電源(yuan)(yuan)適配器產(chan)品性能 電源(yuan)(yuan)適配器的輸(shu)出電流是多少

1、電源適配器的性能

如(ru)圖所(suo)示，在(zai)(zai)電源適配器(qi)(下(xia)面(mian)稱adapter)的(de)(de)(de)(de)標(biao)簽上面(mian)一(yi)般會有幾項(xiang)是(shi)(shi)需(xu)要(yao)注意的(de)(de)(de)(de)。第一(yi)，是(shi)(shi)adapter的(de)(de)(de)(de)型(xing)號(hao)，例(li)如(ru)這(zhe)顆adapter的(de)(de)(de)(de)型(xing)號(hao)是(shi)(shi)XVE-120100，它告(gao)訴(su)了我們幾個(ge)(ge)信息，就(jiu)(jiu)(jiu)是(shi)(shi)它的(de)(de)(de)(de)廠商(shang)、瓦數(shu)等，XVE開頭的(de)(de)(de)(de)一(yi)般就(jiu)(jiu)(jiu)是(shi)(shi)##公司代號(hao)，120100就(jiu)(jiu)(jiu)是(shi)(shi)說明(ming)這(zhe)個(ge)(ge)adapter是(shi)(shi)12W的(de)(de)(de)(de)，050200的(de)(de)(de)(de)就(jiu)(jiu)(jiu)是(shi)(shi)10W的(de)(de)(de)(de);第二就(jiu)(jiu)(jiu)是(shi)(shi)adapter的(de)(de)(de)(de)INPUT(輸入)，在(zai)(zai)中(zhong)國通用的(de)(de)(de)(de)一(yi)般是(shi)(shi)100-240V~50-60Hz，這(zhe)說明(ming)這(zhe)顆adapter可(ke)以在(zai)(zai)100V-240V的(de)(de)(de)(de)電壓下(xia)面(mian)正常工作(zuo);第三(san)就(jiu)(jiu)(jiu)是(shi)(shi)adapter的(de)(de)(de)(de)OUTPUT(輸出)，兩(liang)個(ge)(ge)數(shu)字可(ke)以很快(kuai)速的(de)(de)(de)(de)算出這(zhe)個(ge)(ge)adapter得瓦數(shu)，例(li)如(ru)這(zhe)個(ge)(ge)adapter，電壓12V*電流(liu)1A=12W(功率(lv))，說明(ming)這(zhe)個(ge)(ge)電源就(jiu)(jiu)(jiu)是(shi)(shi)12W的(de)(de)(de)(de)adapter。

多數筆記本電(dian)(dian)腦的(de)(de)電(dian)(dian)源(yuan)(yuan)適配器可以(yi)適合用於(wu)100～240V交流電(dian)(dian)(50/60Hz)。基本上大部(bu)份的(de)(de)筆記本電(dian)(dian)腦都(dou)把(ba)(ba)電(dian)(dian)源(yuan)(yuan)外置，用一條電(dian)(dian)源(yuan)(yuan)線和(he)主機連接(jie)，這樣可以(yi)縮小主機的(de)(de)體積和(he)重量，只有極少數的(de)(de)機型(xing)把(ba)(ba)電(dian)(dian)源(yuan)(yuan)內置在(zai)主機內。

