & Sons, Inc, 2000.

H. W. OTT, Electromagnetic Compatibility Engineering. New Jersey: John Wiley & Sons, Inc., 2009.

G. Held, Introduction to Light Emitting Diode Technology and Aplications. Boca Raton, 2009.

“Multiple Line Filter,” Wurth Electronik, 2018. [Online]. Available:

M. R. A. Cahyono, “Analisa Pemanfaatan Harmonisa Sebagai Sumber Energi Alternatif dengan Filter Pasif,” J. Nas. Tek. Elektro, vol. 7, no. 3, pp. 161–168, Nov. 20



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