安(an)規(gui)認(ren)證(zheng)(zheng)是各個國(guo)家和地(di)區對電源產(chan)品的強(qiang)制(zhi)(zhi)要(yao)求，他對電源產(chan)品在技術方面有一些強(qiang)制(zhi)(zhi)性(xing)的標準要(yao)求，飛天鷹(ying)電源適配器廠(chang)家十五年來(lai)只生(sheng)產(chan)認(ren)證(zheng)(zheng)電源擁有UL、CE、CB、FCC、GS、CCC、PSE、SAA、KC、BSMI等多種國(guo)際(ji)認(ren)證(zheng)(zheng)，今天和大家簡單介(jie)紹一下安(an)規(gui)電源的PCB要(yao)求。

1.開(kai)關耐壓與(yu)漏(lou)電要求(qiu)

當開(kai)關電(dian)(dian)源的(de)輸入、輸出電(dian)(dian)壓交流超過(guo)(guo)36V, 直(zhi)流超過(guo)(guo)42V 時(shi)，需(xu)要(yao)考慮(lv)觸電(dian)(dian)問題。安規規定：任何兩個可觸及(ji)件(jian)或任何一(yi)個可觸及(ji)件(jian)與電(dian)(dian)源的(de)一(yi)極間漏(lou)電(dian)(dian)不要(yao)超過(guo)(guo) 及(ji)件(jian)與電(dian)(dian)源的(de)一(yi)極間漏(lou)電(dian)(dian)不要(yao)超過(guo)(guo)0.7mAp 或直(zhi)流 2mA。

輸(shu)(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)開關(guan)電(dian)(dian)(dian)(dian)(dian)源220V時，其冷熱地之(zhi)間(jian)的(de)(de)爬電(dian)(dian)(dian)(dian)(dian)距離不能小(xiao)于6mm，兩端口線間(jian)的(de)(de)間(jian)距必須大(da)于3mm。開關(guan)變壓(ya)(ya)器的(de)(de)初次級之(zhi)間(jian)的(de)(de)耐壓(ya)(ya)要求使(shi)用(yong)交(jiao)(jiao)流(liu)(liu)3000v，設定漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)10mA。進(jin)行(xing)1分鐘(zhong)的(de)(de)測試，其漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)必須小(xiao)于10mA.開關(guan)電(dian)(dian)(dian)(dian)(dian)源的(de)(de)輸(shu)(shu)入(ru)端對地（外殼）的(de)(de)耐壓(ya)(ya)使(shi)用(yong)交(jiao)(jiao)流(liu)(liu)1500V，設定漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)10mA,進(jin)行(xing)1分鐘(zhong)的(de)(de)耐壓(ya)(ya)測試，其漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)必須小(xiao)于10mA。開關(guan)電(dian)(dian)(dian)(dian)(dian)源的(de)(de)輸(shu)(shu)出端對地（外殼）的(de)(de)耐壓(ya)(ya)使(shi)用(yong)直流(liu)(liu)500V，設定漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)10mA,進(jin)行(xing)1分鐘(zhong)的(de)(de)耐壓(ya)(ya)測試，其漏電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)必須小(xiao)于10mA。

