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    • 2. 发明授权
    • Method for analyzing DC superposition characteristics of inductance device, and electromagnetic field simulator
    • 分析电感器件直流叠加特性的方法和电磁场仿真器
    • US08723508B2
    • 2014-05-13
    • US13121488
    • 2009-09-30
    • Takeshi TachibanaSatoru TanakaKeiko Kikuchi
    • Takeshi TachibanaSatoru TanakaKeiko Kikuchi
    • G01B7/14
    • G06F17/5036G06F17/5018G06F2217/16
    • A method for analyzing the DC superposition characteristics of an inductance device using an electromagnetic field simulator, comprising a first step of determining an initial magnetization curve from initial magnetization to saturation magnetization, and pluralities of minor loops at different operating points, on a toroidal core made of the same magnetic material as that of the inductance device, and obtaining point-list data showing the relation between magnetic flux density or magnetic field strength and incremental permeability from the incremental permeability at each operating point; a second step of determining an operating point at a predetermined direct current on each element obtained by mesh-dividing an analysis model of the inductance device by an electromagnetic field simulator based on the initial magnetization curve of the core, allocating the incremental permeability to the operating point from the point-list data, and integrating the inductance of each element obtained from the incremental permeability to determine the inductance of the entire inductance device; and a third step of repeating the second step at different direct current levels to determine the DC superposition characteristics.
    • 一种用于分析使用电磁场模拟器的电感装置的DC叠加特性的方法,包括:确定初始磁化到饱和磁化的初始磁化曲线的第一步骤,以及在不同工作点上的环形磁芯上的多个次循环 与电感器件相同的磁性材料,从每个工作点获得表示磁通密度或磁场强度与增量磁导率之间关系的点列表数据; 通过基于所述芯的初始磁化曲线的电磁场模拟器网格划分所述电感装置的分析模型而获得的每个元件上确定在预定直流电流下的工作点的第二步骤,将所述增量磁导率分配给所述操作 从点列表数据点,并且积分从增量磁导率获得的每个元素的电感,以确定整个电感器件的电感; 以及在不同直流电平下重复第二步骤以确定DC叠加特性的第三步骤。