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频率扰动法降低开关电源电磁干扰的试验研究 被引量：1

Investigation on Reduce EMI Emission Reduction of Switching Power Supply by Dithering the Switching Frequency
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摘要 采用一种开关电源控制方法——开关频率扰动方法来降低开关电源电磁干扰进行了试验研究。试验结果表明,采用该方法后,开关电源电磁干扰幅值得到明显降低,最大降幅超过8dBμV,平均降幅5dBμV。试验研究结果证实,开关频率扰动方法能够有效降低开关电源的电磁干扰水平。 A control method of switching power supply,dithering the switching frequency,is employed to reduce EMI emission.As a result,the emission of switching power supply is reduced significantly,over 8 dBμV in maximum and 5 dBμV in average.It＇s confirmed by experiment that this method is an effective way to reduce the EMI emission.
作者 谢晋雄 李军
机构地区 深圳出入境检验检疫局
出处 《电力电子技术》 CSCD 北大核心 2006年第5期77-78,106,共3页 Power Electronics
基金 AQSIQ基金资助项目(2005IK107)~~
关键词 电磁兼容性 干扰 抑制/开关电源 electromagnetic compatibility interfernce suppression / switching power supply
分类号 TN86 [电子电信—信息与通信工程] TM71 [电气工程—电力系统及自动化]
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参考文献3

二级参考文献24

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共引文献23

同被引文献3

  • 1王斌,王颢雄.随机调制技术与频率抖动技术抑制传导EMI的比较[J].三峡大学学报（自然科学版）,2005,27(4):314-317. 被引量：5
  • 2F Lin,Dan Y Chen.Reduction of Power Supply EMI Emission by Switching Frequency Modulation [J].IEEE Trans. on Power Electronics, 1994,9(1):132-137.
  • 3Li Cai,Zhihui Yang,Wei Chen.EMI Reduction of Switching Power Supply by Frequency Jitter [A].IEEE Industry Application Confrence ' 06[C].2006, (2) : 2790-2793.

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电力电子技术
2006年 第5期

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