摘要
抗干扰滤波器已成为开关电源不可缺少的器件。本文从磁性材料的角度分析了抗干扰滤波器中电感材料的选择原则,即根据干扰信号的类型(共模或差模)选取对应的磁性材料。并按照所需抑制频段研制该材料的磁性能,使之适合该抑制频段需要。最后本文讨论了抗干扰滤波电感器件向片式化和薄式化的方向发展的趋势。
According to the type of jamming signal (common mode or differential - mode), the selecting principle of material for anti - jamming inductance fitter is analyzed on the basis of magnetic materials. This material must be developed according to blanketing frequency. This paper also introduces the tendency to develop sheet and thin filer inductance with the microminiaturization of switching power supply.
出处
《上海钢研》
1999年第5期22-28,共7页
Journal of Shanghai Iron and Steel Research
关键词
电磁干扰
电磁兼容
共模
差模
抗干扰滤波器
Electromaguetic interfering (EMI) electromagnetic compatibility (EMC) common - mode differential - mode anti - jamming fitter
