| 开关电源EMI滤波器设计 |
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| 引用本文： | 冯艳斌,张勋,张丽.开关电源EMI滤波器设计[J].电子科技,2010,23(6):67-71. |
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| 作者姓名： | 冯艳斌 张勋 张丽 |
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| 作者单位： | (1.西安电子科技大学 电子工程学院,陕西 西安 710071;2.河北省清河县电力局 输变电工区,河北 邢台 054800） |
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| 摘 要： | 分析了一种典型的开关电源电路,利用Pspice软件对其传导电磁干扰进行仿真研究,以TDK公司提供的元器件模型,提出了一种二阶无源EMI滤波器,完全消除了电路输出信号中的尖峰干扰,抑制了开关电源电路中的共模、差模噪声。同时,研究源和负载理想、非理想阻抗特性对滤波器插入损耗的影响,具有一定的意义。
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| 关 键 词： | 开关电源 寄生参数 尖峰干扰 TDK |
Design of the EMI Filter for Switched Mode Power Supplies |
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| Feng Yanbin,Zhang Xun,Zhang Li.Design of the EMI Filter for Switched Mode Power Supplies[J].Electronic Science and Technology,2010,23(6):67-71. |
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| Authors: | Feng Yanbin Zhang Xun Zhang Li |
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| Affiliation: | (1.School of Electronic Engineering,Xidian University,Xi'an 710071,China;
2.Transmission Woek Area,Hebei Province Electeic Power Bureau,Xingtai 054800,China) |
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| Abstract: | This paper analyzes a typical switched mode power supplies circuit.With the help of Pspice software,the conducted EMI is simulated.A two stage passive EMI filter based on the component of the TDK mode is proposed which eliminates almost all spike interference of the output signal and has a good suppression of CM and DM noise.The insertion loss of the filter is studied in case of ideal impedance,which is of some practical value. |
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| Keywords: | TDK |
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