電源適配器的幾個常見問題!

　　一(yi)(yi)、電(dian)(dian)源(yuan)適(shi)配(pei)器(下稱電(dian)(dian)源(yuan))的標稱電(dian)(dian)壓(ya)(ya)(ya)(ya)和電(dian)(dian)流(liu)代表什么意思?最(zui)先(xian)，一(yi)(yi)般電(dian)(dian)源(yuan)標稱的電(dian)(dian)壓(ya)(ya)(ya)(ya)，就(jiu)(jiu)是指(zhi)引路輸出的電(dian)(dian)壓(ya)(ya)(ya)(ya)，也就(jiu)(jiu)是說(shuo)外邊不接一(yi)(yi)切負荷，沒有電(dian)(dian)流(liu)輸出那(nei)時候的電(dian)(dian)壓(ya)(ya)(ya)(ya)，因此還可(ke)以了解為(wei)，此電(dian)(dian)壓(ya)(ya)(ya)(ya)就(jiu)(jiu)是說(shuo)電(dian)(dian)源(yuan)輸出電(dian)(dian)壓(ya)(ya)(ya)(ya)的限制。

　　針對電(dian)源(yuan)(yuan)內部應用(yong)了(le)積極(ji)穩壓管的(de)元器(qi)件的(de)狀況下，即(ji)便(bian)電(dian)壓電(dian)壓有(you)一定的(de)起伏，其輸出(chu)(chu)都是穩定值，像(xiang)目(mu)前市面上一般的(de)小變電(dian)器(qi)，例如(ru)mp3播放(fang)器(qi)這(zhe)類配(pei)的(de)電(dian)源(yuan)(yuan)，假如(ru)電(dian)壓起伏，該電(dian)源(yuan)(yuan)的(de)輸出(chu)(chu)也(ye)不容(rong)易隨著起伏的(de)。

　　一(yi)(yi)(yi)(yi)般來(lai)講一(yi)(yi)(yi)(yi)般電源適配(pei)器(qi)的(de)真實(shi)滿載電壓(ya)也不一(yi)(yi)(yi)(yi)定(ding)和標稱電壓(ya)完全一(yi)(yi)(yi)(yi)致，由于電子(zi)元器(qi)件的(de)特點不太可能完全一(yi)(yi)(yi)(yi)致，因(yin)此有一(yi)(yi)(yi)(yi)定(ding)的(de)偏(pian)差，偏(pian)差越(yue)小，對(dui)電子(zi)元器(qi)件的(de)一(yi)(yi)(yi)(yi)致性規(gui)定(ding)越(yue)高(gao)，制造(zao)的(de)成本費就(jiu)高(gao)了，因(yin)此價(jia)錢也就(jiu)貴(gui)一(yi)(yi)(yi)(yi)些了。

　　此外(wai)，有關標稱的電流(liu)值，不(bu)管一切電源常有一定的內電阻，因而當電源輸出電流(liu)的那時候，會在內部(bu)(bu)造(zao)成(cheng)(cheng)壓力降，造(zao)成(cheng)(cheng)倆(lia)件事兒，一個(ge)是造(zao)成(cheng)(cheng)發熱量，因此電源會熱，另一個(ge)是造(zao)成(cheng)(cheng)輸出電壓減少，等于內部(bu)(bu)耗費(fei)。

　　二(er)、全(quan)是(shi)一樣(yang)(yang)標稱(cheng)電壓的電源(yuan)，輸出電流(liu)不一樣(yang)(yang)，能否(fou)用在(zai)同一臺本(ben)子上?

