基于TVS管的机载电子设备闪电防护设计  

Lightning Protection Design for Airborne Electronic Equipment Based on TVS Devices

作　　者：杨启帆 张道泽 朱恩亮 马晓晨 YANG Qi-fan;ZHANG Dao-ze;ZHU En-liang;MA Xiao-chen(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710068,China;College of Computer Science and Technology,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710068 [2]浙江大学计算机科学与技术学院,浙江杭州310058

出　　处：《航空计算技术》2020年第6期96-100,共5页Aeronautical Computing Technique

基　　金：国家重点科研项目资助(MJ-2014-S-37)。

摘　　要：随着机载电子设备复杂度提升、内部固有屏蔽减少,电源线和信号线的闪电防护将会成为未来航空机载电子产品的强制要求。因此TVS管也得到快速发展,使设备在敏感的闪电环境中获得安全的性能。介绍了RTCA/DO-160G第22节的内容,分析了TVS管的基础特性;以ARINC429接口为例,详细分析了TVS管的选型方法;提出了闪电防护设计上的建议。该方法已经通过DO-160G试验验证,TVS管工作良好,可以用于相同类型其他接口电路的闪电防护设计。With increasing complexity of airborne electronic equipment and less inherent shielding,power lines and increasing numbers of signal lines requiring protection will become mandatory for future reliability of airborne electronic equipment.Transient voltage suppressor(TVS)devices are rapidly evolving to maintain safe performance in this more vulnerable lightning environment.This paper first introduces the section 22 of RTCA/DO-160G,and then analyzes the basic principle of TVS.Secondly,based on the ARINC429 interface,the specific method of TVS selection is given.Finally,some suggestions on the lightning protection design are put forward.The selection and design of TVS is verified by experiments of DO-160G that the method works well and can be used for lighting protection of the same type of interface circuit.

关 键 词：机载电子设备 闪电防护 TVS 闪电间接效应 RTCA/DO-160G 

分 类 号：V243[航空宇航科学与技术—飞行器设计]