電源適配器的干(gan)擾(rao)是很多(duo)人都頭(tou)疼(teng)的問題，那么電源適(shi)配器的干(gan)擾(rao)如何解(jie)決?今天我們一(yi)起(qi)來看一(yi)下(xia)!

　　根據電磁兼(jian)容性產(chan)生的(de)要(yao)素(su)，解決(jue)電源適配(pei)器(qi)的(de)電磁兼(jian)容性可從三個方面入手(shou)：

　　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

　　對電(dian)(dian)源適配器產生的(de)(de)(de)(de)對外(wai)干(gan)擾(rao)(rao)，如電(dian)(dian)源線(xian)(xian)諧波電(dian)(dian)流(liu)(liu)(liu)、電(dian)(dian)源線(xian)(xian)傳導干(gan)擾(rao)(rao)、電(dian)(dian)磁場(chang)輻射干(gan)擾(rao)(rao)等(deng)，只能(neng)用減小干(gan)擾(rao)(rao)的(de)(de)(de)(de)方法來解決。一方面，可以增強輸入/輸出濾(lv)波電(dian)(dian)路的(de)(de)(de)(de)設計，改善有源功率因(yin)數補償(APFC)電(dian)(dian)路的(de)(de)(de)(de)性能(neng)，減小開(kai)關管(guan)(guan)及(ji)整(zheng)流(liu)(liu)(liu)、續流(liu)(liu)(liu)二極(ji)管(guan)(guan)的(de)(de)(de)(de)電(dian)(dian)壓(ya)、電(dian)(dian)流(liu)(liu)(liu)變化率，采用各種軟開(kai)關電(dian)(dian)路拓補結(jie)構及(ji)控(kong)制方式等(deng);另一方面，加強機殼的(de)(de)(de)(de)屏蔽效(xiao)果(guo)，改善機殼的(de)(de)(de)(de)縫隙泄(xie)露，并(bing)進行良好(hao)的(de)(de)(de)(de)接地處理。

　　對(dui)(dui)外部的(de)(de)(de)抗(kang)干(gan)擾能(neng)力，如浪涌、雷(lei)擊，應(ying)優化交流(liu)(liu)輸入及直流(liu)(liu)輸出端口的(de)(de)(de)防雷(lei)能(neng)力。對(dui)(dui)雷(lei)擊可(ke)采(cai)用氧化鋅壓(ya)(ya)敏電(dian)(dian)(dian)(dian)(dian)(dian)阻與氣體放電(dian)(dian)(dian)(dian)(dian)(dian)管等(deng)的(de)(de)(de)組合方法來解決。對(dui)(dui)于靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)放電(dian)(dian)(dian)(dian)(dian)(dian)，采(cai)用TVS管及相應(ying)的(de)(de)(de)接地保護，加大小(xiao)(xiao)(xiao)(xiao)信號電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)與機(ji)殼等(deng)的(de)(de)(de)距離，或選用具(ju)有抗(kang)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)干(gan)擾的(de)(de)(de)器件來解決。減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適配器的(de)(de)(de)內部干(gan)擾，應(ying)從(cong)以下幾(ji)個方面入手：注(zhu)意(yi)數字電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)與模擬電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)單點接地，大電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)與小(xiao)(xiao)(xiao)(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)特(te)別是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)取樣電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)單點接地，以減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)共(gong)阻干(gan)擾、減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)地環的(de)(de)(de)影響;布線(xian)(xian)時(shi)注(zhu)意(yi)相鄰線(xian)(xian)間的(de)(de)(de)間距及信號性質(zhi)，避免產生串擾;減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)地線(xian)(xian)阻抗(kang);減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)高壓(ya)(ya)大電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)路(lu)(lu)特(te)別是(shi)變壓(ya)(ya)器原邊(bian)與開關管、電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)所包圍的(de)(de)(de)面積;減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)輸出整流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)及續流(liu)(liu)二極管電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)與直流(liu)(liu)濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)所包圍的(de)(de)(de)面積;減(jian)(jian)(jian)小(xiao)(xiao)(xiao)(xiao)變壓(ya)(ya)器的(de)(de)(de)漏電(dian)(dian)(dian)(dian)(dian)(dian)感、濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)分布電(dian)(dian)(dian)(dian)(dian)(dian)容(rong);采(cai)用諧振頻率高的(de)(de)(de)濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)器等(deng)。

　　在(zai)(zai)傳播途徑方面，適當的(de)增加(jia)(jia)高(gao)抗干(gan)擾能(neng)力的(de)TUS及高(gao)頻電容、鐵氧(yang)體磁珠(zhu)等(deng)元器(qi)件，以(yi)提(ti)高(gao)小信(xin)(xin)號電路的(de)抗干(gan)擾能(neng)力;與機殼距(ju)離較近的(de)小信(xin)(xin)號電路，應(ying)加(jia)(jia)適當的(de)絕(jue)緣耐壓處理等(deng);功率器(qi)件的(de)散熱(re)器(qi)、主變壓器(qi)的(de)電磁屏蔽層要適當接(jie)地;各控制單(dan)元間的(de)大面積(ji)接(jie)地用(yong)接(jie)地板(ban)屏蔽;在(zai)(zai)整(zheng)流器(qi)的(de)機架上，要考慮各整(zheng)流器(qi)間電磁耦合、整(zheng)機地線(xian)布(bu)置(zhi)等(deng)，以(yi)改善(shan)電源適配器(qi)內部工作的(de)穩(wen)定(ding)性。

　　對于電源適配(pei)器(qi)的干擾(rao)如何解(jie)決想必大(da)家已(yi)經(jing)簡單了(le)解(jie)了(le)，希(xi)望大(da)家遇到這個問題的時(shi)候可(ke)以順利解(jie)決!