　　電(dian)(dian)源(yuan)電(dian)(dian)壓(ya)一(yi)(yi)(yi)(yi)樣(yang)，輸(shu)(shu)出電(dian)(dian)流(liu)(liu)不一(yi)(yi)(yi)(yi)樣(yang)，能(neng)否用(yong)(yong)在(zai)同一(yi)(yi)(yi)(yi)臺本(ben)子上(shang)。基礎的(de)(de)(de)(de)標(biao)準(zhun)是大標(biao)稱(cheng)電(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)電(dian)(dian)源(yuan)能(neng)夠替代(dai)(dai)(dai)小標(biao)稱(cheng)電(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)電(dian)(dian)源(yuan)。估算許(xu)多人會那(nei)樣(yang)想(xiang)，感覺大標(biao)稱(cheng)電(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)電(dian)(dian)源(yuan)會燒毀本(ben)子，由于電(dian)(dian)流(liu)(liu)變(bian)大嘛。事實(shi)上(shang)電(dian)(dian)流(liu)(liu)多少(shao)在(zai)電(dian)(dian)壓(ya)同樣(yang)的(de)(de)(de)(de)狀(zhuang)況下在(zai)于負荷(he)，呵呵呵，想(xiang)一(yi)(yi)(yi)(yi)想(xiang)初級中學(xue)的(de)(de)(de)(de)物理(li)學(xue)就知道。當本(ben)子長時(shi)間負荷(he)運行(xing)(xing)的(de)(de)(de)(de)那(nei)時(shi)候(hou)，電(dian)(dian)流(liu)(liu)大點，本(ben)子進到關機(ji)的(de)(de)(de)(de)那(nei)時(shi)候(hou)，電(dian)(dian)流(liu)(liu)就小些(xie)，大標(biao)稱(cheng)電(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)電(dian)(dian)源(yuan)有(you)充(chong)足(zu)的(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)容量。相(xiang)反，許(xu)多人用(yong)(yong)56w的(de)(de)(de)(de)電(dian)(dian)源(yuan)替代(dai)(dai)(dai)72w的(de)(de)(de)(de)用(yong)(yong)起來也沒有(you)什(shen)么難題，緣(yuan)故是一(yi)(yi)(yi)(yi)般 電(dian)(dian)源(yuan)適配器的(de)(de)(de)(de)設計方案留(liu)出一(yi)(yi)(yi)(yi)定(ding)的(de)(de)(de)(de)容量，負荷(he)輸(shu)(shu)出功率(lv)必須低于電(dian)(dian)源(yuan)輸(shu)(shu)出功率(lv)，因此(ci)這類替代(dai)(dai)(dai)在(zai)一(yi)(yi)(yi)(yi)般應用(yong)(yong)上(shang)是行(xing)(xing)得通的(de)(de)(de)(de)，可是剩下的(de)(de)(de)(de)電(dian)(dian)源(yuan)輸(shu)(shu)出功率(lv)容量就非常少(shao)了，一(yi)(yi)(yi)(yi)旦你的(de)(de)(de)(de)本(ben)子接了許(xu)多外(wai)(wai)接設備，例如二(er)塊usb固(gu)態盤(pan)，隨(sui)后cpu飛速運行(xing)(xing)，還有(you)一(yi)(yi)(yi)(yi)個基座(zuo)，上(shang)邊來個光驅(qu)飛速讀盤(pan)，加上(shang)另外(wai)(wai)給電(dian)(dian)池(chi)充(chong)電(dian)(dian)，估算就風險了，要(yao)隨(sui)時(shi)隨(sui)地用(yong)(yong)手摸下你的(de)(de)(de)(de)電(dian)(dian)源(yuan)是否早(zao)已能(neng)夠煮(zhu)蛋了。因此(ci)盡量不要(yao)用(yong)(yong)小電(dian)(dian)流(liu)(liu)電(dian)(dian)源(yuan)替代(dai)(dai)(dai)大電(dian)(dian)流(liu)(liu)電(dian)(dian)源(yuan)。

　　三、一(yi)(yi)模一(yi)(yi)樣的設備，他(ta)人的電(dian)源溫(wen)(wen)溫(wen)(wen)的，我的一(yi)(yi)直很燙，為何(he)?

　　先不必猜疑你的(de)電源不太好，先看(kan)一下(xia)你的(de)本(ben)子(zi)在干嘛，是否像上邊說的(de)二塊(kuai)USB固態盤(pan)，CPU飛速運(yun)行(xing)，固態盤(pan)瘋狂(kuang)讀寫能力(li)，光驅飛速讀盤(pan)，另(ling)外給電池充電，高聲放著歌曲，顯示器亮度(du)較大，無(wu)線網(wang)卡一直在探測數據信號這些，靈活運(yun)用電源管理(li)方(fang)法，依據每(mei)日任務(wu)有效調(diao)節本(ben)子(zi)的(de)工作(zuo)態度(du)是很關鍵的(de)。

　　四、電(dian)(dian)源標稱電(dian)(dian)壓比我的本(ben)子充電(dian)(dian)電(dian)(dian)池(chi)電(dian)(dian)壓高許多，不容易出(chu)事了吧?

