Investigate on EMI technology for notebook computer PCB

Autor: Ching-Ming Cheng, 鄭慶明
Rok vydání: 2011
Druh dokumentu: 學位論文 ; thesis
Popis: 99
It is obvious that the trend of the notebook in modern life is light, thin and small. With the rise time of PCB circuit signal is getting less and less, the development of high speed transmission and high density package had become a trend. Besides, for that the space in the notebook is too narrow, the electrical components are getting too close among each so that the magnetic fields are coupling among each other. As a result, the EMI is too unstable to not only meet the standard of the international regulation but influence the quality of the notebook. That is, the EMI issue is becoming more and more serious. This study aims to generalize the EMI strategy of 3H-Rule、20H-Rule and Snubber to make the notebook achieves the standard of the international regulation by using an real EMI test on the PCB of the notebook with Intel or AMD platform; thus to enhance the quality of the notebook by decreasing the source of interference of EMI during the PCB design stage to avoid using too much extra negative components and mechanical components which interfere the Electromagnetic interference.
Databáze: Networked Digital Library of Theses & Dissertations