嵌入式应用系统中高速PCB设计技术的研究及实现

发布时间：2018-06-27 06:44

本文选题：高速PCB + 信号完整性　；参考：《计算机测量与控制》2016年06期

【摘要】：为了能够消除高速PCB技术中信号完整性的问题,需要在高速PCB设计过程中解决时序、噪声、电磁干扰等关键问题;通过对嵌入式RTU的高速PCB设计过程中出现的串扰、电磁干扰、振铃和电源完整性等信号问题的研究,提出削弱或消除以上噪声的方法;用Altium Designer、PADS软件绘制电路原理图和PCB,借助Hyper Lynx和ADS仿真软件进行前端和后端可靠性验证,根据仿真结果确定元器件和接插件的布局以及走线规则,最后通过对完成布线的PCB进行信号完整性验证;设计的嵌入式RTU电路板通过电磁兼容测试,表明该方法能够有效抑制噪声,增强高速数字电路设计的稳定性,提高产品设计的成功率,对从事相关工作的人员有很重要的参考价值,在智能设备的升级替换和推进物联网的建设方面有重要的借鉴作用。
[Abstract]:In order to eliminate the problem of signal integrity in high speed PCB technology, it is necessary to solve the key problems of timing, noise and electromagnetic interference during the design of high speed PCB. Through the study of the signal problems such as crosstalk, electromagnetic interference, ringing and power supply integrity in the high-speed PCB design of embedded RTU, this paper proposes to weaken or eliminate the above noise. The method of sound; using Altium Designer, PADS software to draw circuit schematic and PCB, using Hyper Lynx and ADS simulation software to verify the front and back end reliability. According to the simulation results, the layout and the line rule of the components and connectors are determined. Finally, the integrity of the signal is verified by the PCB that completes the wiring; the designed embedded RTU electricity is designed. Through EMC test, the road plate shows that the method can effectively suppress noise, enhance the stability of high-speed digital circuit design and improve the success rate of product design. It has important reference value for the personnel engaged in the related work, and has important reference for the upgrading and replacement of intelligent equipment and the construction of the Internet of things.
【作者单位】：中国石油大学(北京)地球物理与信息工程学院;
【基金】：国家发改委下一代互联网技术在智慧油田的应用示范项目(CNGI-12-03-043)
【分类号】：TN402

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