摘要
舰载平衡串行通信接口采用平衡驱动差分接收电路,增强了抗干扰能力。针对连接平衡串行通信链路中忽略地线连接的情况,从共模电压干扰、辐射电磁干扰两方面分析了不接地的潜在危害;根据工程经验,结合接地需求论证,给出了浮地技术、隔离接口和共模扼流圈设计等在舰载平衡串行通信接口接地中的具体应用,改进了接地系统性能。
Shipborne balanced serial communication interface adopts balanced driving and differential receiving circuit, so its anti-interference ability strengthens. However, ground signal connecting is ignored when forming a balanced serial communication link. This paper analyzes its potential risk of common mode voltage interference and radiation EMI. Furthermore, when reasoning grounding of balanced serial communication interface, we give several measures, such as floating ground, isolated interface and common mode choke designing, to enhance properties of grounding system for Shipborne balanced serial communication interface according to engineering experience.
出处
《舰船科学技术》
北大核心
2007年第3期79-82,共4页
Ship Science and Technology
基金
总装重点实验室基金资助项目(9140C210801060C2101)
关键词
舰载平衡串行通信接口
共模电压干扰
辐射电磁干扰
共模扼流圈设计
接地
shipborne balanced serial communication interface
common mode voltage
interference
radiation EMI
common mode choke designing
grounding
