Conducted EMI Spectra of Average-Current-Controlled Boost PFC Converters Operating in Both CCM and DCM
Conducted EMI Spectra of Average-Current-Controlled Boost PFC Converters Operating in Both CCM and DCM
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DOI：
10.1109/tie.2014.2361483
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发表时间：
2015-04
影响因子：
7.7
通讯作者：
Qing Ji;X. Ruan;Lihong Xie;Z. Ye
中科院分区：
文献类型：
--
作者：
Qing Ji;X. Ruan;Lihong Xie;Z. Ye
在不同的输入电压和负载条件下，平均电流控制的升压功率因数校正转换器可以在半个线路周期中以全连续电流模式（CCM）、部分CCM/不连续电流模式（DCM）或全DCM模式操作，并且转换器的传导电磁干扰（EMI）频谱在这些操作模式中表现出差异。本文通过对功率开关管漏源电压谐波特性的分析，揭示了变换器在不同工作模式下的共模和差模噪声特性。分析结果可用于指导变换器的EMI滤波器设计，确保变换器在各种工作条件下的传导EMI满足标准。
The average-current-controlled boost power factor correction converter may operate in all-continuous current mode (CCM), part-CCM/discontinuous current mode (DCM), or all-DCM mode in a half line cycle under different input voltage and load conditions, and the conducted electromagnetic interference (EMI) spectrum of the converter exhibits differences in these operation modes. In this paper, by analyzing the characteristic of the harmonics of the drain-to-source voltage of the power switch, the characteristics of the common-mode and differential-mode noise of the converter are revealed in different operation modes. The analyzed results can be used to guide the EMI filter design for the converter and ensure the conducted EMI satisfying the standard under all working conditions.