在電(dian)(dian)(dian)(dian)源適(shi)(shi)配(pei)器上都有(you)一個銘牌，上面標示著功率，輸(shu)入輸(shu)出電(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)流(liu)量等指標，特別要(yao)注意輸(shu)入電(dian)(dian)(dian)(dian)壓(ya)的范圍，這就是(shi)所謂(wei)的“旅行電(dian)(dian)(dian)(dian)源適(shi)(shi)配(pei)器”，如果到市電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)只(zhi)有(you)110V的國(guo)家時，這個特性就很有(you)用(yong)了，有(you)些水(shui)貨(huo)筆記本電(dian)(dian)(dian)(dian)腦是(shi)只(zhi)在原產地銷售(shou)的，沒有(you)這種兼(jian)容電(dian)(dian)(dian)(dian)壓(ya)設計，甚(shen)至只(zhi)有(you)110V的單一輸(shu)入電(dian)(dian)(dian)(dian)壓(ya)，在我(wo)國(guo)的220V市電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)下(xia)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)(dian)源適(shi)配(pei)器(qi)標(biao)稱的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，是(shi)指開(kai)路輸出(chu)(chu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，也就(jiu)是(shi)外面不接任何負載，沒有電(dian)(dian)(dian)(dian)(dian)流輸出(chu)(chu)時候的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，所以也可以理解為，此電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)就(jiu)是(shi)電(dian)(dian)(dian)(dian)(dian)源輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)上限。對于電(dian)(dian)(dian)(dian)(dian)源內(nei)部(bu)使用了(le)主動(dong)穩壓(ya)(ya)(ya)的(de)(de)元件(jian)(jian)的(de)(de)情況下，即使市電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)有所波動(dong)，其輸出(chu)(chu)也是(shi)恒(heng)定值，象(xiang)市面上一(yi)(yi)般的(de)(de)小變壓(ya)(ya)(ya)器(qi)，比如隨身聽(ting)之類配(pei)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源，如果市電(dian)(dian)(dian)(dian)(dian)波動(dong)，該(gai)電(dian)(dian)(dian)(dian)(dian)源的(de)(de)輸出(chu)(chu)也會隨之波動(dong)的(de)(de)。一(yi)(yi)般來講普通電(dian)(dian)(dian)(dian)(dian)源適(shi)配(pei)器(qi)的(de)(de)真正空載電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)也不一(yi)(yi)定和標(biao)稱電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)完(wan)全(quan)一(yi)(yi)致，因為電(dian)(dian)(dian)(dian)(dian)子元件(jian)(jian)的(de)(de)特性不可能完(wan)全(quan)一(yi)(yi)致，所以有一(yi)(yi)定的(de)(de)誤(wu)差，誤(wu)差越小，對電(dian)(dian)(dian)(dian)(dian)子元件(jian)(jian)的(de)(de)一(yi)(yi)致性要(yao)求越高，生(sheng)產(chan)的(de)(de)成本就(jiu)高了(le)，所以價格也就(jiu)貴一(yi)(yi)些了(le)。

另(ling)外，關于標(biao)稱的電(dian)流值，無(wu)論任何電(dian)源(yuan)(yuan)都(dou)有一(yi)定的內(nei)阻，因此當電(dian)源(yuan)(yuan)輸出電(dian)流的時候(hou)，會在內(nei)部產(chan)生壓降，導致(zhi)兩(liang)件事(shi)情，一(yi)個(ge)是產(chan)生熱(re)量(liang)，所以(yi)電(dian)源(yuan)(yuan)會熱(re)，另(ling)一(yi)個(ge)是導致(zhi)輸出電(dian)壓降低(di)，相當于內(nei)部消耗(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)(dian)(dian)(dian)源(yuan)適配(pei)器電(dian)(dian)(dian)(dian)壓(ya)(ya)一樣，輸出電(dian)(dian)(dian)(dian)流(liu)不(bu)同(tong)，能不(bu)能用在同(tong)一臺本本上。基本的(de)原(yuan)則是大標(biao)稱電(dian)(dian)(dian)(dian)流(liu)的(de)電(dian)(dian)(dian)(dian)源(yuan)可以代替小(xiao)標(biao)稱電(dian)(dian)(dian)(dian)流(liu)的(de)電(dian)(dian)(dian)(dian)源(yuan)。估計有人會這(zhe)樣想(xiang)(xiang)，覺得大標(biao)稱電(dian)(dian)(dian)(dian)流(liu)的(de)電(dian)(dian)(dian)(dian)源(yuan)會燒(shao)壞本本，因為電(dian)(dian)(dian)(dian)流(liu)大了嘛。實際上電(dian)(dian)(dian)(dian)流(liu)多大在電(dian)(dian)(dian)(dian)壓(ya)(ya)相同(tong)的(de)情況下(xia)取決于負(fu)載，想(xiang)(xiang)想(xiang)(xiang)初中的(de)物理就(jiu)知(zhi)道(dao)了。

當(dang)本(ben)本(ben)高負(fu)荷運轉的(de)(de)時(shi)候(hou)，電(dian)(dian)(dian)(dian)流(liu)大(da)(da)(da)些，本(ben)本(ben)進入(ru)待機的(de)(de)時(shi)候(hou)，電(dian)(dian)(dian)(dian)流(liu)就小些，大(da)(da)(da)標稱電(dian)(dian)(dian)(dian)流(liu)的(de)(de)筆記本(ben)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器有足夠的(de)(de)電(dian)(dian)(dian)(dian)流(liu)余(yu)量(liang)。反之(zhi)，有人用(yong)56w的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)代(dai)替(ti)72w的(de)(de)用(yong)起(qi)來也沒什么(me)問(wen)題(ti)，原因是通常電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器的(de)(de)設計留有一(yi)(yi)定的(de)(de)余(yu)量(liang)，負(fu)載功(gong)率都要(yao)(yao)小于電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)功(gong)率，所(suo)以這種(zhong)代(dai)替(ti)在一(yi)(yi)般使(shi)用(yong)上(shang)(shang)是可行的(de)(de)，但(dan)是剩余(yu)的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)功(gong)率余(yu)量(liang)就很少了(le)，一(yi)(yi)旦你的(de)(de)本(ben)本(ben)接了(le)很多外設，比如(ru)兩塊usb硬(ying)盤(pan)(pan)，然后cpu全(quan)(quan)速運轉，再有一(yi)(yi)個底座，上(shang)(shang)面來個光(guang)驅全(quan)(quan)速讀盤(pan)(pan)，再加(jia)上(shang)(shang)同時(shi)給電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，估計就危險了(le)，要(yao)(yao)隨時(shi)用(yong)手摸摸你的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是不(bu)是已經可以煮雞蛋了(le)。所(suo)以最好不(bu)要(yao)(yao)用(yong)小電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)代(dai)替(ti)大(da)(da)(da)電(dian)(dian)(dian)(dian)流(liu)電(dian)(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?

