電(dian)(dian)磁(ci)(ci)兼容(rong)性(xing)是指電(dian)(dian)子(zi)設備(bei)在(zai)各種電(dian)(dian)磁(ci)(ci)環(huan)境中仍能(neng)(neng)夠協調、有效地進行工作的能(neng)(neng)力。目(mu)的是使電(dian)(dian)子(zi)設備(bei)既能(neng)(neng)抑(yi)制各種外(wai)來的干(gan)擾，使電(dian)(dian)子(zi)設備(bei)在(zai)特定的電(dian)(dian)磁(ci)(ci)環(huan)境中能(neng)(neng)夠正常工作，同時又能(neng)(neng)減少電(dian)(dian)子(zi)設備(bei)本(ben)身對(dui)其(qi)它電(dian)(dian)子(zi)設備(bei)的電(dian)(dian)磁(ci)(ci)干(gan)擾。

1、選擇合理的(de)導(dao)線(xian)寬度由(you)于瞬變電流在PCB電路板印制(zhi)線(xian)條上(shang)所(suo)產生(sheng)的(de)沖擊(ji)干擾主要是由(you)印制(zhi)導(dao)線(xian)的(de)電感成(cheng)(cheng)分造成(cheng)(cheng)的(de)，因此應(ying)盡量減(jian)小印制(zhi)導(dao)線(xian)的(de)電感量。

2、采用(yong)(yong)正確(que)的布線(xian)(xian)(xian)策略采用(yong)(yong)平等走線(xian)(xian)(xian)可以(yi)減少導(dao)線(xian)(xian)(xian)電(dian)感(gan)，但導(dao)線(xian)(xian)(xian)之間的互(hu)感(gan)和(he)分布電(dian)容增(zeng)加(jia)，如果布局(ju)允許(xu)，***采用(yong)(yong)井字(zi)形網(wang)狀布線(xian)(xian)(xian)結構，具體(ti)做法(fa)是(shi)印制(zhi)板(ban)的一(yi)面(mian)橫向(xiang)布線(xian)(xian)(xian)，另(ling)一(yi)面(mian)縱(zong)向(xiang)布線(xian)(xian)(xian)，然后在交叉孔(kong)處用(yong)(yong)金屬化(hua)孔(kong)相(xiang)連。

3、為了(le)抑(yi)(yi)制(zhi)PCB電路板導(dao)線(xian)(xian)(xian)之(zhi)間的串擾，在設計布線(xian)(xian)(xian)時應(ying)盡(jin)量(liang)避免長距(ju)離(li)的平等走線(xian)(xian)(xian)，盡(jin)可(ke)能拉開線(xian)(xian)(xian)與線(xian)(xian)(xian)之(zhi)間的距(ju)離(li)，信號線(xian)(xian)(xian)與地線(xian)(xian)(xian)及(ji)電源線(xian)(xian)(xian)盡(jin)可(ke)能不(bu)交叉(cha)。在一些對干擾十分敏(min)感的信號線(xian)(xian)(xian)之(zhi)間設置(zhi)一根接地的印制(zhi)線(xian)(xian)(xian)，可(ke)以有(you)效地抑(yi)(yi)制(zhi)串擾。