T29.1 - Island Shielding Design for Power Modules to Reduce Common-mode EMI Noise

Thursday, March 26, 2026

8:20 AM - 8:40 AM CT

Location: 217A

Technical Lecture Presenter(s)

Vafa Marzang (he/him/his)

University of Florida

Co-Author(s)

Qinghui Huang

University of Florida
Yirui Yang, PhD (he/him/his)

University of Florida
Yanwen Lai

University of Florida
LZ

Li Zhang

Virginia Polytechnic Institute and State University
Guo-Quan (GQ) Lu

Virginia Polytechnic Institute and State University
Shuo Wang

University of Florida

This digest presents the derivation of an EMI model for a power module incorporating a shielding layer. Based on the model, an RC diverting path is proposed to damp the resonance between the diverting-path capacitance and the equivalent series inductance of the DC-link capacitor. In addition, an island shielding technique is introduced to enhance common-mode (CM) EMI noise reduction. Experimental verification on a power module demonstrates the effectiveness of the proposed approaches.