一种叠层片式大电流磁珠的设计研究

摘要

叠层片式大电流磁珠是为了适应电子设备尤其是电源部分电磁兼容的需要而提出研制的.它具有:尺寸小、质量轻、耐电流高、磁路闭合、抗电磁干扰能力强;独石结构、便于元件的高密度表面贴装生产等优点.主要介绍了一种叠层片式大电流磁珠的材料和结构设计的研究工作.并研制出了一种耐电流9 A的4532型叠层片式大电流磁珠.%Multilayer large current chip beads are studied for application of electronic devices, especially for EMC (electromagnetic compatibility) of power supply. The advantages of this chip beads possess small size, light weight and high current capability, closed magnetic path, high EMI (Electro-Magnetic Interference) immunity and so on. They are suited for high density SMT (Surface Mounting Technology) production of components with multilayer ceramic structure.The research of materials and structure design ora multilayer large current chip beads was introduced, and a series of 4532 chip beads with standing current of 9A were produced according to the conclusion.