先不要懷疑你的電源(yuan)有問題，先看看你的本本在(zai)干什么，是(shi)不是(shi)像上面說的兩塊USB硬盤，CPU全速(su)運轉，硬盤瘋(feng)狂讀寫，光(guang)驅全速(su)讀盤，同時給電池(chi)充電，大聲(sheng)放(fang)著音樂，屏幕亮度(du)最大，無線網卡一直在(zai)偵(zhen)測信號等等，善用電源(yuan)管理，根(gen)據(ju)任(ren)務合理調整本本的工作狀態是(shi)很重(zhong)要的。

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，要知道的(de)(de)是(shi)，電(dian)源(yuan)適配器給本(ben)本(ben)供電(dian)與電(dian)池給本(ben)本(ben)供電(dian)是(shi)不(bu)同的(de)(de)。

電池(chi)(chi)(chi)供電，電池(chi)(chi)(chi)的輸出(chu)是(shi)純直流(liu)，干凈得(de)很(hen)，電池(chi)(chi)(chi)的電壓既(ji)不(bu)可能也(ye)(ye)不(bu)需要設(she)計(ji)得(de)很(hen)高，鋰(li)電池(chi)(chi)(chi)的化學特性(xing)決(jue)定了(le)一節電芯的輸出(chu)電壓只能在3.6V左右，所(suo)以(yi)很(hen)多電池(chi)(chi)(chi)都是(shi)采用(yong)三級串(chuan)聯的方式，10.8V也(ye)(ye)就成(cheng)了(le)很(hen)流(liu)行的電池(chi)(chi)(chi)電壓。有些(xie)電池(chi)(chi)(chi)的標稱值(zhi)比(bi)3.6V的整數倍(bei)稍(shao)大(da)一些(xie)，比(bi)如3.7V或者11.2V等等，其(qi)實(shi)是(shi)為了(le)保(bao)護電池(chi)(chi)(chi)。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)適配器供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，情(qing)況就復雜一些(xie)，首先(xian)需要(yao)對加入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)進行進一步的(de)(de)(de)(de)穩壓(ya)濾波，以(yi)(yi)保證在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)性能不很(hen)好(hao)的(de)(de)(de)(de)情(qing)況下穩定工作(zuo)，穩壓(ya)后(hou)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)分城兩個部分，一路給(gei)本(ben)本(ben)工作(zuo)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，另一路給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，給(gei)本(ben)本(ben)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)那部分同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)時候相同，而(er)給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)那部分需要(yao)通過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路才(cai)可以(yi)(yi)加在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)上(shang)，控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路可以(yi)(yi)很(hen)復雜，所以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)必須大(da)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)才(cai)有充分的(de)(de)(de)(de)能力供(gong)應給(gei)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)各單元。最(zui)后(hou)真正加到電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)上(shang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)決不會(hui)是你的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)標(biao)稱的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)。放心好(hao)了。

結語

電源(yuan)適(shi)(shi)配(pei)器(qi)(qi)的(de)應用廣泛，并且具有持續增(zeng)長(chang)的(de)趨勢，電源(yuan)生產(chan)(chan)廠家紛(fen)(fen)紛(fen)(fen)投入到對電源(yuan)適(shi)(shi)配(pei)器(qi)(qi)的(de)研(yan)發當中。由于設備和(he)技術(shu)的(de)差異，導致電源(yuan)適(shi)(shi)配(pei)器(qi)(qi)的(de)產(chan)(chan)品性能和(he)產(chan)(chan)品質量有很(hen)大的(de)差別，小編在(zai)這里提醒大家，選擇電源(yuan)適(shi)(shi)配(pei)器(qi)(qi)時一(yi)定(ding)要謹慎。