充電器(qi)在充電(dian)時如遇上劣質充電(dian)器(qi)會出現(xian)無故自燃，爆(bao)手機(ji)，甚至(zhi)是在充電(dian)時觸電(dian)，引發人員(yuan)傷忙。這一切都源于(yu)充電(dian)器(qi)中的(de)電(dian)子元器(qi)件的(de)品質問題。手機(ji)充電(dian)器(qi)y電(dian)容(rong)用于(yu)共模濾波(bo)，它接于(yu)L于(yu)地或N于(yu)地之間，濾除L對地或N對地的(de)共模信號，y電(dian)容(rong)通常對稱使用，作用主(zhu)要有旁(pang)路；去(qu)耦；濾波(bo)；儲(chu)能。

在入力初(chu)級端(duan)有個耐(nai)壓(ya)(ya)(ya)400v的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)，那是(shi)主濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)，濾除市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)整(zheng)流(liu)后的雜(za)(za)波(bo)，使后面(mian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路能得到更(geng)為(wei)平(ping)穩(wen)的直(zhi)(zhi)流(liu)正(zheng)弦波(bo)，只有雜(za)(za)波(bo)越(yue)(yue)少，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路才能更(geng)好(hao)(hao)的穩(wen)定工(gong)(gong)作，至于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)選400v耐(nai)壓(ya)(ya)(ya)值(zhi)(zhi)，開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路工(gong)(gong)作后，其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)兩端(duan)將有300多伏壓(ya)(ya)(ya)降，再加上通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)瞬間峰值(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，所(suo)以如(ru)果耐(nai)壓(ya)(ya)(ya)值(zhi)(zhi)太(tai)小(xiao)，會影起電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)暴裂，而(er)(er)輸出(chu)(chu)端(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)視其輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)大(da)(da)小(xiao)選擇(ze)適合的耐(nai)壓(ya)(ya)(ya)值(zhi)(zhi)，如(ru)5v則耐(nai)壓(ya)(ya)(ya)值(zhi)(zhi)是(shi)10v，該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)也是(shi)濾波(bo)作用，使充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)輸出(chu)(chu)平(ping)穩(wen)的直(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，至于(yu)容(rong)(rong)(rong)(rong)量(liang)(liang)的大(da)(da)小(xiao)，前面(mian)耐(nai)壓(ya)(ya)(ya)大(da)(da)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)一(yi)般選擇(ze)47~470uF，輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)一(yi)般100~1000uF，原則上是(shi)容(rong)(rong)(rong)(rong)量(liang)(liang)越(yue)(yue)大(da)(da)越(yue)(yue)好(hao)(hao)，但實際上容(rong)(rong)(rong)(rong)量(liang)(liang)越(yue)(yue)大(da)(da)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)越(yue)(yue)大(da)(da)，y電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)通交流(liu)阻直(zhi)(zhi)流(liu)。所(suo)以我們為(wei)手機(ji)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)要選擇(ze)質量(liang)(liang)好(hao)(hao)的充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)。而(er)(er)y電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的品質好(hao)(hao)壞直(zhi)(zhi)接充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)的質量(liang)(liang)。
作(zuo)為(wei)手機充電(dian)器(qi)中的(de)y電(dian)容(rong)，質量(liang)保障是很(hen)重要(yao)的(de)，選購y電(dian)容(rong)時選擇必須有安(an)全檢測機構的(de)認(ren)(ren)證(zheng)(zheng)和各(ge)工業國的(de)安(an)規認(ren)(ren)證(zheng)(zheng)，一般(ban)產(chan)品(pin)上都(dou)有認(ren)(ren)證(zheng)(zheng)標識。
手機充電(dian)(dian)(dian)器y電(dian)(dian)(dian)容，y電(dian)(dian)(dian)容，jec y電(dian)(dian)(dian)容，y電(dian)(dian)(dian)容器
　　手機充(chong)電(dian)器y電(dian)容用于共模(mo)濾波，原(yuan)則上是容量(liang)(liang)越(yue)大越(yue)好(hao)(hao).但實際上容量(liang)(liang)越(yue)大漏電(dian)流越(yue)大，y電(dian)容通交流阻直流.所以(yi)我們為手機充(chong)電(dian)時要選擇質量(liang)(liang)好(hao)(hao)的充(chong)電(dian)器，而(er)y電(dian)容的品(pin)質好(hao)(hao)壞直接充(chong)電(dian)器的質量(liang)(liang).