摘要
针对高速电路中电源地噪声问题,推导出矩形电源地平面的目标阻抗公式,得到电压场的分布规律,进而准确确定全局电容的加载位置,为降低PCB的电源地噪声提供理论依据.
Aiming at the noise problems from the power supply in high speed circuit, a target impedance formula for rectangular power ground plane is deduced in this paper. The voltage distribution is obtained to accurately determine the global capacitance loading position, references for reducing the noise for PCB.
出处
《湖北文理学院学报》
2015年第5期5-8,共4页
Journal of Hubei University of Arts and Science
基金
低纬光电材料与器件湖北省重点实验室开放课题基金资助课题(HLOM142010)
湖北文理学院博士科研基金项目(2013B006)
关键词
电源地噪声
目标阻抗
电压场
边界条件
Power ground plane noise
Target impedance
Voltage field
Boundary conditon
