论文部分内容阅读
PCB板布线,其实是一项系统性较强的工作,并且有多方面的综合性比较强的要求,不光是PCB的布线美观,结构紧凑,最为关键的一点还是信号的抗干扰处理。在高频信号多的情况下,容易产生很多的电容耦合;在工作模块多的情况下,容易产生电感耦合;并且如果有很多地分块的话,还要考虑共模干扰,以及串模干扰等等。还有其他的一些,如外部的电源干扰、雷击、浪涌等等,需要加一些特殊的保护器件,这些都是在原理设计和布线规划时就需要仔细
PCB board wiring, in fact, is a systematic work, and there are many aspects of the more comprehensive requirements, not only beautiful PCB layout, compact structure, the most crucial point is the anti-jamming signal processing. In the case of a large number of high-frequency signals, a large number of capacitive couplings tend to occur; inductive coupling tends to occur in the case of a large number of operating modules; and if there are many sub-blocks, common mode interference, serial mode interference, etc. Wait. Others, such as external power interference, lightning strikes, surges, etc., require some special protection devices, all of which require careful planning and layout planning