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- Title
Research on the Prediction Method of Conducted Interference in Flyback Converters based on the High-frequency Transformer Model.
- Authors
Mengxia Zhou; Bin Cheng; Jianben Liu; Yakang Pei; Ruining Yao; Yan Liu; Feng Li
- Abstract
Conducted electromagnetic interference (EMI) has always been a challenge for designers of switched-mode power supplies. Flyback converters are used in various applications. However, as the switching frequency of these converters increases, the issue of electromagnetic interference becomes progressively more severe. In light of this, this paper presents a predictive method for conducted interference in flyback converters, based on a high-frequency transformer model. A high-frequency transformer model topology is proposed, integrating traditional inductance models with a three-capacitor model. Subsequently, a self-organizing migrating algorithm (SOMA) is employed for the extraction of parameters from the high-frequency transformer model, and a high-frequency model is established for a transformer. Finally, the high-frequency model is applied to the prediction of conducted interference in flyback converters. The results demonstrate that the proposed predictive method can effectively forecast the actual conducted interference, thereby providing a reference for suppression of conducted electromagnetic interference.
- Subjects
SWITCHING power supplies; ELECTROMAGNETIC interference; RESEARCH methodology
- Publication
Applied Computational Electromagnetics Society Journal, 2024, Vol 39, Issue 1, p81
- ISSN
1054-4887
- Publication type
Article
- DOI
10.13052/2024.ACES.J.390110