POLLACK PERIODICA An International Journal for Engineering and Information Sciences DOI: 10.1556/606.2016.11.3.13 Vol. 11, No. 3, pp. 141–152 (2016) www.akademiai.com HU ISSN 1788–1994 © 2016 Akadémiai Kiadó, Budapest EMC MEASUREMENT SYSTEMS AND NOISE SUPPRESSION METHODS FOR LED LAMPS AND RF LIGHTING CONTROLS 1 Róbert ISTÓK, 2 Péter KÁDÁR Power System Department, Kálmán Kandó Faculty of Electrical Engineering Óbuda University, Alternative Energy Source Knowledge Center, Budapest Hungary, e-mail: 1 istok.robert@kvk.uni-obuda.hu, 2 peter.kadar@kvk.uni-obuda.hu Received 28 December 2015; accepted 13 June 2016 Abstract: The role of light-emitting diode lamps and radio frequency lighting controls is to reduce the energy consumption. The increase of lighting network complexity determines the increase of EMC noise emission. Being familiar with measurement systems is important for making correct measurement and for understanding the results of the measurement. Correct interpretation of measurement results is the first step in choosing the best suppression method. The suppression method depends on the common mode and the differential mode of noise type and on the frequency of signal noise. Keywords: Light-emitting diode, Electromagnetic compatibility, Receiver detectors, Antennas, Conducted noise, Radiated noise, Common differential mode filter, Radiated power 1. Introduction Energy consumption of lighting represents around 30% of total energy consumption. In a world where pollution becomes one of the most important problems, the reduction of energy consumption is equivalent to the reduction of environment pollution [1]. This way the energy management is followed by lighting industry too. Higher efficiency became the guide; this is the reason why the lighting industry is in a process of continuous transformation. Together with Light-Emitting Diode (LED) lamps the lighting control system is calling to reach a reduction of energy consumption more than 50% [2].