二極管是什么類型？

二(er)極(ji)管(guan)是一種(zhong)(zhong)電(dian)(dian)子元件，它具有兩種(zhong)(zhong)工作狀態：正向偏(pian)置和反向偏(pian)置。在正向偏(pian)置狀態下(xia)，二(er)極(ji)管(guan)允許電(dian)(dian)流通過；而在反向偏(pian)置狀態下(xia)，二(er)極(ji)管(guan)阻止(zhi)電(dian)(dian)流通過。這種(zhong)(zhong)單向導(dao)電(dian)(dian)特性使(shi)得二(er)極(ji)管(guan)成為(wei)電(dian)(dian)子電(dian)(dian)路中的基(ji)本構(gou)建模塊之一。

二(er)極(ji)管(guan)有多種類型(xing)，以下是一些常見的二(er)極(ji)管(guan)類型(xing)：

1.整(zheng)流(liu)二(er)極(ji)管：這類二(er)極(ji)管主要(yao)用于整(zheng)流(liu)，即將交(jiao)流(liu)電（AC）轉換為直(zhi)流(liu)電（DC）。

2.齊納二(er)(er)極管：齊納二(er)(er)極管是(shi)一種限壓(ya)二(er)(er)極管，用(yong)于(yu)穩定電壓(ya)。當施加在二(er)(er)極管兩端的電壓(ya)達到某一特定值(zhi)時(shi)，齊納二(er)(er)極管將(jiang)開始導(dao)通。

3.開關(guan)二(er)極管(guan)：開關(guan)二(er)極管(guan)是一種高(gao)速開關(guan)元件(jian)，用(yong)于高(gao)速開關(guan)應用(yong)。它們(men)具有較低的(de)電容和(he)快速的(de)開關(guan)速度(du)，適合(he)高(gao)頻應用(yong)。

4.肖特(te)基二(er)(er)極(ji)(ji)管(guan)(guan)(guan)：肖特(te)基二(er)(er)極(ji)(ji)管(guan)(guan)(guan)是(shi)(shi)一種低壓降二(er)(er)極(ji)(ji)管(guan)(guan)(guan)，具有快速開(kai)關(guan)速度和(he)(he)較低的(de)(de)正向電(dian)壓降。它們(men)(men)通常用(yong)于高(gao)頻(pin)開(kai)關(guan)應用(yong)和(he)(he)低壓應用(yong)。5.發光(guang)二(er)(er)極(ji)(ji)管(guan)(guan)(guan)（LED）：發光(guang)二(er)(er)極(ji)(ji)管(guan)(guan)(guan)是(shi)(shi)一種特(te)殊類型(xing)的(de)(de)二(er)(er)極(ji)(ji)管(guan)(guan)(guan)，當電(dian)流(liu)通過時，它會(hui)發出光(guang)線。它們(men)(men)廣(guang)泛應用(yong)于顯示(shi)器、指示(shi)燈和(he)(he)照明設備。三社功率二(er)(er)極(ji)(ji)管(guan)(guan)(guan)PK110FG16；河(he)南西門(men)康快恢復二(er)(er)極(ji)(ji)管(guan)(guan)(guan)模塊

