電源適(shi)配(pei)(pei)器(qi)產品(pin)性(xing)能(neng) 電源適(shi)配(pei)(pei)器(qi)的輸(shu)出(chu)電流是多少

1、電源適配器的性能

如圖所示，在電(dian)(dian)源適配器(qi)(下(xia)(xia)面(mian)稱adapter)的(de)(de)(de)標(biao)簽上面(mian)一(yi)般(ban)(ban)會有(you)幾項是(shi)(shi)需要(yao)注意的(de)(de)(de)。第一(yi)，是(shi)(shi)adapter的(de)(de)(de)型(xing)號，例如這(zhe)(zhe)顆adapter的(de)(de)(de)型(xing)號是(shi)(shi)XVE-120100，它告訴了我們幾個(ge)(ge)信(xin)息，就(jiu)是(shi)(shi)它的(de)(de)(de)廠商、瓦數等，XVE開頭的(de)(de)(de)一(yi)般(ban)(ban)就(jiu)是(shi)(shi)##公司(si)代(dai)號，120100就(jiu)是(shi)(shi)說(shuo)明這(zhe)(zhe)個(ge)(ge)adapter是(shi)(shi)12W的(de)(de)(de)，050200的(de)(de)(de)就(jiu)是(shi)(shi)10W的(de)(de)(de);第二(er)就(jiu)是(shi)(shi)adapter的(de)(de)(de)INPUT(輸入(ru))，在中國通用(yong)的(de)(de)(de)一(yi)般(ban)(ban)是(shi)(shi)100-240V~50-60Hz，這(zhe)(zhe)說(shuo)明這(zhe)(zhe)顆adapter可(ke)以(yi)在100V-240V的(de)(de)(de)電(dian)(dian)壓(ya)下(xia)(xia)面(mian)正常工(gong)作;第三就(jiu)是(shi)(shi)adapter的(de)(de)(de)OUTPUT(輸出)，兩(liang)個(ge)(ge)數字可(ke)以(yi)很快速的(de)(de)(de)算出這(zhe)(zhe)個(ge)(ge)adapter得瓦數，例如這(zhe)(zhe)個(ge)(ge)adapter，電(dian)(dian)壓(ya)12V*電(dian)(dian)流1A=12W(功率(lv))，說(shuo)明這(zhe)(zhe)個(ge)(ge)電(dian)(dian)源就(jiu)是(shi)(shi)12W的(de)(de)(de)adapter。

多(duo)數筆(bi)記(ji)本電(dian)(dian)腦(nao)的電(dian)(dian)源適配器可(ke)以適合用於100～240V交(jiao)流電(dian)(dian)(50/60Hz)。基本上大部份的筆(bi)記(ji)本電(dian)(dian)腦(nao)都把(ba)電(dian)(dian)源外置，用一條電(dian)(dian)源線和(he)主(zhu)(zhu)機(ji)連接，這(zhe)樣可(ke)以縮小主(zhu)(zhu)機(ji)的體積(ji)和(he)重量，只有極少數的機(ji)型把(ba)電(dian)(dian)源內置在主(zhu)(zhu)機(ji)內。

在(zai)電(dian)(dian)(dian)源適(shi)(shi)配器(qi)上都有一個(ge)銘牌(pai)，上面標(biao)示著功率，輸入(ru)輸出電(dian)(dian)(dian)壓和電(dian)(dian)(dian)流量等(deng)指標(biao)，特別(bie)要注意輸入(ru)電(dian)(dian)(dian)壓的范(fan)圍，這(zhe)(zhe)就是所謂的“旅(lv)行電(dian)(dian)(dian)源適(shi)(shi)配器(qi)”，如果到市電(dian)(dian)(dian)電(dian)(dian)(dian)壓只有110V的國家(jia)時(shi)，這(zhe)(zhe)個(ge)特性就很有用了(le)，有些水貨筆記本電(dian)(dian)(dian)腦是只在(zai)原產地銷售的，沒(mei)有這(zhe)(zhe)種(zhong)兼容電(dian)(dian)(dian)壓設(she)計，甚至(zhi)只有110V的單一輸入(ru)電(dian)(dian)(dian)壓，在(zai)我國的220V市電(dian)(dian)(dian)電(dian)(dian)(dian)壓下插上就會燒毀。

2、使用電源適配器時的注意事項

1)、電源適配器的標稱電壓和電流是什么意思?

