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Analysis of switching frequency modulated synchronous buck converters

机译:开关频率调制同步降压转换器的分析

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This paper is devoted to the analysis of the effect of switching frequency modulation (SFM) used for EMI reduction on the synchronous buck converters (SBC) parameters, such us output voltage ripples (OVR), peak power component currents, etc. In the paper SBC are studied analytically, using computer simulations and experimentally. The most careful attention is paid on the peak-to-peak OVR because it is the most problematic parameter due to the use of SFM. Several useful guidelines for the choice of SFM parameters and slight modification of the control circuit to get peak-to-peak OVR as small as possible are also proposed. The results presented in the paper can simplify the design of SBC with SFM.
机译:本文致力于分析用于降低EMI的开关频率调制(SFM)对同步降压转换器(SBC)参数的影响,例如输出电压纹波(OVR),峰值功率分量电流等。使用计算机模拟和实验方法对SBC进行分析研究。由于使用SFM,这是最成问题的参数,因此对峰峰值OVR最为注意。还提出了一些有关选择SFM参数和对控制电路进行细微修改以使峰峰值OVR尽可能小的有用指南。本文提出的结果可以简化具有SFM的SBC的设计。

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