電源適配器的(de)(de)干擾(rao)是很多人都(dou)頭(tou)疼的(de)(de)問題，那(nei)么電(dian)源適(shi)配器的(de)(de)干擾(rao)如(ru)何(he)解決?今(jin)天我們一起(qi)來看(kan)一下(xia)!

　　根據電(dian)磁兼容(rong)性產生的要素，解(jie)決電(dian)源適配器的電(dian)磁兼容(rong)性可從三個方面入手：

　　1、減小干擾源產生的干擾信號

　　2、切斷干擾信號的傳播途徑

　　3、增強受干擾體的抗干擾能力

　　對(dui)電(dian)(dian)(dian)(dian)源(yuan)(yuan)適配器產生(sheng)的對(dui)外干擾(rao)(rao)，如電(dian)(dian)(dian)(dian)源(yuan)(yuan)線諧波電(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)源(yuan)(yuan)線傳導(dao)干擾(rao)(rao)、電(dian)(dian)(dian)(dian)磁(ci)場輻射干擾(rao)(rao)等，只能(neng)用(yong)(yong)減(jian)小(xiao)干擾(rao)(rao)的方(fang)法(fa)來(lai)解(jie)決。一方(fang)面，可(ke)以增強(qiang)輸入/輸出濾波電(dian)(dian)(dian)(dian)路(lu)的設計(ji)，改善有源(yuan)(yuan)功率(lv)因數補(bu)償(APFC)電(dian)(dian)(dian)(dian)路(lu)的性(xing)能(neng)，減(jian)小(xiao)開(kai)關管及整流(liu)(liu)、續流(liu)(liu)二極管的電(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)流(liu)(liu)變化率(lv)，采用(yong)(yong)各種(zhong)軟開(kai)關電(dian)(dian)(dian)(dian)路(lu)拓補(bu)結構及控制方(fang)式等;另一方(fang)面，加強(qiang)機殼(ke)的屏蔽(bi)效果，改善機殼(ke)的縫隙泄露，并進行良好(hao)的接地處理。

　　對(dui)(dui)外(wai)部的(de)(de)(de)(de)抗(kang)干(gan)擾能力，如浪涌、雷(lei)擊，應優化交流(liu)輸(shu)入(ru)及(ji)(ji)直(zhi)流(liu)輸(shu)出端(duan)口的(de)(de)(de)(de)防雷(lei)能力。對(dui)(dui)雷(lei)擊可采用(yong)氧化鋅壓敏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)與(yu)氣體放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管(guan)等的(de)(de)(de)(de)組合方法來解決。對(dui)(dui)于靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，采用(yong)TVS管(guan)及(ji)(ji)相應的(de)(de)(de)(de)接地(di)保護，加大(da)(da)小信(xin)號(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)與(yu)機(ji)殼等的(de)(de)(de)(de)距離，或選用(yong)具有抗(kang)靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)干(gan)擾的(de)(de)(de)(de)器(qi)件來解決。減(jian)(jian)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源適配器(qi)的(de)(de)(de)(de)內部干(gan)擾，應從以(yi)下(xia)幾個方面入(ru)手(shou)：注(zhu)意數字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)與(yu)模(mo)擬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)單點(dian)接地(di)，大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)與(yu)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)特(te)別是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓取樣電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)單點(dian)接地(di)，以(yi)減(jian)(jian)小共阻(zu)干(gan)擾、減(jian)(jian)小地(di)環(huan)的(de)(de)(de)(de)影響;布線(xian)時(shi)注(zhu)意相鄰線(xian)間的(de)(de)(de)(de)間距及(ji)(ji)信(xin)號(hao)性(xing)質，避(bi)免(mian)產生(sheng)串(chuan)擾;減(jian)(jian)小地(di)線(xian)阻(zu)抗(kang);減(jian)(jian)小高(gao)壓大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)路(lu)特(te)別是變壓器(qi)原邊與(yu)開(kai)關管(guan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)所(suo)包圍的(de)(de)(de)(de)面積(ji);減(jian)(jian)小輸(shu)出整流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)及(ji)(ji)續流(liu)二極管(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)與(yu)直(zhi)流(liu)濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)所(suo)包圍的(de)(de)(de)(de)面積(ji);減(jian)(jian)小變壓器(qi)的(de)(de)(de)(de)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感、濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容的(de)(de)(de)(de)分布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容;采用(yong)諧(xie)振頻率高(gao)的(de)(de)(de)(de)濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)等。

　　在傳(chuan)播途(tu)徑方(fang)面(mian)，適(shi)當的(de)增加高(gao)抗干擾能力的(de)TUS及高(gao)頻電(dian)(dian)容、鐵氧(yang)體磁珠等元器(qi)(qi)件(jian)，以提高(gao)小(xiao)信(xin)號(hao)電(dian)(dian)路的(de)抗干擾能力;與(yu)機(ji)殼距離較近的(de)小(xiao)信(xin)號(hao)電(dian)(dian)路，應加適(shi)當的(de)絕緣耐壓(ya)處(chu)理等;功率器(qi)(qi)件(jian)的(de)散熱器(qi)(qi)、主變壓(ya)器(qi)(qi)的(de)電(dian)(dian)磁屏蔽層要適(shi)當接(jie)地(di);各控制單(dan)元間的(de)大(da)面(mian)積接(jie)地(di)用接(jie)地(di)板屏蔽;在整(zheng)流器(qi)(qi)的(de)機(ji)架(jia)上，要考慮各整(zheng)流器(qi)(qi)間電(dian)(dian)磁耦合、整(zheng)機(ji)地(di)線布置等，以改善(shan)電(dian)(dian)源適(shi)配器(qi)(qi)內部工作的(de)穩定性。

　　對于電源適配器(qi)的干擾如(ru)何解決(jue)(jue)想必大家已經簡單了(le)解了(le)，希(xi)望(wang)大家遇到(dao)這個(ge)問題的時候(hou)可以順利解決(jue)(jue)!