| Modem engineers must take into account the electromagnetic compatibility of theelectric equipments The simulating of EMC can solve the EMC problem before theproducts being made Which may save a mass of time and money Thus, in the printedcircuit board design stage of electromagnetic compatibility (EMC) design is of greatsignificance.This paper introduces the basic theory of electromagnetic compatibility, set outthe printed circuit board electromagnetic compatibility problems, printed circuit boardgenerated EMI interference causes and EMC design of printed circuit boards.Application of C + + software programming technology, based on Mentor Graphicscompany's PCB design software, has developed a set of PCB EMC prediction analysissoftware. The software has been successfully applied to a spaceflight Institute of EMCanalysis of high-speed circuit boards achieved the expecte results. |
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