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ORIGINAL RESEARCH article
Front. Electron.
Sec. Power Electronics
Volume 6 - 2025 |
doi: 10.3389/felec.2025.1538379
This article is part of the Research Topic Modeling and Control of Power Electronics for Renewables View all 6 articles
Time Domain Analysis of Flyback EMI Based on Distributed Parameters Theory
Provisionally accepted- 1 Shanghai Jiao Tong University, Shanghai, China
- 2 Ginlong Technologies Co., Ltd, ningbo, China
The research about electromagnetic interference (EMI) is normally based on two approaches (i.e. time domain analysis and frequency domain analysis). The frequency domain analysis is easier to apply theoretical model to analyze the circuit loop impedance of EMI noise which can provide guidance of EMI suppression, but it cannot reflect the real amplitude of EMI noise without the real waveforms of noise sources. The time domain analysis is usually based on circuit simulation to get the EMI noise directly, but it is time consuming. In order to combine the advantages of these two approaches, this paper proposes a high frequency equivalent circuit model of flyback converter and analyze the effect of each distributed parameters on the common mode (CM) and differential mode (DM) noise. The experimental result verified the accuracy and efficiency of the proposed method.
Keywords: time domain, Distributed parameters, flyback, EMI, equivalent circuit
Received: 02 Dec 2024; Accepted: 17 Jan 2025.
Copyright: © 2025 Liu, Li, Ji, Wang and Xu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Rui Li, Shanghai Jiao Tong University, Shanghai, China
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