高防护电表中RS-485芯片的损伤与对策分析  

Analysis of RS-485 Chip Damage and Response Strategies in High Protection SmartMeters

作　　者：唐振宁 刘星 张晓东 TANG Zhenning;LIU Xing;ZHANG Xiaodong(Shanghai Belling Corp.,Ltd.,Shanghai 200233,China;Jiangyin Changyi Corp.,Ltd.,Jiangsu 214432,China)

机构地区：[1]上海贝岭股份有限公司,上海200233 [2]江阴长仪集团有限公司,江苏214432

出　　处：《电子技术（上海）》2024年第8期5-6,共2页Electronic Technology

摘　　要：阐述高防护智能电表中RS-485芯片易出现损伤的原因,提出通过内置TVS管的方法对现有RS-485芯片进行可靠性提升。改进的RS-485芯片在满足需求的同时,具有抗干扰能力和卓越的性能。This paper describes the reasons why RS-485 chips in high protection smart meters are prone to damage,and proposes to improve the reliability of existing RS-485 chips by incorporating TVS tubes.Its improved RS-485 chip has the characteristics of anti-interference ability and excellent performance while meeting the requirements.

关 键 词：电路设计 RS-485芯片 瞬态电压抑制二极管 静电释放 

分 类 号：TN402[电子电信—微电子学与固体电子学]