導通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)UD約為(wei)(wei)(wei)(wei)。在(zai)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)加(jia)有反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)(zhi)較小(xiao)(xiao)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)極(ji)(ji)(ji)(ji)(ji)小(xiao)(xiao)，其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)值(zhi)(zhi)為(wei)(wei)(wei)(wei)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)飽和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)IS。當(dang)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)超(chao)過(guo)某個(ge)值(zhi)(zhi)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)開始急劇增大，稱(cheng)之(zhi)為(wei)(wei)(wei)(wei)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)擊穿(chuan)(chuan)，稱(cheng)此電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)為(wei)(wei)(wei)(wei)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)擊穿(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，用(yong)(yong)符號(hao)UBR表示。不(bu)同型號(hao)的(de)(de)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)擊穿(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)UBR值(zhi)(zhi)差別很(hen)(hen)(hen)大，從幾十伏到幾千伏[4]。二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)特性(xing)外(wai)加(jia)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)時(shi)，在(zai)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)特性(xing)的(de)(de)起始部分(fen)，正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)很(hen)(hen)(hen)小(xiao)(xiao)，不(bu)足以(yi)克服(fu)PN結內電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)阻擋作用(yong)(yong)，正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)幾乎為(wei)(wei)(wei)(wei)零，這(zhe)(zhe)一段稱(cheng)為(wei)(wei)(wei)(wei)死區。這(zhe)(zhe)個(ge)不(bu)能使(shi)(shi)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)導通(tong)(tong)的(de)(de)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)稱(cheng)為(wei)(wei)(wei)(wei)死區電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)。[4]當(dang)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)大于死區電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)以(yi)后，PN結內電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)被克服(fu)，二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)導通(tong)(tong)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)增大而迅(xun)速上(shang)升。在(zai)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)常使(shi)(shi)用(yong)(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)范(fan)圍內，導通(tong)(tong)時(shi)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)端電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)幾乎維持不(bu)變，這(zhe)(zhe)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)稱(cheng)為(wei)(wei)(wei)(wei)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)。[4]當(dang)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)兩端的(de)(de)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)超(chao)過(guo)一定數(shu)值(zhi)(zhi)，內電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)很(hen)(hen)(hen)快被削弱，特性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)迅(xun)速增長，二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)導通(tong)(tong)。叫做門坎電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)或(huo)閾值(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，硅管(guan)(guan)(guan)(guan)(guan)(guan)約為(wei)(wei)(wei)(wei)，鍺管(guan)(guan)(guan)(guan)(guan)(guan)約為(wei)(wei)(wei)(wei)。硅二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)導通(tong)(tong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)降約為(wei)(wei)(wei)(wei)，鍺二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)正(zheng)(zheng)(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)(xiang)(xiang)(xiang)導通(tong)(tong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)降約為(wei)(wei)(wei)(wei)。[4]二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)特性(xing)外(wai)加(jia)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)不(bu)超(chao)過(guo)一定范(fan)圍時(shi)，通(tong)(tong)過(guo)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)是少(shao)數(shu)載流(liu)(liu)子漂移運動所形成反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。由于反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)很(hen)(hen)(hen)小(xiao)(xiao)，二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)處于截止狀態(tai)。這(zhe)(zhe)個(ge)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)又稱(cheng)為(wei)(wei)(wei)(wei)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)飽和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)或(huo)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。山東(dong)宏微整流(liu)(liu)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)國內經(jing)銷橋式整流(liu)(liu)二(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)經(jing)銷商找哪家MCC95-18IO1B推薦咨詢上(shang)海寅涵智(zhi)能科技。

