Application of filter inductor in power supply anti-interference

zbz0529

Application of filter inductor in power supply anti-interference [Copy link]

Abstract: From the perspective of magnetic materials, the selection principle of inductor materials in common-mode and differential-mode anti-interference filters is pointed out. It is pointed out that the corresponding magnetic material must be selected according to the type of interference signal (common mode or differential mode), and the magnetic properties of the material must be developed according to the required suppression frequency band to make it suitable for the suppression frequency band. Only in this way can the best anti-interference effect be obtained. Finally, this article points out that the miniaturization of switching power supplies promotes the development of anti-interference inductor devices towards chip-type and thin-type.

Keywords: Electromagnetic Interference (EMI), Electromagnetic Compatibility (EMC), Common Mode, Differential Mode Anti-Interference Filters

xia0qiang

nice one.