2.開(kai)關(guan)安(an)全(quan)(quan)爬電(dian)距(ju)(ju)(ju)離(li)要求：兩(liang)線中的一次(ci)側(ce)和(he)二(er)(er)次(ci)側(ce)安(an)全(quan)(quan)距(ju)(ju)(ju)離(li)：6mm，加(jia)(jia)1mm開(kai)槽也(ye)要4.5mm。三線中的一次(ci)側(ce)和(he)二(er)(er)次(ci)側(ce)安(an)全(quan)(quan)距(ju)(ju)(ju)離(li)：6mm，加(jia)(jia)1mm開(kai)槽也(ye)要4.5mm。保險絲兩(liang)銅(tong)(tong)(tong)箔(bo)(bo)(bo)之(zhi)間(jian)(jian)(jian)安(an)全(quan)(quan)距(ju)(ju)(ju)離(li)>2.5mm。加(jia)(jia)1mm開(kai)槽也(ye)要1.5mm。L—N,L—GND,N—GND.之(zhi)間(jian)(jian)(jian)的距(ju)(ju)(ju)離(li)大于3.5mm。初級濾波電(dian)容腳間(jian)(jian)(jian)距(ju)(ju)(ju)>4mm。初次(ci)級間(jian)(jian)(jian)安(an)全(quan)(quan)距(ju)(ju)(ju)離(li)>6mm。開(kai)關(guan)電(dian)源(yuan)PCB布線要求。銅(tong)(tong)(tong)箔(bo)(bo)(bo)與(yu)銅(tong)(tong)(tong)箔(bo)(bo)(bo)之(zhi)間(jian)(jian)(jian)：0.5mm，銅(tong)(tong)(tong)箔(bo)(bo)(bo)與(yu)焊(han)點之(zhi)間(jian)(jian)(jian)：0.75mm焊(han)點與(yu)焊(han)點之(zhi)間(jian)(jian)(jian)：1.0mm銅(tong)(tong)(tong)箔(bo)(bo)(bo)與(yu)板邊(bian)(bian)(bian)之(zhi)間(jian)(jian)(jian)：0.25mm孔邊(bian)(bian)(bian)與(yu)孔邊(bian)(bian)(bian)之(zhi)間(jian)(jian)(jian)：1.0mm孔邊(bian)(bian)(bian)與(yu)板邊(bian)(bian)(bian)之(zhi)間(jian)(jian)(jian)：1.0mm銅(tong)(tong)(tong)箔(bo)(bo)(bo)線寬>0.3mm。

轉彎角度45°平(ping)行(xing)線之間布線時要求等間距。開關(guan)電源(yuan)安全(quan)要求

從安(an)規的(de)(de)(de)(de)元件中(zhong)找出(chu)安(an)規要(yao)求保險絲，其(qi)兩個焊盤間的(de)(de)(de)(de)爬電(dian)距(ju)離>3.0mm（min）。在發生后級(ji)短路后，要(yao)在安(an)規電(dian)容(rong)(rong)X,Y。其(qi)考慮(lv)耐壓(ya)和容(rong)(rong)許的(de)(de)(de)(de)漏(lou)電(dian)流(liu)。在亞熱帶(dai)環(huan)境中(zhong)其(qi)設備的(de)(de)(de)(de)漏(lou)電(dian)流(liu)要(yao)<0.7mA,工作在溫(wen)帶(dai)環(huan)境中(zhong)的(de)(de)(de)(de)設備漏(lou)電(dian)流(liu)要(yao)<0.35mA，一般的(de)(de)(de)(de)Y電(dian)容(rong)(rong)要(yao)不(bu)大(da)于4700pF。容(rong)(rong)量>0.1uF的(de)(de)(de)(de)X電(dian)容(rong)(rong)要(yao)加(jia)泄放(fang)電(dian)阻(zu)。在正常工作的(de)(de)(de)(de)設備掉電(dian)后，其(qi)插頭(tou)間的(de)(de)(de)(de)電(dian)壓(ya)在1秒內的(de)(de)(de)(de)電(dian)壓(ya)值不(bu)大(da)于42V。

開(kai)關(guan)電(dian)源(yuan)保護要求(qiu)在開(kai)關(guan)電(dian)源(yuan)總輸出功率大(da)于15W時(shi)(shi)，應(ying)(ying)進行(xing)短路測試。輸出端(duan)短路時(shi)(shi)，電(dian)路內(nei)不能發生有過熱(re)、起火(huo)，或(huo)者燃燒時(shi)(shi)間(jian)在3內(nei)。相鄰(lin)線路之間(jian)距(ju)離小(xiao)于0.2mm時(shi)(shi)，可(ke)認(ren)為(wei)是短路。電(dian)解電(dian)容(rong)應(ying)(ying)進行(xing)短路實(shi)驗，此時(shi)(shi)因為(wei)電(dian)解電(dian)容(rong)很容(rong)易失效，在進行(xing)短路測試應(ying)(ying)注意器件，防止(zhi)起火(huo)。

掌握電源行(xing)業(ye)領先技(ji)術，飛天(tian)鷹電源以高(gao)品質，高(gao)效率(lv)著稱。選擇認證電源，六(liu)級能效電源歡迎前來(lai)咨詢。