電源(yuan)適(shi)(shi)配器產品性能 電源(yuan)適(shi)(shi)配器的(de)輸出電流是多少

1、電源適配器的性能

如圖所示(shi)，在電(dian)源適配器(下面(mian)(mian)稱(cheng)adapter)的(de)標簽上面(mian)(mian)一(yi)般會有幾(ji)項(xiang)是(shi)需要注意(yi)的(de)。第(di)一(yi)，是(shi)adapter的(de)型號，例(li)如這(zhe)顆(ke)adapter的(de)型號是(shi)XVE-120100，它告訴了我(wo)們幾(ji)個(ge)(ge)(ge)信(xin)息，就(jiu)(jiu)是(shi)它的(de)廠商、瓦(wa)數(shu)(shu)等，XVE開頭的(de)一(yi)般就(jiu)(jiu)是(shi)##公司代號，120100就(jiu)(jiu)是(shi)說(shuo)明這(zhe)個(ge)(ge)(ge)adapter是(shi)12W的(de)，050200的(de)就(jiu)(jiu)是(shi)10W的(de);第(di)二就(jiu)(jiu)是(shi)adapter的(de)INPUT(輸(shu)入)，在中國通用的(de)一(yi)般是(shi)100-240V~50-60Hz，這(zhe)說(shuo)明這(zhe)顆(ke)adapter可(ke)以在100V-240V的(de)電(dian)壓(ya)下面(mian)(mian)正常工(gong)作;第(di)三(san)就(jiu)(jiu)是(shi)adapter的(de)OUTPUT(輸(shu)出(chu))，兩個(ge)(ge)(ge)數(shu)(shu)字可(ke)以很快速的(de)算出(chu)這(zhe)個(ge)(ge)(ge)adapter得瓦(wa)數(shu)(shu)，例(li)如這(zhe)個(ge)(ge)(ge)adapter，電(dian)壓(ya)12V*電(dian)流1A=12W(功率)，說(shuo)明這(zhe)個(ge)(ge)(ge)電(dian)源就(jiu)(jiu)是(shi)12W的(de)adapter。

多數筆記本電(dian)(dian)(dian)腦的電(dian)(dian)(dian)源(yuan)適(shi)配器可(ke)以適(shi)合用(yong)於100～240V交流電(dian)(dian)(dian)(50/60Hz)。基本上大(da)部份(fen)的筆記本電(dian)(dian)(dian)腦都把電(dian)(dian)(dian)源(yuan)外置，用(yong)一條電(dian)(dian)(dian)源(yuan)線和(he)主(zhu)機(ji)連接，這樣(yang)可(ke)以縮小主(zhu)機(ji)的體積和(he)重量，只有(you)極少數的機(ji)型把電(dian)(dian)(dian)源(yuan)內置在主(zhu)機(ji)內。

在電(dian)(dian)(dian)源(yuan)適配器上(shang)都有(you)(you)(you)一個銘牌，上(shang)面標示著功率，輸入輸出電(dian)(dian)(dian)壓和電(dian)(dian)(dian)流量等指標，特別要注意輸入電(dian)(dian)(dian)壓的范圍，這就是所謂的“旅行電(dian)(dian)(dian)源(yuan)適配器”，如(ru)果到(dao)市電(dian)(dian)(dian)電(dian)(dian)(dian)壓只有(you)(you)(you)110V的國(guo)家時，這個特性(xing)就很有(you)(you)(you)用了(le)，有(you)(you)(you)些水貨筆記本電(dian)(dian)(dian)腦是只在原產地銷售(shou)的，沒有(you)(you)(you)這種兼(jian)容(rong)電(dian)(dian)(dian)壓設計，甚至只有(you)(you)(you)110V的單(dan)一輸入電(dian)(dian)(dian)壓，在我國(guo)的220V市電(dian)(dian)(dian)電(dian)(dian)(dian)壓下插上(shang)就會(hui)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(xian)，一(yi)般電(dian)(dian)(dian)源(yuan)適配(pei)器(qi)標(biao)稱的(de)(de)(de)(de)電(dian)(dian)(dian)壓，是指(zhi)開路(lu)輸(shu)出(chu)的(de)(de)(de)(de)電(dian)(dian)(dian)壓，也就是外面不(bu)接任(ren)何負(fu)載，沒(mei)有電(dian)(dian)(dian)流輸(shu)出(chu)時候(hou)的(de)(de)(de)(de)電(dian)(dian)(dian)壓，所(suo)以(yi)(yi)也可(ke)以(yi)(yi)理(li)解為(wei)，此電(dian)(dian)(dian)壓就是電(dian)(dian)(dian)源(yuan)輸(shu)出(chu)電(dian)(dian)(dian)壓的(de)(de)(de)(de)上(shang)限。對于(yu)電(dian)(dian)(dian)源(yuan)內部(bu)使用了主(zhu)動穩(wen)壓的(de)(de)(de)(de)元(yuan)件的(de)(de)(de)(de)情況下，即(ji)使市電(dian)(dian)(dian)電(dian)(dian)(dian)壓有所(suo)波(bo)動，其輸(shu)出(chu)也是恒(heng)定值，象市面上(shang)一(yi)般的(de)(de)(de)(de)小變壓器(qi)，比如隨身聽之類配(pei)的(de)(de)(de)(de)電(dian)(dian)(dian)源(yuan)，如果(guo)市電(dian)(dian)(dian)波(bo)動，該電(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)輸(shu)出(chu)也會隨之波(bo)動的(de)(de)(de)(de)。一(yi)般來講普通電(dian)(dian)(dian)源(yuan)適配(pei)器(qi)的(de)(de)(de)(de)真正空載電(dian)(dian)(dian)壓也不(bu)一(yi)定和(he)標(biao)稱電(dian)(dian)(dian)壓完全(quan)一(yi)致(zhi)，因(yin)為(wei)電(dian)(dian)(dian)子元(yuan)件的(de)(de)(de)(de)特性不(bu)可(ke)能完全(quan)一(yi)致(zhi)，所(suo)以(yi)(yi)有一(yi)定的(de)(de)(de)(de)誤差(cha)，誤差(cha)越(yue)小，對電(dian)(dian)(dian)子元(yuan)件的(de)(de)(de)(de)一(yi)致(zhi)性要求越(yue)高(gao)，生(sheng)產的(de)(de)(de)(de)成本就高(gao)了，所(suo)以(yi)(yi)價格也就貴一(yi)些了。

