开关电源PCB板的EMI抑制和抗干扰设计  

EMI Inhibition and Anti-Interference Design Study of Switching Power Supply PCB Board

作　　者：伍颖 唐毓豪 WU Ying;TANG Yuhao(The 34th Research Institute of China Electronics Technology Group Corporation,Guilin 541000,China)

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541000

出　　处：《通信电源技术》2023年第17期4-7,共4页Telecom Power Technology

摘　　要：开关电源常见于各种通信、控制等电子设备,广泛应用于军事、工业、医疗等领域,具有高效、轻巧以及可靠的特点。随着电子技术的快速发展,开关电源也在不断发展,行业对于电源性能的要求也越来越高,开关电源趋于高频化,但同时会产生一系列的电磁干扰(Electromagnetic Interference,EMI)问题。这些干扰可能对设备的正常运行、周围电子设备的性能稳定性以及电磁兼容性产生不利影响。基于此,简单讨论开关电源印制电路板(Printed Circuit Board,PCB)的EMI抑制和抗干扰设计意义,深入探讨设计要点,以供参考。Switch power supply is common in a variety of communication,control and other electronic equipment,widely used in military,industrial,medical and other fields.Switch power supply has the characteristics of high efficiency,light and reliable,with the rapid development of electronic technology,switching power supply is also constantly developing,the industry for the power performance requirements are becoming higher and higher,switching power supply more and more high frequency,but also will produce a series of Electromagnetic Interference(EMI)problems.These disturbances may adversely affect the normal operation of the equipment,the performance stability of the surrounding electronic equipment,and the electromagnetic compatibility.Based on this,this paper briefly discusses the design significance of EMI suppression and anti-interference of Printed Circuit Board(PCB)board of switching power supply,and discusses the design points for reference.

关 键 词：开关电源 电磁干扰(EMI) 印制电路板(PCB) 辐射 抗干扰设计 

分 类 号：TN713[电子电信—电路与系统]