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一种基于传感与注入复用配置的新型T型有源EMI滤波器

A Novel T-Type Active EMI Filter Based on Sensing and Injection Multiplexing Configuration

语言:

中文摘要

本文提出了一种基于传感与注入复用配置的新型T型有源EMI滤波器(T-AEF)。该方案利用三电容T型结构实现共模(CM)噪声的传感与注入,同时抑制差模(DM)噪声。通过纯电阻运算放大器网络对传感的CM噪声进行放大与调节,有效提升了EMI滤波性能。

English Abstract

In this letter, a novel T-type active EMI filter based on sensing and injection multiplexing configuration (T-AEF) is proposed. A three-capacitor T-type configuration is constructed to sense common-mode (CM) noise, inject CM noise and reduce differential-mode (DM) noise. Meanwhile, the sensed CM noise is amplified and tuned by a pure resistive based op-amp network. Distinguished feature of the pro...
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SunView 深度解读

电磁兼容(EMC)是阳光电源组串式逆变器、PowerTitan储能系统及充电桩产品研发中的核心挑战。该T-AEF拓扑通过复用配置简化了电路结构,在保证滤波性能的同时降低了器件成本与体积。对于阳光电源而言,该技术可应用于高功率密度逆变器及储能PCS的输出侧,有效抑制高频开关噪声,提升系统电磁兼容性。建议研发团队评估该方案在宽禁带半导体(SiC/GaN)应用场景下的噪声抑制效果,以优化产品电磁屏蔽设计,缩短认证周期。