초록

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Abstract ▼ AI-Helper

In this paper the internal or external of the ships mounted electronic devices due to the propagation of electromagnetic interference and to prevent malfunction EMC filter was designed and fabricated. It was designed and fabricated with Ni-Zn ferrite beads of high permeability to make large inductan...

In this paper the internal or external of the ships mounted electronic devices due to the propagation of electromagnetic interference and to prevent malfunction EMC filter was designed and fabricated. It was designed and fabricated with Ni-Zn ferrite beads of high permeability to make large inductance as the inductor and Feed-through capacitors, which did not have any resonance point, to restraint resonance effectively, and the characteristics was evaluated. The results from the 0 kHz$\sim$1.5 GHz bandwidth of $25{\sim}70$ dB were able to obtain excellent attenuation characteristics. And, when the Electric Fast Transient (EFT) of 4 kV in the level 4 of IEC 61000-4-4 was induced, it was soon attenuated more than 1/6 to 600 V. Therefore, it was confirmed that the developed EMC filter can be used for suppressing ships mounted electromagnetic interference between electronic devices.