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http://dx.doi.org/10.5394/KINPR.2010.34.1.033

Development of EMC filter for electronic equipments mounted on ships  

Kim, Dong-Il (Dept. of Radio Sciences and Engineering, Korea Maritime University)
Kim, Eun-Mi (Dept. of Radio Sciences and Engineering, Korea Maritime University)
Jeon, Mi-Hwa (Dept. of Radio Sciences and Engineering, Korea Maritime University)
Abstract
It is very important to prevent the electromagnetic interference and to prevent malfunction of electronic equipments mounted on ships. To solve these problems, in this paper, the EMC filter was designed, fabricated, and tested. The Ni-Zn ferrite beads with high permeability were used to make large inductance as the inductor and the feed-through capacitors without any resonance points. As a result, excellent attenuation characteristics of 25~70 dB were obtained from the 0 kHz~1.5 GHz band. In addition, when the Electric Fast Transient (EFT) of 4 kV in the level 4 of IEC 61000-4-4 was induced the EFT reduced to 600 V. Therefore, it was clearly shown that the developed EMC felter can be used for suppressing the electromagnetic interference on-board electronic devices and equipments.
Keywords
EMI; EMS; EMC filter; transmission coefficient; ferrite beads; feed-through capacitors;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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