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Study of Anti-interference Application in Embedded Control System

Author: WanZhenLei
Tutor: WangQinRuo
School: Guangdong University of Technology
Course: Control Theory and Control Engineering
Keywords: EMC Electromagnetic interference Power filtering Band-stop filter Electrical fast transient burst immunity (EFT / B) test
CLC: TN911.4
Type: Master's thesis
Year: 2011
Downloads: 73
Quote: 1
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Abstract


Electromagnetic interference (EMI) in the industrial environment has the complexity , diversity and non- inhibitory characteristics , it can be through the I / O port coupled into the system and cause system runaway programs or system malfunction . Solve electromagnetic interference of the system or equipment problems modern electronic engineering to design products , key issues that must be considered . This article is a PCB board anti-jamming technology applications in high-speed textile machine control system , the thesis work focused on the anti-jamming design of the system control panel , focuses on the anti-jamming design and testing of anti-interference filter circuit and the interface board . The thesis includes the following aspects : first to introduce the concept , the development of the history and significance of electromagnetic compatibility (EMC) , the establishment of a high-frequency prediction model of sensitive components and transmission lines , and a deeper understanding of the transmission of electromagnetic interference coupling . The same time , the analysis of the commonly used the EMC design technology , including bypass and decoupling , filtering, shielding , grounding techniques , PCB board layout design followed typical insertion loss of the filter circuit and power supply filter circuit model . And two design examples elaborate on the power supply filter circuit and signal filtering circuit design steps . Finally, there is the anti-jamming design of embedded control system PCB board with immunity test . Focus on the interface board input standard industrial immunity test according to the test results , the analysis of interference possible transmission pathways , take the appropriate anti-jamming measures to solve the interference of PCB board , embedded control systems by industrial four level EFT / B immunity test .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory > Noise and interference
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