薄膜解耦集成磁件的结构设计与研究

Physical Design and Research of Thin-Film Decoupling Integrated Magnetic Components

文中分析了磁件解耦集成的基本原理,得出了磁件实现解耦集成所需的基本条件;根据抵消绕组间耦合作用的方法设计了一个解耦的集成磁件,将一个小功率变压器和一个电感集成在一起;采用薄膜化技术设计制作该集成磁件的薄膜磁芯;为了消除采用传统磁件结构时磁件两端的漏磁,设计了特殊的磁芯结构和与其相配套的绕组结构;对该磁件进行了仿真研究,验证了设计的有效性和可行性。

This paper analyses the fundamental principle of decoupling integrated magnetic components and the basic condition. A decoupling integrated magnetic component is designed on base of the method of counteracting coupling among windings, which integrates a low power transformer and an inductor together. The film magnetic core is designed by thin-film technique. In order to avoid the leakage at either side of the component, the specific core and winding structure are designed. The validity and feasibility are testified by simulation.