二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)反(fan)向(xiang)(xiang)(xiang)(xiang)飽和(he)電(dian)(dian)流(liu)受溫度影響很大。3、擊穿(chuan)外(wai)(wai)加(jia)反(fan)向(xiang)(xiang)(xiang)(xiang)電(dian)(dian)壓(ya)(ya)(ya)超過某一(yi)數值(zhi)(zhi)時(shi)(shi)(shi)，反(fan)向(xiang)(xiang)(xiang)(xiang)電(dian)(dian)流(liu)會(hui)突(tu)然增大，這種(zhong)(zhong)現(xian)(xian)象稱為(wei)(wei)電(dian)(dian)擊穿(chuan)。引(yin)起(qi)(qi)(qi)電(dian)(dian)擊穿(chuan)的(de)(de)(de)(de)(de)(de)臨界電(dian)(dian)壓(ya)(ya)(ya)稱為(wei)(wei)二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)反(fan)向(xiang)(xiang)(xiang)(xiang)擊穿(chuan)電(dian)(dian)壓(ya)(ya)(ya)。電(dian)(dian)擊穿(chuan)時(shi)(shi)(shi)二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)失去單(dan)向(xiang)(xiang)(xiang)(xiang)導電(dian)(dian)性(xing)。如(ru)果二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)沒有因(yin)電(dian)(dian)擊穿(chuan)而(er)引(yin)起(qi)(qi)(qi)過熱，則單(dan)向(xiang)(xiang)(xiang)(xiang)導電(dian)(dian)性(xing)不一(yi)定(ding)(ding)會(hui)被(bei)長久破壞，在(zai)撤除外(wai)(wai)加(jia)電(dian)(dian)壓(ya)(ya)(ya)后(hou)，其性(xing)能(neng)仍(reng)可恢復，否則二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)就損壞了。因(yin)而(er)使用(yong)時(shi)(shi)(shi)應避免二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)外(wai)(wai)加(jia)的(de)(de)(de)(de)(de)(de)反(fan)向(xiang)(xiang)(xiang)(xiang)電(dian)(dian)壓(ya)(ya)(ya)過高。二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)是一(yi)種(zhong)(zhong)具(ju)有單(dan)向(xiang)(xiang)(xiang)(xiang)導電(dian)(dian)的(de)(de)(de)(de)(de)(de)二(er)(er)(er)(er)端器(qi)件，有電(dian)(dian)子二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)和(he)晶體二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)之分(fen)，電(dian)(dian)子二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)現(xian)(xian)已很少(shao)見到，比較(jiao)常(chang)(chang)見和(he)常(chang)(chang)用(yong)的(de)(de)(de)(de)(de)(de)多(duo)(duo)是晶體二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)。二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)單(dan)向(xiang)(xiang)(xiang)(xiang)導電(dian)(dian)特性(xing)，幾乎在(zai)所有的(de)(de)(de)(de)(de)(de)電(dian)(dian)子電(dian)(dian)路中，都要(yao)(yao)用(yong)到半導體二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)，它(ta)在(zai)許多(duo)(duo)的(de)(de)(de)(de)(de)(de)電(dian)(dian)路中起(qi)(qi)(qi)著(zhu)重要(yao)(yao)的(de)(de)(de)(de)(de)(de)作用(yong)，它(ta)是誕生早的(de)(de)(de)(de)(de)(de)半導體器(qi)件之一(yi)，其應用(yong)也非常(chang)(chang)廣(guang)。二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)壓(ya)(ya)(ya)降(jiang)：硅二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)（不發(fa)(fa)(fa)光類(lei)型）正向(xiang)(xiang)(xiang)(xiang)管(guan)(guan)(guan)(guan)壓(ya)(ya)(ya)降(jiang)，鍺管(guan)(guan)(guan)(guan)正向(xiang)(xiang)(xiang)(xiang)管(guan)(guan)(guan)(guan)壓(ya)(ya)(ya)降(jiang)為(wei)(wei)，發(fa)(fa)(fa)光二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)正向(xiang)(xiang)(xiang)(xiang)管(guan)(guan)(guan)(guan)壓(ya)(ya)(ya)降(jiang)會(hui)隨不同發(fa)(fa)(fa)光顏色而(er)不同。主(zhu)要(yao)(yao)有三(san)種(zhong)(zhong)顏色，具(ju)體壓(ya)(ya)(ya)降(jiang)參(can)考值(zhi)(zhi)如(ru)下：紅(hong)色發(fa)(fa)(fa)光二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)為(wei)(wei)，黃色發(fa)(fa)(fa)光二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)為(wei)(wei)—，綠(lv)色發(fa)(fa)(fa)光二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)為(wei)(wei)—，正常(chang)(chang)發(fa)(fa)(fa)光時(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)額定(ding)(ding)電(dian)(dian)流(liu)約為(wei)(wei)20mA。二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)(ya)(ya)與電(dian)(dian)流(liu)不是線性(xing)關系，所以(yi)在(zai)將不同的(de)(de)(de)(de)(de)(de)二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)并聯的(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)候要(yao)(yao)接(jie)相適應的(de)(de)(de)(de)(de)(de)電(dian)(dian)阻。[1]二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)原(yuan)理(li)二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)原(yuan)理(li)編輯二(er)(er)(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)工作原(yuan)理(li)。

