推荐星级：

数字有源EMI滤波器解耦电路的设计方法

更新时间：2020-08-21 11:05:06 大小：351K 上传用户：xiaohei1810 查看TA发布的资源 标签：emi 滤波器 下载积分：5分评价赚积分（如何评价?）收藏评论(0) 举报

资料介绍

针对数字有源EMI滤波器（DAEF）信号检测点与注入点的耦合会降低EMI抑制性能问题,通过建立含有解耦电路的DAEF模型,仿真分析解耦电路对滤波特性的影响,提出一种DAEF系统解耦电路的设计方法。该方法基于实测阻抗匹配原则,在不改变原电路结构,不增加DAEF体积的前提下,大幅度提高了DAEF系统EMI抑制能力。基于FPGA控制器搭建了含有解耦电路的DAEF控制系统平台,实验验证了所提出的解耦电路设计方法,有效地提高了DAEF的滤波能力。

Aiming at the problem that the coupling between EMI signal detection point and injection point in digital active EMI filter （DAEF） reduces EMI suppression performance, presented a design method about decoupling circuit in DAEF system through building DAEF model with decoupling circuit and analyzing effect of the decoupling circuit on filter characteristics. Based on real tested impedance matching principle, and no changing original circuit structure and no increasing the volume of DAEF, this method greatly improves DAEF system EMI suppression performance. Built a DAEF control system with decoupling circuit based on FPGA controller. Experiments results show that the proposed method effectively improves the filtering perf...