EMI mitigation by substrate integrated common mode filter
Conference: CIPS 2022 - 12th International Conference on Integrated Power Electronics Systems
03/15/2022 - 03/17/2022 at Berlin, Germany
Proceedings: ETG-Fb. 165: CIPS 2022
Pages: 6Language: englishTyp: PDF
Authors:
Seliger, Norbert; Dechant, Eduard (Technical University of Applied Sciences Rosenheim, Rosenheim, Germany)
Kennel, Ralph (Chair of Electrical Drive Systems and Power Electronics, Technical University Munich, Munich, Germany)
Abstract:
In this research we propose a novel common mode (CM) EMI filter without discrete components for power electronic converters which is realized on a thin film standard printed circuit (PCB) substrate. The EMI low-pass filter features an integrated shunt capacitor, a defective ground structure (DGS) and provides EMI noise reduction greater than 10dB from 1MHz to 1GHz. We present a filter prototype and demonstrate its performance on a DC/DC buck converter with 650V rated GaN HEMTs which operate with a dv/dt=100V/ns.