EMC design of automobile CAN bus

This paper presents the theory of new approaches of electromagnetic compatibility. It analyzes the phenomenon of electromagnetic interference in the electronic equipments of the automobiles and its harmful impact. It narrates the design mentality, the using standard and the technological route of electromagnetic compatibility on automobiles. It also makes the EMC design on the PCB part of the CAN system of the automobiles. At the same time, it put forwards the new filter circuit and connecting methods which solved the interfering problems of the CAN system on automobiles and this system makes a good effect.