電源適配器的幾個常見問題!

　　一(yi)、電(dian)源(yuan)適配器(下稱電(dian)源(yuan))的(de)標稱電(dian)壓(ya)和電(dian)流代表(biao)什么意思?最先(xian)，一(yi)般(ban)電(dian)源(yuan)標稱的(de)電(dian)壓(ya)，就(jiu)(jiu)是指(zhi)引(yin)路輸(shu)出(chu)(chu)的(de)電(dian)壓(ya)，也就(jiu)(jiu)是說外邊(bian)不(bu)接一(yi)切負荷，沒(mei)有(you)電(dian)流輸(shu)出(chu)(chu)那(nei)時候的(de)電(dian)壓(ya)，因此(ci)還可以了解為，此(ci)電(dian)壓(ya)就(jiu)(jiu)是說電(dian)源(yuan)輸(shu)出(chu)(chu)電(dian)壓(ya)的(de)限(xian)制。

　　針(zhen)對電(dian)(dian)(dian)源內部應用了積極穩(wen)壓(ya)管的(de)元器件的(de)狀況下(xia)，即便電(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)壓(ya)有一定的(de)起伏(fu)(fu)，其輸(shu)出(chu)都是(shi)穩(wen)定值，像(xiang)目前市面上一般的(de)小變電(dian)(dian)(dian)器，例如mp3播放(fang)器這類配(pei)的(de)電(dian)(dian)(dian)源，假如電(dian)(dian)(dian)壓(ya)起伏(fu)(fu)，該電(dian)(dian)(dian)源的(de)輸(shu)出(chu)也不容易隨(sui)著起伏(fu)(fu)的(de)。

　　一(yi)(yi)般(ban)來講(jiang)一(yi)(yi)般(ban)電(dian)源適配器(qi)(qi)的(de)真實滿載電(dian)壓也不一(yi)(yi)定和標稱電(dian)壓完全一(yi)(yi)致，由于電(dian)子元器(qi)(qi)件(jian)的(de)特點不太可能(neng)完全一(yi)(yi)致，因(yin)此(ci)有一(yi)(yi)定的(de)偏差，偏差越(yue)小，對電(dian)子元器(qi)(qi)件(jian)的(de)一(yi)(yi)致性規定越(yue)高，制造的(de)成本(ben)費就高了(le)，因(yin)此(ci)價錢也就貴一(yi)(yi)些了(le)。

　　此外，有關標稱(cheng)的電(dian)(dian)流值，不管一(yi)(yi)切電(dian)(dian)源常有一(yi)(yi)定的內電(dian)(dian)阻，因而當電(dian)(dian)源輸出電(dian)(dian)流的那時候，會在(zai)內部造(zao)(zao)成壓力降，造(zao)(zao)成倆件事兒(er)，一(yi)(yi)個(ge)是(shi)造(zao)(zao)成發熱量，因此電(dian)(dian)源會熱，另一(yi)(yi)個(ge)是(shi)造(zao)(zao)成輸出電(dian)(dian)壓減少，等于內部耗(hao)費(fei)。

　　二、全是(shi)一樣(yang)標稱(cheng)電(dian)壓(ya)的電(dian)源，輸出(chu)電(dian)流不一樣(yang)，能否用在同(tong)一臺本子上?

　　電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)壓一(yi)(yi)樣(yang)，輸出(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)不一(yi)(yi)樣(yang)，能否用(yong)在(zai)同一(yi)(yi)臺本(ben)(ben)(ben)子(zi)上(shang)(shang)(shang)。基礎的(de)(de)(de)標(biao)(biao)準是(shi)(shi)大(da)標(biao)(biao)稱(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)能夠替代(dai)小標(biao)(biao)稱(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)。估算許多人(ren)會(hui)那樣(yang)想(xiang)，感覺大(da)標(biao)(biao)稱(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)會(hui)燒(shao)毀(hui)本(ben)(ben)(ben)子(zi)，由于電(dian)(dian)(dian)(dian)(dian)流(liu)變(bian)大(da)嘛(ma)。事實上(shang)(shang)(shang)電(dian)(dian)(dian)(dian)(dian)流(liu)多少在(zai)電(dian)(dian)(dian)(dian)(dian)壓同樣(yang)的(de)(de)(de)狀況下(xia)(xia)(xia)在(zai)于負(fu)荷，呵(he)呵(he)呵(he)，想(xiang)一(yi)(yi)想(xiang)初級(ji)中學的(de)(de)(de)物理學就(jiu)知道。當本(ben)(ben)(ben)子(zi)長(chang)時(shi)間負(fu)荷運行的(de)(de)(de)那時(shi)候，電(dian)(dian)(dian)(dian)(dian)流(liu)大(da)點，本(ben)(ben)(ben)子(zi)進到關機的(de)(de)(de)那時(shi)候，電(dian)(dian)(dian)(dian)(dian)流(liu)就(jiu)小些(xie)，大(da)標(biao)(biao)稱(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)有(you)(you)(you)充足的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)容量(liang)。相反(fan)，許多人(ren)用(yong)56w的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)替代(dai)72w的(de)(de)(de)用(yong)起來也(ye)沒有(you)(you)(you)什么難題(ti)，緣故是(shi)(shi)一(yi)(yi)般 電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)器的(de)(de)(de)設計方案留出(chu)一(yi)(yi)定(ding)的(de)(de)(de)容量(liang)，負(fu)荷輸出(chu)功(gong)率(lv)必(bi)須低(di)于電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)輸出(chu)功(gong)率(lv)，因此這類替代(dai)在(zai)一(yi)(yi)般應(ying)用(yong)上(shang)(shang)(shang)是(shi)(shi)行得通的(de)(de)(de)，可是(shi)(shi)剩下(xia)(xia)(xia)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)輸出(chu)功(gong)率(lv)容量(liang)就(jiu)非常少了，一(yi)(yi)旦你(ni)(ni)的(de)(de)(de)本(ben)(ben)(ben)子(zi)接(jie)了許多外(wai)接(jie)設備，例如二塊usb固(gu)態(tai)盤，隨(sui)后(hou)cpu飛(fei)速運行，還有(you)(you)(you)一(yi)(yi)個(ge)基座(zuo)，上(shang)(shang)(shang)邊來個(ge)光驅飛(fei)速讀盤，加上(shang)(shang)(shang)另外(wai)給電(dian)(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)(dian)，估算就(jiu)風險了，要(yao)隨(sui)時(shi)隨(sui)地(di)用(yong)手摸下(xia)(xia)(xia)你(ni)(ni)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是(shi)(shi)否早(zao)已能夠煮蛋(dan)了。因此盡量(liang)不要(yao)用(yong)小電(dian)(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)替代(dai)大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)。

