A Detecting Method on Short Stub of RS-485 Bus

TIAN Wei

Chinese

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A Detecting Method on Short Stub of RS-485 Bus

更新时间：2026-09-04

- A Detecting Method on Short Stub of RS-485 Bus
- Vol. 28, Issue 4, Pages: 176-179(2011)
- 作者机构：
  
  西安微电子技术研究所,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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田卫. RS-485总线分支线短路故障检测技术[J]. 微电子学与计算机, 2011, 28(4): 176-179.

TIAN Wei. A Detecting Method on Short Stub of RS-485 Bus[J]. 2011, 28(4): 176-179.
田卫. RS-485总线分支线短路故障检测技术[J]. 微电子学与计算机, 2011, 28(4): 176-179. DOI：

TIAN Wei. A Detecting Method on Short Stub of RS-485 Bus[J]. 2011, 28(4): 176-179. DOI：

摘要

文中讨论了RS-485总线的几种拓扑形式

分析了总线短路的几种故障模式.提出了一种基于电流检测的短路故障检测技术

并说明了它的工作原理

最后给出了实验结果.该技术可以有效提高基于RS-485物理层的串行高速总线的可靠性.

Abstract

This paper discussed the several common topologic structure of the RS-485 Bus

and analyzed its short mode of the stub. A new short-circuit detection technology based on current detection techniques has been proposed to improve the RS-485 bus reliability

the working scheme also has been described. A real test result has been given. The method can effectively improve the reliability of the high speed serial bus based on RS-485 physical layer.

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