对包括负载射频阻抗效应在内的直流母线变换器进行了发射分析和抑制

2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC) Pub Date : 2016-05-17 DOI:10.1109/APEMC.2016.7522729

Junping He, Zepeng Zhou, Bo Zheng, Mizhao Zhao

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引用次数: 1

摘要

提出了一种考虑负载射频输入阻抗影响的电信直接母线变换器输出侧LISN的CE测试布局。详细分析了交错升压变换器的CM和DM路径。解释了变换器输出电压纹波噪声的调制作用，并发现了由原始DM源引起的非本征调制现象。电路仿真和实验结果验证了上述分析。最后，提出了一些EMI滤波器的设计方法，并进行了测试，以抑制传导的EMI。

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Conducted emission analysis and suppression of an immediate bus converter including load's RF impedance effect

A CE test layout with LISN at output side is proposed for a telecommunication immediate bus converter, which includes load's RF input impedance influences. Both the CM and DM paths of the interleaved Boost converter are analyzed in detail. The CM role of the output voltage ripple noise of the converter is explained and a non-intrinsic CM phenomenon caused by original DM sources is discovered too. Circuit simulation and experiment results verified the above analysis. In the end, some EMI filter design processes are proposed and tested to suppress the conducted EMI.

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2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)

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