矿用产品LonWorks总线接口保护技术  

Protection Technology of LonWorks Bus Interface of Mine-used Products

作　　者：孟庆勇[1] 

机构地区：[1]煤炭科学研究总院安全装备技术研究分院,北京100013

出　　处：《工矿自动化》2011年第8期88-90,共3页Journal Of Mine Automation

基　　金："十一五"国家科技支撑计划项目(2009BAK54B04)

摘　　要：针对矿用产品LonWorks总线接口在实际应用中容易损坏的问题,分析了导致损毁的主要原因是收发信号不隔离、浪涌脉冲和长距离传输等因素,给出了3种由陶瓷气体放电管、自恢复保险丝、瞬态抑制二极管、静电放电保护器件组成的LonWorks总线接口保护电路。测试结果表明,该3种保护电路均满足有关标准的浪涌抗扰度测试要求,应用效果良好。For the problem of frequent damage in application of LonWorks bus interface of mine-used products,main causes were analyzed including unisolating sending and receiving signals,electrical surge and long-distance transmission.Three protection circuits were gave which are composed of gas discharge tube,polymeric positive temperature coefficent,transient voltage suppressor and electro-static discharge protector.The test result showed that the three circuits can achieve corresponding standards about anti-interference testing of electrical surge and have good effect in use.

关 键 词：矿用产品 LONWORKS总线 接口保护 浪涌脉冲 陶瓷气体放电管 自恢复保险丝 瞬态抑制二极管 静电放电 

分 类 号：TN86[电子电信—信息与通信工程]