组件正确布局和选择是电子设备或系统控制EMI的关键  

The correct layout and selection of components is the key to controlling EMI in electronic equipment or system

作　　者：叶云燕 

机构地区：[1]不详

出　　处：《磁性元件与电源》2019年第7期156-161,168,共7页Components and Power

摘　　要：本文对电子设备或系统中组件(包括电感器、变压器、电压调节器及转换器等)的正确布局和选择是控制EMI关键问题作研讨。并以开关调节器与单端主电感转换器(SEPIC)共模噪声中的抑制和磁辐射的降低及如何采用增加气隙的铁氧体磁芯设计制作电感器变压器以实现控制EMI的作用等二大问题为重点作分析说明。in this paper, the correct layout and selection of components in electronic equipment or system (including inductors, transformers, voltage regulators and converters, etc.) is a key issue in EMI control. In addition, the suppression of the common mode noise and the reduction of magnetic radiation between the switch regulator and the single-terminal main inductor converter (SEPIC) are analyzed, and how to use the ferrite core to in crease the air gap to design and make the inductor transfoHner so as to realize the function of control ling EMI is al so discussed.

关 键 词：开关调节器 电感转换器 传导噪声与磁辐射 铁氧体磁芯 

分 类 号：TN6[电子电信—电路与系统]