浪涌防护电路方案的设计与验证  

Design and Verification of Surge Protection Circuit Scheme

作　　者：张本军[1] 徐加征[1] Zhang Benjun;Xu Jiazheng

机构地区：[1]中兴通讯南京研发中心

出　　处：《安全与电磁兼容》2020年第6期27-28,38,共3页Safety & EMC

摘　　要：由于设备的浪涌防护电路既需要通流大的粗防护,又需要精确防护,因此提出了两种基于压敏电阻和TVS浪涌防护电路的设计方案。对这两种方案进行测试、分析和实验验证,说明了防护器件之间的连接不能仅采用简单的并联方式,需要在其中增加退耦器件,以实现浪涌防护器件组合防护。Two design schemes of surge protection circuit based on varistor and TVS are proposed.Because the surge protection circuit of the equipment needs both rough protection and precise protection.The test,analysis and experimental verification of the two schemes show that the connection between the protective devices can not only adopt the simple parallel mode,but also need to add decoupling devices to realize the combined protection of surge protective devices.

关 键 词：浪涌防护电路 压敏电阻 TVS 方案设计 退耦 

分 类 号：TM862[电气工程—高电压与绝缘技术]