另外，關于標稱(cheng)的(de)電(dian)流值，無論(lun)任(ren)何電(dian)源都有(you)一(yi)(yi)定的(de)內(nei)(nei)阻，因此當(dang)電(dian)源輸(shu)出電(dian)流的(de)時候，會(hui)在內(nei)(nei)部產生(sheng)壓(ya)降，導致(zhi)兩件事情，一(yi)(yi)個(ge)是產生(sheng)熱量，所以電(dian)源會(hui)熱，另一(yi)(yi)個(ge)是導致(zhi)輸(shu)出電(dian)壓(ya)降低，相(xiang)當(dang)于內(nei)(nei)部消耗。

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)源適配(pei)器電(dian)(dian)壓一樣，輸出(chu)電(dian)(dian)流不同，能不能用在(zai)同一臺本(ben)本(ben)上(shang)。基本(ben)的原(yuan)則是大標(biao)(biao)稱(cheng)電(dian)(dian)流的電(dian)(dian)源可(ke)以代替小標(biao)(biao)稱(cheng)電(dian)(dian)流的電(dian)(dian)源。估計有人(ren)會這(zhe)樣想(xiang)，覺(jue)得大標(biao)(biao)稱(cheng)電(dian)(dian)流的電(dian)(dian)源會燒壞(huai)本(ben)本(ben)，因為電(dian)(dian)流大了嘛。實際(ji)上(shang)電(dian)(dian)流多(duo)大在(zai)電(dian)(dian)壓相(xiang)同的情況下取(qu)決于負(fu)載(zai)，想(xiang)想(xiang)初中的物理就知道(dao)了。

當本(ben)(ben)(ben)(ben)本(ben)(ben)(ben)(ben)高負荷運轉的(de)(de)(de)時候，電(dian)(dian)(dian)(dian)流(liu)大些(xie)，本(ben)(ben)(ben)(ben)本(ben)(ben)(ben)(ben)進入待機的(de)(de)(de)時候，電(dian)(dian)(dian)(dian)流(liu)就小些(xie)，大標稱電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)筆記本(ben)(ben)(ben)(ben)電(dian)(dian)(dian)(dian)源(yuan)適配(pei)器有(you)(you)足夠(gou)的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)余量(liang)。反之(zhi)，有(you)(you)人用(yong)(yong)56w的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)代(dai)替72w的(de)(de)(de)用(yong)(yong)起來(lai)也沒什么問題(ti)，原(yuan)因是(shi)通常電(dian)(dian)(dian)(dian)源(yuan)適配(pei)器的(de)(de)(de)設(she)計留有(you)(you)一定(ding)的(de)(de)(de)余量(liang)，負載(zai)功率(lv)(lv)都要(yao)小于電(dian)(dian)(dian)(dian)源(yuan)功率(lv)(lv)，所以這種代(dai)替在一般(ban)使用(yong)(yong)上(shang)是(shi)可行(xing)的(de)(de)(de)，但是(shi)剩余的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)功率(lv)(lv)余量(liang)就很少(shao)了(le)，一旦你的(de)(de)(de)本(ben)(ben)(ben)(ben)本(ben)(ben)(ben)(ben)接了(le)很多外設(she)，比如(ru)兩塊usb硬(ying)盤，然(ran)后cpu全速運轉，再(zai)有(you)(you)一個(ge)底(di)座，上(shang)面來(lai)個(ge)光驅全速讀盤，再(zai)加上(shang)同時給電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，估(gu)計就危險了(le)，要(yao)隨時用(yong)(yong)手(shou)摸(mo)摸(mo)你的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)是(shi)不是(shi)已(yi)經可以煮雞蛋了(le)。所以最好不要(yao)用(yong)(yong)小電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)源(yuan)代(dai)替大電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)源(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(bu)要懷疑你(ni)的(de)電(dian)源有(you)問題，先看看你(ni)的(de)本本在(zai)(zai)干(gan)什么，是不(bu)是像(xiang)上面(mian)說(shuo)的(de)兩塊USB硬(ying)盤，CPU全速運轉，硬(ying)盤瘋狂讀寫，光(guang)驅(qu)全速讀盤，同(tong)時(shi)給電(dian)池充電(dian)，大聲(sheng)放著音(yin)樂，屏幕(mu)亮度最(zui)大，無線(xian)網卡一直(zhi)在(zai)(zai)偵測信號(hao)等等，善用電(dian)源管理，根據任務合理調(diao)整本本的(de)工作狀態是很重要的(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，要知道(dao)的(de)(de)是，電源適配器給(gei)本本供電與電池給(gei)本本供電是不同的(de)(de)。

