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High-Speed Circuit Power Integrity Design Based on Impedance Characteristic Analysis

  • Guangming ZhangEmail author
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 994)

Abstract

Power integrity (referred to as PI) issues have become increasingly important in today’s high-speed circuit designs, at the same time, the complexity of power integrity analysis has increased. Based on the two-port network model, paper establishes the small signal model of the power system and the transmission matrix model of the PCB power supply ground plane system, innovatively combines power supply design and PCB design to realize the impedance control of the power distribution system and improve the power integrity of the circuit. Taking the design of a certain type of network card as an example, based on the impedance model, through simulation, the target impedance is controlled in different frequency bands. The method is verified by measuring the dynamic characteristics and noise of the chip power supply.

Keywords

Power integrity Small signal model Transmission matrix Impedance control 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Jiangsu Automation Research InstituteLianyungangChina

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