　　最先(xian)，要了(le)解的(de)是，電(dian)(dian)(dian)源(yuan)給本子供電(dian)(dian)(dian)系(xi)統(tong)與充電(dian)(dian)(dian)電(dian)(dian)(dian)池給本子供電(dian)(dian)(dian)系(xi)統(tong)是不(bu)一(yi)樣的(de)。

　　充(chong)電(dian)(dian)電(dian)(dian)池供電(dian)(dian)系(xi)統，充(chong)電(dian)(dian)電(dian)(dian)池的(de)(de)(de)輸(shu)出是純直流電(dian)(dian)，整潔得很，充(chong)電(dian)(dian)電(dian)(dian)池的(de)(de)(de)電(dian)(dian)壓既不(bu)太可能也不(bu)用(yong)設(she)計(ji)方案得很高，鋰(li)電(dian)(dian)的(de)(de)(de)有機化學特(te)點決策(ce)了一節鋰(li)電(dian)(dian)芯的(de)(de)(de)輸(shu)出電(dian)(dian)壓只(zhi)有在3.6V上下，因(yin)此許多充(chong)電(dian)(dian)電(dian)(dian)池全是選用(yong)三級串連的(de)(de)(de)方法(fa)，10.8V也就變(bian)成很時興的(de)(de)(de)充(chong)電(dian)(dian)電(dian)(dian)池電(dian)(dian)壓。一些(xie)充(chong)電(dian)(dian)電(dian)(dian)池的(de)(de)(de)標稱值比3.6V的(de)(de)(de)整數倍稍大一些(xie)，例如3.7V或是11.2V這些(xie)，實(shi)際上是以(yi)便維(wei)護充(chong)電(dian)(dian)電(dian)(dian)池。

　　電(dian)(dian)(dian)(dian)源供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)，狀(zhuang)況(kuang)就繁(fan)雜(za)一(yi)(yi)些，最先必(bi)須(xu)對(dui)添(tian)加(jia)電(dian)(dian)(dian)(dian)壓(ya)(ya)開展進(jin)一(yi)(yi)步的(de)(de)穩(wen)(wen)壓(ya)(ya)管濾波器，以確保在電(dian)(dian)(dian)(dian)源特性不非常好的(de)(de)狀(zhuang)況(kuang)下平穩(wen)(wen)工(gong)作(zuo)(zuo)中，穩(wen)(wen)壓(ya)(ya)管后的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)分為(wei)2個一(yi)(yi)部分，一(yi)(yi)路(lu)(lu)(lu)給(gei)(gei)(gei)本子(zi)工(gong)作(zuo)(zuo)中供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)，另一(yi)(yi)路(lu)(lu)(lu)給(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)，給(gei)(gei)(gei)本子(zi)供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)的(de)(de)那一(yi)(yi)部分同充(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)的(de)(de)那時候同樣，而(er)給(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)的(de)(de)那一(yi)(yi)部分必(bi)須(xu)根據充(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池的(de)(de)電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)控(kong)制(zhi)回路(lu)(lu)(lu)才(cai)(cai)能(neng)夠加(jia)進(jin)鋰電(dian)(dian)(dian)(dian)芯(xin)上，控(kong)制(zhi)回路(lu)(lu)(lu)能(neng)夠很繁(fan)雜(za)，因(yin)此電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)(ya)務必(bi)超過鋰電(dian)(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)(dian)壓(ya)(ya)才(cai)(cai)有充(chong)(chong)足的(de)(de)工(gong)作(zuo)(zuo)能(neng)力供(gong)貨給(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)控(kong)制(zhi)回路(lu)(lu)(lu)的(de)(de)各模塊。最終真實加(jia)進(jin)鋰電(dian)(dian)(dian)(dian)芯(xin)上的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)絕(jue)不會(hui)就是你的(de)(de)電(dian)(dian)(dian)(dian)源標稱(cheng)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)。放(fang)心好了。