摘要:本文介紹了鐵氧體磁珠及其工作原理,分析了磁珠與電感的聯系與區別,著重介紹了片式電感與片式磁珠及其應用。詳細分析了磁珠在開關電源設計過程中的使用與選用。
敘詞:磁珠,鐵氧體,電磁干擾(EMI),電感
Abstract:The ferrite magnetic bead and its principle of work are introduced in this paper. The relation and the difference of magnetic bead and inductance are analyzed. Chip inductor and chip magnetic bead are introduced emphatically. Finally, the use and the select of ferrite magnetic in switching power supply design process are given in detail.
Keyword:magnetic bead, ferrite, Electro Magnetic Interference (EMI), inductance