阻抗失配对传导电磁干扰发射的影响

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Pub Date : 1900-01-01 DOI:10.1109/CEEM.2003.238066

W. Thammasiriroj, S. Ruayariyasub, W. Khan-ngern, S. Nitta

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引用次数: 1

摘要

提出了一种利用阻抗失配法预测和分析传导电磁干扰(EMI)发射的方法。介绍并分析了该工艺的五个步骤。提出了基于时域电流和电压波形的阻抗失配判据。阻抗失配装置和电磁干扰测量结果显示了阻抗比与传导电磁干扰发射之间的关系。采用E类零电压开关(ZVS)谐振逆变器，在不同的负载条件下(统一、滞后和超前功率因素)完成了这项工作。实验结果与仿真结果吻合较好，并通过MATLAB程序进行了验证。

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The effect of impedance mismatch on the conducted EMI emission

The paper proposes a process to predict and analyze conducted electromagnetic interference (EMI) emission using the impedance mismatch approach. Five steps of this process are introduced and analyzed. The impedance mismatch criterion is proposed based on current and voltage waveforms in the time domain. The impedance mismatch fixtures and EMI measured results show how the impedance ratio and conducted EMI emission are related. The work was done using a class E zero-voltage switching (ZVS) resonant inverter at various load conditions - unity, lagging and leading power factors. The experimental results show good agreement with simulated results, which are accomplished by the MATLAB program.

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Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings.

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