高频薄膜微电感建模与耦合度分析  

Model and Coupling Degree Analysis for High-frequency Thin-film Microinductors

作　　者：陈义祥[1] 董纪清[1] CHEN Yi-xiang DONG Ji-qing(College of Electrical Engineering and Automation of Fuzhou University, Fuzhou ,350116, China)

机构地区：[1]福州大学电气工程与自动化学院,福建福州350116

出　　处：《电气开关》2017年第3期47-50,54,共5页Electric Switchgear

摘　　要：分析高频下薄膜微电感磁路磁阻的非线性,根据磁通分布情况建立了两相耦合跑道型薄膜微电感的磁路模型,结合磁路模型研究了跑道型薄膜微电感的磁芯中柱气隙大小、磁芯分层情况、工作频率大小、两相绕组间距大小以及边柱气隙大小对耦合度的影响,并运用Maxwell软件的仿真结果验证了理论分析的准确性。Nonlinear frequency-dependent magnetic resistances for thin-film mieroinduetors are analyzed in the pa- per. The magnetic circuit model for two-phase coupled racetrack-shaped thin-film microinductors is designed on the basis of distribution of magnetic flux. According to the magnetic circuit model, this paper analyses the effects of air gap of mag- netic core middle column, magnetic core lamination, working frequency, the distance between the two phase air gap of magnetic core side column for coupling degree. windings and Then the effects for coupling degree is simulated by Maxwell software. The theoretical analysis results based on magnetic circuit model are well consistent with the simulation.

关 键 词：跑道型薄膜微电感 磁路模型 耦合系数 

分 类 号：TM15[电气工程—电工理论与新技术]