Noise Mitigation Capability Comparison: Power Bus Isolation vs. Power Plane Segmentation
學年 98
學期 2
出版（發表）日期 2010-06-01
作品名稱 Noise Mitigation Capability Comparison: Power Bus Isolation vs. Power Plane Segmentation
作品名稱（其他語言）
著者 Chou, Yun-Hsih; Jeng, Ming-Jer; Tsai, Ming-Chang; Lee, Yang-Han; Jan, Yih-Guang
單位 淡江大學電機工程學系
出版者 臺北縣：淡江大學
著錄名稱、卷期、頁數 淡江理工學刊=Tamkang Journal of Science and Engineering 13(2)，頁181-188
摘要 In the printed circuit board design it usually implements two methods to solve the power-bus noise interference problem. One is by adding decoupling capacitor and the other method is to adopt power bus isolation or power plane segmentation. Large isolation gap distance gets better isolation impedance and it consequently improves the high frequency power-bus noise elimination capability. Meanwhile another important factor needed to consider is the segmentation pattern, the implementation cost will determine the segmentation size of the isolation area. Unavoidable interference exists in the digital and analog circuits that using the common power source. In this paper we will search and discuss several commonly implemented isolation techniques and study how to reduce the interference effect. By using isolated power island will apparently reduce board's impedance and the location of the power island will affect the board's resonant structure. The bridge width of the connecting bridge appreciably affects on the first resonant location, the segmentation gap size affects the coupling amount. The larger the gap size the smaller the gap capacitance will be and consequently larger gap size will improve the noise isolation capability; different gap shapes will affect the board's resonant structure, better board's resonant structure will improve resonant probabilities and consequently increase the board impedance.
關鍵字
語言 en
ISSN 1560-6686
期刊性質 國內
收錄於 EI
產學合作
通訊作者 Chou, Yun-Hsih
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,紙本
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