| 基于相位校正的PT控制CCM Buck变换器研究 |
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| 引用本文： | 苗军峰.基于相位校正的PT控制CCM Buck变换器研究[J].筑路机械与施工机械化,2012,29(9):75-79. |
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| 作者姓名： | 苗军峰 |
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| 作者单位： | 四川腾中重工机械有限公司,四川成都,610041 |
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| 摘 要： | 以CCM Buck变换器为例,分析PT控制CCM Buck变换器的控制特性,以及输出电容ESR较小时,低频振荡现象的产生机理,输出电压与电感电流之间的相位关系,并据此得到了相位校正方案.仿真和试验结果验证了PT控制CCM Buck变换器相位校正方案的正确性和可行性.
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| 关 键 词： | PT控制 变换器 低频振荡 相位校正 |
Research on Pulse-Train Controlled CCM Buck Converter Based on Phase Ad- justment |
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| MIAO Jun-feng.Research on Pulse-Train Controlled CCM Buck Converter Based on Phase Ad- justment[J].Road Machinery & Construction Mechanization,2012,29(9):75-79. |
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| Authors: | MIAO Jun-feng |
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| Institution: | MIAO Jun-feng Sichuan Tengzhong Heavy Industrial Machinery Co. Ltd., Chengdu 610041, Sichuan, China |
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| Abstract: | Taking the CCM Buck converter as an example, the control characteristics of CCM Buck controlled by Pulse-Train was analyzed, as well as the mechanism of low frequency oscillation which happens when the ESR of output capacitor is small; based on the phase relationship between the output voltage and inductive current, a scheme for phase adjustment was obtained. The results of simulation and test prove that the adjustment scheme is correct and feasible. |
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| Keywords: | PT controlled converter low frequency oscillation phase adjustment |
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