充電器在充電(dian)(dian)時如遇(yu)上劣質充電(dian)(dian)器(qi)會出現(xian)無(wu)故(gu)自(zi)燃，爆手(shou)機(ji)，甚至(zhi)是在充電(dian)(dian)時觸(chu)電(dian)(dian)，引(yin)發人員(yuan)傷忙。這一切都源于充電(dian)(dian)器(qi)中的電(dian)(dian)子(zi)元(yuan)器(qi)件的品質問題。手(shou)機(ji)充電(dian)(dian)器(qi)y電(dian)(dian)容用(yong)于共(gong)模(mo)濾(lv)波，它接于L于地(di)或(huo)N于地(di)之間，濾(lv)除L對地(di)或(huo)N對地(di)的共(gong)模(mo)信號，y電(dian)(dian)容通(tong)常對稱使(shi)用(yong)，作用(yong)主要有旁路；去(qu)耦；濾(lv)波；儲能。

在入力(li)初級端有(you)個(ge)耐(nai)(nai)(nai)壓400v的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)，那是(shi)(shi)主(zhu)濾(lv)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)，濾(lv)除市電(dian)(dian)(dian)(dian)(dian)(dian)整流(liu)(liu)后的(de)(de)雜(za)波(bo)(bo)，使(shi)后面(mian)電(dian)(dian)(dian)(dian)(dian)(dian)路能得(de)到更為平穩(wen)的(de)(de)直(zhi)流(liu)(liu)正(zheng)弦波(bo)(bo)，只有(you)雜(za)波(bo)(bo)越少(shao)，電(dian)(dian)(dian)(dian)(dian)(dian)路才能更好的(de)(de)穩(wen)定(ding)工(gong)(gong)作(zuo)，至(zhi)于電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)選400v耐(nai)(nai)(nai)壓值(zhi)，開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)路工(gong)(gong)作(zuo)后，其電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)兩(liang)端將有(you)300多(duo)伏壓降，再加上通電(dian)(dian)(dian)(dian)(dian)(dian)瞬(shun)間峰值(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓，所以如(ru)果耐(nai)(nai)(nai)壓值(zhi)太(tai)小，會影起(qi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)暴裂(lie)，而輸(shu)(shu)出端電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)視(shi)其輸(shu)(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)壓大(da)小選擇(ze)適合的(de)(de)耐(nai)(nai)(nai)壓值(zhi)，如(ru)5v則耐(nai)(nai)(nai)壓值(zhi)是(shi)(shi)10v，該電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)也是(shi)(shi)濾(lv)波(bo)(bo)作(zuo)用，使(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)輸(shu)(shu)出平穩(wen)的(de)(de)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)，至(zhi)于容(rong)量(liang)的(de)(de)大(da)小，前面(mian)耐(nai)(nai)(nai)壓大(da)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)一般選擇(ze)47~470uF，輸(shu)(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)一般100~1000uF，原(yuan)則上是(shi)(shi)容(rong)量(liang)越大(da)越好，但(dan)實際上容(rong)量(liang)越大(da)漏電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)越大(da)，y電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)通交流(liu)(liu)阻直(zhi)流(liu)(liu)。所以我們為手機充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時要選擇(ze)質量(liang)好的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)。而y電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)品(pin)質好壞直(zhi)接充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)質量(liang)。
作為手機(ji)充電(dian)(dian)器中的y電(dian)(dian)容(rong)，質量保障是很重要的，選購y電(dian)(dian)容(rong)時選擇必須有安全(quan)檢測機(ji)構的認(ren)證和各工業國(guo)的安規(gui)認(ren)證，一般(ban)產品(pin)上都有認(ren)證標(biao)識。
手機充電器y電容(rong)(rong)，y電容(rong)(rong)，jec y電容(rong)(rong)，y電容(rong)(rong)器
　　手(shou)機充(chong)(chong)電器y電容用于共模濾(lv)波(bo)，原則(ze)上(shang)(shang)是容量(liang)(liang)越(yue)大越(yue)好(hao).但實際上(shang)(shang)容量(liang)(liang)越(yue)大漏電流越(yue)大，y電容通(tong)交流阻直流.所以我們為手(shou)機充(chong)(chong)電時要選擇(ze)質量(liang)(liang)好(hao)的充(chong)(chong)電器，而(er)y電容的品質好(hao)壞直接充(chong)(chong)電器的質量(liang)(liang).