首先，一(yi)(yi)般電(dian)(dian)(dian)(dian)源(yuan)(yuan)適配器標稱的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，是指開(kai)路輸出(chu)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，也就是外面(mian)不接任何負(fu)載(zai)，沒有電(dian)(dian)(dian)(dian)流輸出(chu)時候的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，所(suo)以(yi)也可以(yi)理解為(wei)，此電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)就是電(dian)(dian)(dian)(dian)源(yuan)(yuan)輸出(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)上(shang)限(xian)。對于電(dian)(dian)(dian)(dian)源(yuan)(yuan)內部使(shi)用了主動穩壓(ya)(ya)(ya)的(de)(de)元件的(de)(de)情況下，即使(shi)市電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)有所(suo)波(bo)動，其輸出(chu)也是恒定(ding)值，象市面(mian)上(shang)一(yi)(yi)般的(de)(de)小(xiao)變(bian)壓(ya)(ya)(ya)器，比如隨(sui)(sui)身聽之類配的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，如果市電(dian)(dian)(dian)(dian)波(bo)動，該(gai)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)輸出(chu)也會隨(sui)(sui)之波(bo)動的(de)(de)。一(yi)(yi)般來講普(pu)通電(dian)(dian)(dian)(dian)源(yuan)(yuan)適配器的(de)(de)真正空(kong)載(zai)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)也不一(yi)(yi)定(ding)和標稱電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)完(wan)全一(yi)(yi)致(zhi)，因為(wei)電(dian)(dian)(dian)(dian)子(zi)元件的(de)(de)特性不可能完(wan)全一(yi)(yi)致(zhi)，所(suo)以(yi)有一(yi)(yi)定(ding)的(de)(de)誤(wu)差，誤(wu)差越小(xiao)，對電(dian)(dian)(dian)(dian)子(zi)元件的(de)(de)一(yi)(yi)致(zhi)性要(yao)求越高(gao)，生產的(de)(de)成本就高(gao)了，所(suo)以(yi)價格也就貴一(yi)(yi)些了。

另外(wai)，關(guan)于標稱的電流值，無(wu)論任何電源都有一(yi)定的內(nei)阻，因此當電源輸(shu)出電流的時候，會(hui)在內(nei)部(bu)產(chan)生壓降，導致兩件事情(qing)，一(yi)個是產(chan)生熱(re)量，所以電源會(hui)熱(re)，另一(yi)個是導致輸(shu)出電壓降低，相(xiang)當于內(nei)部(bu)消耗(hao)。

2)、都是同樣標稱電壓的電源適配器，輸出電流不同，能不能用在同一臺本本上?

電(dian)源適配器電(dian)壓(ya)一(yi)樣，輸出電(dian)流(liu)不同，能(neng)不能(neng)用(yong)在同一(yi)臺本(ben)(ben)本(ben)(ben)上。基本(ben)(ben)的(de)原(yuan)則是大標稱電(dian)流(liu)的(de)電(dian)源可以代替小標稱電(dian)流(liu)的(de)電(dian)源。估(gu)計有人會(hui)這樣想，覺得(de)大標稱電(dian)流(liu)的(de)電(dian)源會(hui)燒壞本(ben)(ben)本(ben)(ben)，因為電(dian)流(liu)大了嘛(ma)。實際上電(dian)流(liu)多大在電(dian)壓(ya)相同的(de)情況(kuang)下取決(jue)于負載，想想初中的(de)物理(li)就知(zhi)道了。

當本(ben)(ben)(ben)本(ben)(ben)(ben)高負荷(he)運(yun)轉(zhuan)的(de)(de)(de)時候(hou)(hou)，電(dian)(dian)(dian)流(liu)(liu)大些，本(ben)(ben)(ben)本(ben)(ben)(ben)進入待機的(de)(de)(de)時候(hou)(hou)，電(dian)(dian)(dian)流(liu)(liu)就小(xiao)些，大標(biao)稱電(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)筆記本(ben)(ben)(ben)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)(shi)配器(qi)有足夠的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)余量。反之，有人用56w的(de)(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)代(dai)替(ti)72w的(de)(de)(de)用起來也沒什么問題(ti)，原(yuan)因是通常(chang)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)(shi)配器(qi)的(de)(de)(de)設(she)計(ji)留(liu)有一定的(de)(de)(de)余量，負載功(gong)(gong)率都要小(xiao)于電(dian)(dian)(dian)源(yuan)(yuan)(yuan)功(gong)(gong)率，所以(yi)這種代(dai)替(ti)在一般使用上是可行的(de)(de)(de)，但是剩(sheng)余的(de)(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)功(gong)(gong)率余量就很少了，一旦你的(de)(de)(de)本(ben)(ben)(ben)本(ben)(ben)(ben)接了很多外設(she)，比(bi)如兩塊usb硬盤(pan)，然后cpu全速運(yun)轉(zhuan)，再有一個(ge)(ge)底座，上面(mian)來個(ge)(ge)光驅全速讀盤(pan)，再加上同(tong)時給電(dian)(dian)(dian)池充電(dian)(dian)(dian)，估計(ji)就危(wei)險了，要隨時用手(shou)摸(mo)摸(mo)你的(de)(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)是不是已經可以(yi)煮雞(ji)蛋了。所以(yi)最好(hao)不要用小(xiao)電(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)代(dai)替(ti)大電(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)。

3)、一模一樣的機器，別人的電源適配器溫溫的，我的總是很燙，為什么?