圖9-403只(zhi)普通(tong)(tong)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)構成的(de)(de)(de)簡(jian)易直(zhi)(zhi)(zhi)(zhi)(zhi)流穩(wen)(wen)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)1．電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)思路(lu)(lu)(lu)說(shuo)明(ming)分(fen)析(xi)一(yi)個(ge)從沒(mei)有見過(guo)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)工作(zuo)原(yuan)理是(shi)(shi)困難(nan)的(de)(de)(de)，對基礎知識不全的(de)(de)(de)初學者而言就更加(jia)困難(nan)了。關于(yu)這一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)(de)分(fen)析(xi)思路(lu)(lu)(lu)主(zhu)要說(shuo)明(ming)如(ru)下。1）從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中可(ke)以看(kan)出(chu)3只(zhi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)串聯(lian)，根據(ju)串聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)特性可(ke)知，這3只(zhi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)如(ru)果導(dao)通(tong)(tong)會同時(shi)導(dao)通(tong)(tong)，如(ru)果截(jie)(jie)止會同時(shi)截(jie)(jie)止。2）根據(ju)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)是(shi)(shi)否導(dao)通(tong)(tong)的(de)(de)(de)判(pan)斷原(yuan)則分(fen)析(xi)，在二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)的(de)(de)(de)正(zheng)極(ji)(ji)(ji)(ji)接(jie)(jie)有比負極(ji)(ji)(ji)(ji)高得多(duo)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，無論是(shi)(shi)直(zhi)(zhi)(zhi)(zhi)(zhi)流還(huan)是(shi)(shi)交流的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，此時(shi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)均處于(yu)導(dao)通(tong)(tong)狀態。從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中可(ke)以看(kan)出(chu)，在VD1正(zheng)極(ji)(ji)(ji)(ji)通(tong)(tong)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻R1接(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中的(de)(de)(de)直(zhi)(zhi)(zhi)(zhi)(zhi)流工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)+V，VD3的(de)(de)(de)負極(ji)(ji)(ji)(ji)接(jie)(jie)地，這樣(yang)在3只(zhi)串聯(lian)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)上加(jia)有足(zu)夠大的(de)(de)(de)正(zheng)向直(zhi)(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。由此分(fen)析(xi)可(ke)知，3只(zhi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)VD1、VD2和VD3是(shi)(shi)在直(zhi)(zhi)(zhi)(zhi)(zhi)流工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)+V作(zuo)用下導(dao)通(tong)(tong)的(de)(de)(de)。3）從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中還(huan)可(ke)以看(kan)出(chu)，3只(zhi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)上沒(mei)有加(jia)入(ru)交流信號電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，因為在VD1正(zheng)極(ji)(ji)(ji)(ji)即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中的(de)(de)(de)A點(dian)與地之間(jian)接(jie)(jie)有大容量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容C1，將A點(dian)的(de)(de)(de)任何(he)交流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)旁路(lu)(lu)(lu)到地端。2．二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)能(neng)夠穩(wen)(wen)定直(zhi)(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)原(yuan)理說(shuo)明(ming)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中，3只(zhi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)在直(zhi)(zhi)(zhi)(zhi)(zhi)流工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)正(zheng)向偏置作(zuo)用下導(dao)通(tong)(tong)，導(dao)通(tong)(tong)后(hou)對這一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)(de)作(zuo)用是(shi)(shi)穩(wen)(wen)定了電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中A點(dian)的(de)(de)(de)直(zhi)(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。眾所周知，二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)內部是(shi)(shi)一(yi)個(ge)PN結(jie)的(de)(de)(de)結(jie)構，PN結(jie)除單向導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)特性之外還(huan)有許多(duo)特性，其中之一(yi)是(shi)(shi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)導(dao)通(tong)(tong)后(hou)其管(guan)(guan)壓(ya)(ya)降基本不變。上海寅(yin)涵智能(neng)科(ke)技專業供應(ying)IXYS艾賽斯MUBW36-12E7；

