环面
电感
有限元法
电磁线圈
电磁干扰
材料科学
铁氧体磁芯
横截面(物理)
电感器
芯(光纤)
机械
电磁干扰
物理
电气工程
工程类
复合材料
等离子体
电压
量子力学
热力学
作者
Xinru Li,Luke Shillaber,Zhi‐Chao Luo,Xufu Ren,Borong Hu,Chaoqiang Jiang,Teng Li
标识
DOI:10.1109/tmag.2023.3287095
摘要
This article introduces a toroidal nanocrystalline powder core with a trapezoidal cross section. The nonuniform magnetic flux distribution of toroidal cores with different cross-sectional geometries is discussed, the inductance equations are derived, and the geometrical optimization factor is given in order to retain the highest possible inductance value while minimizing material usage. A ten-turn coil is wound on the core, with the measured inductance values showing a good match with both finite element method (FEM) and mathematical calculation. The near-field electromagnetic interference (EMI) radiation in close proximity to the inductor is investigated by both FEM and experimental validation, and the toroidal core with a trapezoidal cross Section has shown reduced EMI. By adopting a trapezoidal cross Section for the toroidal core, a 30% reduction in material usage and lower EMI are achieved, albeit with a compromise of 14% in inductance.
科研通智能强力驱动
Strongly Powered by AbleSci AI