This letter presents a family of filter topologies for circulating current and conducted emissions mitigation, applicable with parallel and interleaved converters. The proposed alternative topologies are aimed at reducing the overall filter volume using magnetic integration or topological variations. In general, they are classified into three distinct forms, namely in-directly coupled, localized, and direct phase to phase coupled topologies. The emphasis is on pure common mode harmonics but can be extended to differential mode components as well. A quantitative comparison among the variants is made on the basis of simulation/experimental findings and references aiding the designer to select the structure best suited for a particular application.

中文翻译：

---

用于缓解循环电流和传导噪声的替代滤波器结构


这封信介绍了一系列用于减少循环电流和传导发射的滤波器拓扑，适用于并联和交错转换器。所提出的替代拓扑旨在使用磁集成或拓扑变化来减少总体滤波器体积。一般来说，它们分为三种不同的形式，即间接耦合拓扑、局部耦合拓扑和直接相间耦合拓扑。重点是纯共模谐波，但也可以扩展到差模分量。根据模拟/实验结果和参考资料对各种变体进行定量比较，帮助设计人员选择最适合特定应用的结构。