為(wei)了實現這(zhe)一點(dian)，作(zuo)為(wei)示例，傳導(dao)(dao)層(ceng)(ceng)40覆(fu)蓋(gai)襯(chen)底20和(he)(he)(he)溝(gou)槽22。層(ceng)(ceng)40例如(ru)由(you)鋁(lv)、鋁(lv)-銅或(huo)鋁(lv)-硅(gui)(gui)-銅制(zhi)(zhi)成(cheng)。層(ceng)(ceng)40可(ke)(ke)(ke)以(yi)(yi)布(bu)置在(zai)傳導(dao)(dao)界面(mian)層(ceng)(ceng)42上。區(qu)(qu)域302在(zai)溝(gou)槽中從層(ceng)(ceng)40或(huo)可(ke)(ke)(ke)能的(de)(de)界面(mian)層(ceng)(ceng)42延(yan)伸。層(ceng)(ceng)42例如(ru)旨在(zai)便于(yu)(yu)在(zai)層(ceng)(ceng)40和(he)(he)(he)區(qu)(qu)域302、204、210以(yi)(yi)及(ji)可(ke)(ke)(ke)能的(de)(de)區(qu)(qu)域306之(zhi)(zhi)間(jian)形成(cheng)電接觸件(下(xia)面(mian)的(de)(de)圖(tu)2a至(zhi)圖(tu)2f的(de)(de)方法)。層(ceng)(ceng)42可(ke)(ke)(ke)以(yi)(yi)由(you)硅(gui)(gui)化物(wu)(wu)制(zhi)(zhi)成(cheng)或(huo)者可(ke)(ke)(ke)以(yi)(yi)是(shi)例如(ru)由(you)鈦制(zhi)(zhi)成(cheng)的(de)(de)金(jin)屬層(ceng)(ceng)。層(ceng)(ceng)42可(ke)(ke)(ke)以(yi)(yi)備選(xuan)地(di)包括(kuo)硅(gui)(gui)化物(wu)(wu)層(ceng)(ceng)和(he)(he)(he)金(jin)屬層(ceng)(ceng)，金(jin)屬層(ceng)(ceng)覆(fu)蓋(gai)硅(gui)(gui)化物(wu)(wu)層(ceng)(ceng)并且(qie)例如(ru)由(you)鈦制(zhi)(zhi)成(cheng)。硅(gui)(gui)化物(wu)(wu)因此形成(cheng)電接觸件，而金(jin)屬層(ceng)(ceng)提供(gong)對(dui)層(ceng)(ceng)40的(de)(de)粘附。層(ceng)(ceng)42可(ke)(ke)(ke)以(yi)(yi)至(zhi)少部(bu)分(fen)地(di)通(tong)過自對(dui)準硅(gui)(gui)化工藝來(lai)(lai)獲(huo)得，并且(qie)硅(gui)(gui)化物(wu)(wu)然后是(shi)不連續的(de)(de)并且(qie)不覆(fu)蓋(gai)層(ceng)(ceng)304的(de)(de)上部(bu)部(bu)分(fen)。層(ceng)(ceng)42的(de)(de)厚度(du)(du)推(tui)(tui)薦(jian)地(di)小于(yu)(yu)300nm，例如(ru)小于(yu)(yu)100nm。由(you)于(yu)(yu)區(qu)(qu)域302和(he)(he)(he)溝(gou)道(dao)區(qu)(qu)域202通(tong)過上述短距離(li)d分(fen)離(li)的(de)(de)事實，可(ke)(ke)(ke)以(yi)(yi)選(xuan)擇溝(gou)道(dao)區(qu)(qu)域202的(de)(de)摻(chan)雜水平(ping)以(yi)(yi)及(ji)區(qu)(qu)域302的(de)(de)摻(chan)雜類(lei)型和(he)(he)(he)水平(ping)來(lai)(lai)獲(huo)得二極(ji)管的(de)(de)飽(bao)和(he)(he)(he)電流(liu)密(mi)度(du)(du)，其(qi)在(zai)25℃時(shi)例如(ru)在(zai)1na/mm2和(he)(he)(he)1ma/mm2之(zhi)(zhi)間(jian)。推(tui)(tui)薦(jian)地(di)，區(qu)(qu)域202的(de)(de)摻(chan)雜水平(ping)在(zai)2×1016和(he)(he)(he)1018原(yuan)子/cm3之(zhi)(zhi)間(jian)。為(wei)了獲(huo)得該飽(bao)和(he)(he)(he)電流(liu)密(mi)度(du)(du)，區(qu)(qu)域302是(shi)重n型摻(chan)雜的(de)(de)(例如(ru)大于(yu)(yu)5×1018原(yuan)子/cm3)，或(huo)者更(geng)一般地(di)通(tong)過與溝(gou)道(dao)區(qu)(qu)域202的(de)(de)傳導(dao)(dao)類(lei)型相反的(de)(de)傳導(dao)(dao)類(lei)型來(lai)(lai)被重摻(chan)雜。電流(liu)密(mi)度(du)(du)飽(bao)和(he)(he)(he)度(du)(du)在(zai)此由(you)以(yi)(yi)下(xia)來(lai)(lai)確定：a)測(ce)量由(you)大于(yu)(yu)。上海寅(yin)涵智(zhi)能科技是(shi)艾(ai)賽斯(si)可(ke)(ke)(ke)控(kong)硅(gui)(gui)二極(ji)管專業進口廠(chang)商，種類(lei)齊全，價格優惠。江西(xi)西(xi)門康快恢復二極(ji)管庫存充足