電(dian)(dian)(dian)(dian)池(chi)供電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)輸(shu)出(chu)(chu)是(shi)純直流，干凈得很(hen)，電(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓既不可能(neng)(neng)也(ye)不需要(yao)設計得很(hen)高，鋰(li)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)化學特(te)性決定(ding)了一(yi)節電(dian)(dian)(dian)(dian)芯(xin)的(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)壓只能(neng)(neng)在3.6V左(zuo)右(you)，所以很(hen)多電(dian)(dian)(dian)(dian)池(chi)都是(shi)采用三級(ji)串聯的(de)(de)(de)方式，10.8V也(ye)就成了很(hen)流行的(de)(de)(de)電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)壓。有些(xie)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)標稱值比3.6V的(de)(de)(de)整數倍(bei)稍大一(yi)些(xie)，比如3.7V或者11.2V等等，其實是(shi)為了保護電(dian)(dian)(dian)(dian)池(chi)。

電(dian)(dian)(dian)源適(shi)配器供電(dian)(dian)(dian)，情況(kuang)(kuang)就復雜一(yi)些，首先(xian)需要(yao)(yao)對(dui)加(jia)入電(dian)(dian)(dian)壓(ya)進行進一(yi)步的(de)穩壓(ya)濾波(bo)，以保證在(zai)電(dian)(dian)(dian)源性能不(bu)很好的(de)情況(kuang)(kuang)下穩定工(gong)作(zuo)，穩壓(ya)后(hou)的(de)電(dian)(dian)(dian)壓(ya)分(fen)(fen)城(cheng)兩個部分(fen)(fen)，一(yi)路(lu)(lu)給(gei)(gei)本(ben)(ben)本(ben)(ben)工(gong)作(zuo)供電(dian)(dian)(dian)，另(ling)一(yi)路(lu)(lu)給(gei)(gei)電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)，給(gei)(gei)本(ben)(ben)本(ben)(ben)供電(dian)(dian)(dian)的(de)那部分(fen)(fen)同(tong)電(dian)(dian)(dian)池供電(dian)(dian)(dian)的(de)時(shi)候相同(tong)，而給(gei)(gei)電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)的(de)那部分(fen)(fen)需要(yao)(yao)通(tong)過電(dian)(dian)(dian)池的(de)充(chong)電(dian)(dian)(dian)控制電(dian)(dian)(dian)路(lu)(lu)才(cai)可(ke)以加(jia)在(zai)電(dian)(dian)(dian)芯(xin)上，控制電(dian)(dian)(dian)路(lu)(lu)可(ke)以很復雜，所以電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)必須(xu)大于電(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)壓(ya)才(cai)有(you)充(chong)分(fen)(fen)的(de)能力供應給(gei)(gei)充(chong)電(dian)(dian)(dian)控制電(dian)(dian)(dian)路(lu)(lu)的(de)各單元。最后(hou)真正加(jia)到(dao)電(dian)(dian)(dian)芯(xin)上的(de)電(dian)(dian)(dian)壓(ya)決不(bu)會是你(ni)的(de)電(dian)(dian)(dian)源標稱(cheng)的(de)電(dian)(dian)(dian)壓(ya)。放心好了。

結語

電(dian)源適(shi)(shi)配器(qi)(qi)的(de)(de)(de)應用(yong)廣泛(fan)，并且(qie)具有(you)持續增(zeng)長的(de)(de)(de)趨勢，電(dian)源生產廠家紛紛投入(ru)到對電(dian)源適(shi)(shi)配器(qi)(qi)的(de)(de)(de)研發(fa)當中。由(you)于設備(bei)和技術的(de)(de)(de)差異，導(dao)致(zhi)電(dian)源適(shi)(shi)配器(qi)(qi)的(de)(de)(de)產品性能(neng)和產品質量有(you)很大的(de)(de)(de)差別，小編在(zai)這里提醒(xing)大家，選(xuan)擇電(dian)源適(shi)(shi)配器(qi)(qi)時一(yi)定(ding)要謹慎(shen)。