A Series Diode Method of Suppressing Parasitic Oscillation for Boost PFC Converter Operated in Discontinuous Conduction Mode

A Series Diode Method of Suppressing Parasitic Oscillation for Boost PFC Converter Operated in Discontinuous Conduction Mode
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一种抑制间断导通模式升压PFC变换器寄生振荡的串联二极管方法

DOI:
10.1109/tpel.2017.2668605
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发表时间:
2018
影响因子:
6.7
通讯作者:
Han Yehua
Han Yehua
中科院分区:
工程技术1区
文献类型:
--
作者:
Li Qiang;Yao Kai;Song Junchao;Xu Hairui;Han Yehua

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当Boost功率因数校正变换器工作在断续导通模式时,振荡周期内平均电流的非零特性和开关周期内电感电流的初始值是寄生参数影响输入电流畸变的主要原因。详细分析了寄生参数振荡的影响,提出了串联二极管的方法,有效地减小了输入电流畸变,提高了功率因数。给出了串联二极管的选择原则。实验结果验证了理论分析的正确性和可行性。
When a boost power factor correction converter operates in a discontinuous conduction mode, the nonzero characteristic of the average current in oscillation period and the initial value of the inductor current in a switching cycle are the main cause of the influence of the parasitic parameters on input current distortion. The effect of parasitic parameters oscillation is analyzed in detail, and a new method of series diode is proposed, which can effectively decrease the input current distortion and improve the power factor. Selection principles of series diode are given. Experimental results verify the correctness and the feasibility of the theoretical analysis.
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