上海(hai)寅涵智能科技經(jing)銷各(ge)類型號西(xi)門康二(er)極管(guan)SKKT162-16E歡迎(ying)聯系購買(mai)。河南西(xi)門康快恢復二(er)極管(guan)模塊

半(ban)導(dao)(dao)體(ti)(ti)(ti)二(er)極(ji)(ji)管(guan)(guan)(guan)的主(zhu)要(yao)特(te)點是(shi)(shi)具有摻雜(za)性(xing)，熱(re)敏(min)性(xing)，光(guang)敏(min)性(xing)。1、摻雜(za)性(xing)，當(dang)往純凈的半(ban)導(dao)(dao)體(ti)(ti)(ti)中(zhong)摻入煤些(xie)物質時，導(dao)(dao)體(ti)(ti)(ti)的導(dao)(dao)電(dian)(dian)性(xing)會增(zeng)強(qiang)。二(er)極(ji)(ji)管(guan)(guan)(guan)、三極(ji)(ji)管(guan)(guan)(guan)就是(shi)(shi)摻入雜(za)質的半(ban)導(dao)(dao)體(ti)(ti)(ti)制(zhi)成(cheng)(cheng)(cheng)的。2、熱(re)敏(min)性(xing)，當(dang)溫渡上(shang)升時，導(dao)(dao)體(ti)(ti)(ti)的導(dao)(dao)電(dian)(dian)能力會增(zeng)強(qiang)。利(li)用該特(te)性(xing)可(ke)(ke)以(yi)將(jiang)某些(xie)半(ban)導(dao)(dao)體(ti)(ti)(ti)制(zhi)成(cheng)(cheng)(cheng)熱(re)敏(min)器件。3、光(guang)敏(min)性(xing)，當(dang)有光(guang)線照(zhao)射半(ban)導(dao)(dao)體(ti)(ti)(ti)時，半(ban)導(dao)(dao)體(ti)(ti)(ti)的導(dao)(dao)電(dian)(dian)能力也會增(zeng)強(qiang)。利(li)用該特(te)性(xing)可(ke)(ke)以(yi)將(jiang)某些(xie)半(ban)導(dao)(dao)體(ti)(ti)(ti)制(zhi)成(cheng)(cheng)(cheng)光(guang)敏(min)器件。二(er)極(ji)(ji)管(guan)(guan)(guan)是(shi)(shi)早誕(dan)生的半(ban)導(dao)(dao)體(ti)(ti)(ti)器件之一，其應(ying)用非(fei)常廣。特(te)別是(shi)(shi)在各種(zhong)電(dian)(dian)子(zi)電(dian)(dian)路中(zhong)，利(li)用二(er)極(ji)(ji)管(guan)(guan)(guan)和(he)電(dian)(dian)阻、電(dian)(dian)容、電(dian)(dian)感等元器件進行合理的連接，構(gou)成(cheng)(cheng)(cheng)不同功能的電(dian)(dian)路，可(ke)(ke)以(yi)實(shi)現(xian)對交流電(dian)(dian)整(zheng)流、對調制(zhi)信號檢(jian)波、限幅和(he)鉗位以(yi)及對電(dian)(dian)源電(dian)(dian)壓的穩(wen)壓等多種(zhong)功能。河南西(xi)門康快恢復二(er)極(ji)(ji)管(guan)(guan)(guan)模(mo)塊

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