ANALISIS EFEK KOMPONEN PARASITIK TERHADAP KINERJA FILTER EMI DALAM RANGKA MEMITIGASI EMISI RADIASI

Abstract

To reduce conduction and radiation emissions in electronic devices can use EMI filters.
However, the use of EMI filters can also cause the parasitic appearance of the components
used in the filter. Parasitic components can cause spikes in radiation emissions as well as
conduction at high frequencies. To minimize the surge in radiation emissions in the filter
circuit, several steps can be applied, namely providing shielding, ground plane, and also
adjusting the layout of components on the printed circuit board (PCB). The purpose of this
study was to look at the efficiency of the EMI passive filter circuit that will be applied to
LED lights in dampening the radiation emissions produced by LED lights. Size is done in
two-room conditions when many measurements are taken and when the room is used only
to measure radiation emissions. The measurement results showed the EMI filter with the
addition of shielding and a distance of 5 mm between the inductor and capacitor used
resulted in a difference of 0.4 dBμV with an EMI filter with additional shielding and
ground plane. Emissions produced by lights before and after are given shielding, ground
plane, and the addition of distance between components does not exceed the CISPR limit of
11.