　　三(san)、一模一樣(yang)的(de)(de)設備(bei)，他人的(de)(de)電源(yuan)溫溫的(de)(de)，我(wo)的(de)(de)一直很燙(tang)，為何(he)?

　　先(xian)不必猜(cai)疑你(ni)的(de)(de)(de)(de)電(dian)(dian)源(yuan)不太好，先(xian)看(kan)一下你(ni)的(de)(de)(de)(de)本(ben)子在干嘛，是否像上邊說的(de)(de)(de)(de)二塊USB固(gu)態盤，CPU飛速運行，固(gu)態盤瘋狂讀(du)寫(xie)能力，光驅飛速讀(du)盤，另外給(gei)電(dian)(dian)池充(chong)電(dian)(dian)，高聲放(fang)著歌(ge)曲，顯示器亮(liang)度較大，無線網卡一直(zhi)在探測數據信號這(zhe)些(xie)，靈活運用電(dian)(dian)源(yuan)管理(li)方法(fa)，依據每日(ri)任務有效調(diao)節本(ben)子的(de)(de)(de)(de)工作態度是很關鍵的(de)(de)(de)(de)。

　　四、電(dian)源標稱電(dian)壓(ya)比我(wo)的本子充(chong)電(dian)電(dian)池電(dian)壓(ya)高許多，不容(rong)易出(chu)事了吧?

　　最先，要(yao)了解的是(shi)，電(dian)源給本(ben)子(zi)供電(dian)系統與充電(dian)電(dian)池給本(ben)子(zi)供電(dian)系統是(shi)不一樣(yang)的。

　　充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)供電(dian)(dian)(dian)(dian)(dian)系統，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)輸出(chu)是純直流電(dian)(dian)(dian)(dian)(dian)，整潔(jie)得很(hen)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓既不太(tai)可能也(ye)不用(yong)設計方案得很(hen)高，鋰電(dian)(dian)(dian)(dian)(dian)的(de)(de)有機化學特(te)點決(jue)策(ce)了一節鋰電(dian)(dian)(dian)(dian)(dian)芯的(de)(de)輸出(chu)電(dian)(dian)(dian)(dian)(dian)壓只有在3.6V上下(xia)，因此許多充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)全是選用(yong)三級串連的(de)(de)方法，10.8V也(ye)就變成很(hen)時興的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)壓。一些充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的(de)(de)標稱(cheng)值比3.6V的(de)(de)整數(shu)倍稍(shao)大一些，例如3.7V或是11.2V這些，實際上是以便維護(hu)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)。

　　電(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)，狀(zhuang)況就繁雜一(yi)(yi)(yi)些，最(zui)先必須對添加電(dian)(dian)(dian)(dian)壓(ya)開(kai)展進一(yi)(yi)(yi)步的(de)(de)穩(wen)(wen)壓(ya)管濾波器(qi)，以(yi)確保在電(dian)(dian)(dian)(dian)源(yuan)(yuan)特性不非常(chang)好的(de)(de)狀(zhuang)況下平穩(wen)(wen)工作(zuo)中(zhong)，穩(wen)(wen)壓(ya)管后(hou)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)分為2個一(yi)(yi)(yi)部(bu)分，一(yi)(yi)(yi)路給(gei)(gei)(gei)(gei)本(ben)子工作(zuo)中(zhong)供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)，另(ling)一(yi)(yi)(yi)路給(gei)(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，給(gei)(gei)(gei)(gei)本(ben)子供(gong)電(dian)(dian)(dian)(dian)系(xi)統(tong)的(de)(de)那一(yi)(yi)(yi)部(bu)分同充電(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，而給(gei)(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)的(de)(de)那一(yi)(yi)(yi)部(bu)分必須根據充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池的(de)(de)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)控制回(hui)路才能夠加進鋰電(dian)(dian)(dian)(dian)芯(xin)上，控制回(hui)路能夠很繁雜，因此電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)務必超(chao)過鋰電(dian)(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)(dian)壓(ya)才有充足(zu)的(de)(de)工作(zuo)能力供(gong)貨給(gei)(gei)(gei)(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)控制回(hui)路的(de)(de)各模塊。最(zui)終真實加進鋰電(dian)(dian)(dian)(dian)芯(xin)上的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)絕不會就是你的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)標(biao)稱的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)。放心(xin)好了。