高电磁兼容性新型母线排的设计  

Design of a New Bus Bar with Good EMC

作　　者：周建春[1] 李新民[1] 徐国林[1] 李网生[1] 

机构地区：[1]南京电子技术研究所,江苏省南京市210013

出　　处：《电子工程师》2008年第8期38-40,43,共4页Electronic Engineer

摘　　要：提出了一种新型铜板母线排,它能减小开关电源电磁干扰的产生,提高设备电磁兼容性。分析不同形式母线排的电气特性,介绍了双层母线排的优点,给出了双层母线排的设计理论和方法。成功设计了大电流母线排,并将其应用于-30 kV/50 kW大功率高压开关电源,给出了应用新母线排前后的实测波形,对比实验结果表明,新型母线排杂散电感小,有效提高了高压电源的电磁兼容性。This paper presents a new type of copper bus bar, which can reduce EMI of the power supply and improve EMC. Based on analysis of the spurious-inductance of different DC bus, the advantage of double deck DC bus is described, and the design principle and technique is also put forward. Then a new bus is de- signed successfully and applied to HV-power supply of -30 kV/50 kW. The experiment results indicate that the new bus has little spurious-inductance and improves effectively the EMC of HV-power supply .

关 键 词：电磁兼容 直流母线 杂散电感 大功率开关电源 

分 类 号：TN86[电子电信—信息与通信工程]