Characteristics of a Noise Filter Made from Nanocrystalline Fe-Nb-B Alloys

Publisher Website
Google Scholar
Abstract
Noise filter characteristics of a common-mode choke coil fabricated from a nanocrystalline Fe84Nb7B9 alloy were investigated with the aim of clarifying its potential for application as a core material. The impulse attenuation characteristics of the choke coil with the nanocrystalline alloy core were found to be superior to those of one with an Mn-Zn ferrite core. The choke coils made from the nanocrystalline alloy and the amorphous alloy cores showed higher attenuation in the frequency f range above 1 MHz. The common-mode attenuation of the choke coil with the nanocrystalline alloy core exhibited attenuation values higher than those of the ones with the other two cores in the frequency f range above 4 MHz. The conducted radio noise characteristics of the choke coil with the nanocrystalline alloy core were confirmed to be superior to those of the one with the amorphous alloy core. The attenuation of the former was 5 dB higher than that of the latter.

This publication has 0 references indexed in Scilit: