| 开关电源纹波和噪声的抑制 |
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| 引用本文： | 董玉林,王晓明,刘瑶,周青山.开关电源纹波和噪声的抑制[J].辽宁工学院学报,2008(5):302-304. |
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| 作者姓名： | 董玉林 王晓明 刘瑶 周青山 |
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| 作者单位： | 辽宁工业大学机械工程与自动化学院; |
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| 摘 要： | 分析了开关电源纹波和噪声的组成成分及哪些成分需要抑制。通过铁氧体磁珠抑制基频纹波和高频噪声的等效电路,得出结论为当降压型变换器与其他电路拥有共同的输入电压时,降压型变换器的输入噪声完全可以干扰其他装置;简单滤波方式可以用来降低输入噪声,改善电路的特性。最后给出了计算公式及结果。
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| 关 键 词： | 开关电源 纹波和噪声抑制 铁氧体磁珠 |
Ripple and Noise Attenuates with SMPS |
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| DONG Yu-lin,WANG Xiao-ming,LIU Yao,ZHOU Qing-shan.Ripple and Noise Attenuates with SMPS[J].Journal of Liaoning Institute of Technology(Natural Science Edition),2008(5):302-304. |
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| Authors: | DONG Yu-lin WANG Xiao-ming LIU Yao ZHOU Qing-shan |
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| Affiliation: | Mechanical Engineering & Automation College;Liaoning University of Technology;Jinzhou 121001;China |
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| Abstract: | The switching power supply ripple and noise components,and those noise components which requires filtering were analyzed.A conclusion was drawn from the equivalent simulation circuit of rejecting the switching frequency ripple and high frequency noise with ferrite bead when buck converter and other circuit supplied with the same voltage,the input noise of the buck converter disturted other devices entirely.Simple filtering patterns can be used to decrease input noise and improve circuit characteristics.Fina... |
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| Keywords: | SMPS ripple and noise attenuation ferrite bead |
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