从电流平衡的角度研究开关电源的共模噪声

Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475) Pub Date : 1999-07-27 DOI:10.1109/PEDS.1999.792729

Wu Xin, N. Poon, C. Lee, M. Pong, Z. Qian

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引用次数: 52

摘要

在开关电源中，共模噪声电流是电磁干扰的主要来源。本文从电流平衡的角度对其产生机理进行了研究。正确理解共模噪声为解决SMPS中的共模干扰提供了系统的方法。介绍了升压变换器的阻抗平衡和噪声源平衡分析。仿真和实验结果验证了这一概念。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A study of common mode noise in switching power supply from a current balancing viewpoint

Common mode noise current is a major source of EMI in switching mode power supplies. The generation mechanism is studied from a current balancing point of view in this paper. A proper understanding of common mode noise provides a systematic approach to solve common mode interference in SMPS. Impedance balance and noise source balance analysis of a boost converter are presented. Simulation and experiment results are shown to verify this concept.

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Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475)

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