先不要懷疑(yi)你(ni)的(de)電(dian)源(yuan)(yuan)有問題，先看(kan)看(kan)你(ni)的(de)本(ben)(ben)本(ben)(ben)在干什(shen)么，是(shi)不是(shi)像上(shang)面(mian)說的(de)兩塊USB硬盤，CPU全(quan)速運轉，硬盤瘋狂讀(du)寫，光驅全(quan)速讀(du)盤，同時給電(dian)池充電(dian)，大聲放(fang)著音樂，屏幕(mu)亮度最大，無線網卡一直在偵測信號等等，善用電(dian)源(yuan)(yuan)管理(li)，根據任務合理(li)調整本(ben)(ben)本(ben)(ben)的(de)工作(zuo)狀態是(shi)很重要的(de)。

4)、電源適配器標稱電壓比我的本本電池電壓高很多，不會出事吧?

首先，要(yao)知道的(de)是，電(dian)源適配(pei)器給本本供電(dian)與電(dian)池給本本供電(dian)是不(bu)同的(de)。

電(dian)(dian)(dian)池(chi)供電(dian)(dian)(dian)，電(dian)(dian)(dian)池(chi)的(de)(de)輸出是(shi)純(chun)直流，干(gan)凈(jing)得很，電(dian)(dian)(dian)池(chi)的(de)(de)電(dian)(dian)(dian)壓(ya)既(ji)不(bu)可能也不(bu)需要(yao)設計(ji)得很高，鋰電(dian)(dian)(dian)池(chi)的(de)(de)化學特性(xing)決定(ding)了(le)一(yi)節電(dian)(dian)(dian)芯的(de)(de)輸出電(dian)(dian)(dian)壓(ya)只(zhi)能在3.6V左右(you)，所(suo)以很多電(dian)(dian)(dian)池(chi)都是(shi)采用三級串聯的(de)(de)方式，10.8V也就(jiu)成了(le)很流行的(de)(de)電(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)壓(ya)。有些(xie)電(dian)(dian)(dian)池(chi)的(de)(de)標稱值比3.6V的(de)(de)整(zheng)數倍(bei)稍(shao)大一(yi)些(xie)，比如3.7V或者(zhe)11.2V等(deng)等(deng)，其實是(shi)為(wei)了(le)保護電(dian)(dian)(dian)池(chi)。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配器供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，情(qing)況就復雜一些，首(shou)先需(xu)要對加入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)進行進一步的穩(wen)壓(ya)濾波，以(yi)保證(zheng)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)性(xing)能不很(hen)好的情(qing)況下(xia)穩(wen)定工作(zuo)，穩(wen)壓(ya)后的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)分城兩個部分，一路(lu)(lu)給(gei)(gei)本(ben)(ben)本(ben)(ben)工作(zuo)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，另一路(lu)(lu)給(gei)(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，給(gei)(gei)本(ben)(ben)本(ben)(ben)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的那部分同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的時(shi)候相同，而給(gei)(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的那部分需(xu)要通過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池的充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)才(cai)可(ke)以(yi)加在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)上(shang)，控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)可(ke)以(yi)很(hen)復雜，所以(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)必須大于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)才(cai)有充(chong)分的能力供(gong)(gong)應給(gei)(gei)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的各(ge)單元(yuan)。最(zui)后真(zhen)正加到電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)上(shang)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)決不會是你的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)標稱(cheng)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)。放心好了。

結語

電(dian)源適(shi)配器的(de)應用廣泛，并(bing)且(qie)具(ju)有持續增長的(de)趨(qu)勢，電(dian)源生產廠家紛(fen)紛(fen)投入到(dao)對電(dian)源適(shi)配器的(de)研(yan)發當中。由(you)于設備(bei)和(he)技術的(de)差(cha)異，導致電(dian)源適(shi)配器的(de)產品性能(neng)和(he)產品質量有很大的(de)差(cha)別，小編在這里提醒大家，選擇(ze)電(dian)源適(shi)配器時一定要謹慎(shen)。