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
Key words
-circuit design/RS-485 chip/transient voltage suppression diode/electrostatic discharge
维普
万方数据