浅谈印制电路板的电磁兼容设计

印制电路板（PCB）是电子产品中电子元件的支撑件，它提供电子元件之间的电气连接，是各种电子设备最基本的组成部分，它的性能直接关系到电子设备质量的好坏。随着微电子技术的迅速发展，各种电子产置经常在一起工作，它们之间的干扰越来越严重。同时，PCB的密度越来越高，PCB设计的好坏对电路的干扰及抗干扰能力影响很大。因此要使电子电路获得最佳性能，除了元器件的选择和电路设计之外，良好的元件布局和导线布设在电磁兼容性中也是一个非常重要的因素。文章围绕印制电路板的电磁兼容设计展开论述，介绍了元件布局、布线、电源设计、接地设计等方面的设计要点，为制作一个电磁兼容设计艮好的印制板奠定基础。

About the EMC Design of Printed Circuit Board

Printed Circuit Board （PCB） is the electronic products in support of pieces of electronic components, electronic components which provide electrical connections between, a variety of electronic equipment is the most basic component of its performance is directly related to the electronic equipment of good quality Bad. With the rapid development of microelectronic technology, a variety of electronic products often work together, among them more and more serious interference. At the same time, PCB＇s getting higher and higher density, PCB design is good or bad on the circuit and anti-interference ability to influence. As a result, electronic circuits to get the best performance, in addition to the choice of components and circuit design, layout and components of a good conductor laid in the electromagnetic compatibility is also a very important factor. This article focus on the printed circuit board design to start on electromagnetic compatibility, introduced the layout of the components, wiring, power supply design, grounding design elements designed for the production of electromagnetic compatibility of a well-designed lay the foundation for the PCB.