电子器件2012，Vol.35Issue(4)：417-420,4.DOI:10.3969/j.issn.1005-9490.2012.04.011
基于有限元法的高频开关电源PCB电磁兼容设计与仿真
Design and Simulation of EMC for PCB of High-Frequency Switching Power Supply Based on FEM
潘亚培 1吴明赞 1李竹1
作者信息
- 1. 南京理工大学自动化学院,南京210094
- 折叠
摘要
Abstract
In the designing of high-frequency switching power supply,the pass-off of power switching devices at high frequencies will produce strong EMI ( Electro Magnetic Interference) , so inevitably there will be EMC ( Electro Magnetic Compatibility)problems. This article simulates the high-frequency switching power supply PCB generated by automatic routing and by manual routing according to principles of EMC using FEM (Finite Elemente Method) and gets their near-field radiation parameters at the frequency 200 MHz,600 MHz,l GHz. Simulation results shows that the e-lectromagnetic radiation range and values of high-frequency switching power supply PCB ( Printed Circuit Board) generated by automatic routing are large and its electromagnetic interference is strong. After re-optimized routing of the PCB based on principles of EMC, the range and values of the near-field radiation are effectively inhibited and the EMC of PCB board has been improved.关键词
高频开关电源/PCB/近场辐射/电磁兼容Key words
high-frequency switching power supply/PCB/near-field radiation/EMC分类
信息技术与安全科学引用本文复制引用
潘亚培,吴明赞,李竹..基于有限元法的高频开关电源PCB电磁兼容设计与仿真[J].电子器件,2012,35(4):417-420,4.
