它是(shi)用(yong)(yong)來(lai)讓信號在(zai)預置(zhi)的(de)電(dian)(dian)(dian)(dian)平范圍內，有(you)選擇地(di)傳輸一部分信號。大多(duo)數二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)都(dou)可作(zuo)為限(xian)幅使(shi)用(yong)(yong)，但有(you)些時(shi)候需要(yao)用(yong)(yong)到專門(men)限(xian)幅二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)，如保護儀表時(shi)。[6]（3）穩壓(ya)電(dian)(dian)(dian)(dian)路在(zai)穩壓(ya)電(dian)(dian)(dian)(dian)路中(zhong)通(tong)常需要(yao)使(shi)用(yong)(yong)齊納二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)，它是(shi)一種(zhong)(zhong)利用(yong)(yong)特(te)殊工藝制(zhi)造的(de)面(mian)結(jie)型硅(gui)把(ba)半(ban)導(dao)體二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)，這(zhe)種(zhong)(zhong)特(te)殊二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)雜質濃度(du)比(bi)較(jiao)高，空間電(dian)(dian)(dian)(dian)荷(he)區內的(de)電(dian)(dian)(dian)(dian)荷(he)密(mi)度(du)大，容易形成強(qiang)電(dian)(dian)(dian)(dian)場(chang)。當齊納二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)兩(liang)端反向電(dian)(dian)(dian)(dian)壓(ya)加到某一值(zhi)，反向電(dian)(dian)(dian)(dian)流急增(zeng)，產生反向擊穿。[6]（4）變(bian)容電(dian)(dian)(dian)(dian)路在(zai)變(bian)容電(dian)(dian)(dian)(dian)路中(zhong)常用(yong)(yong)變(bian)容二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)來(lai)實(shi)現電(dian)(dian)(dian)(dian)路的(de)自(zi)動頻(pin)率控制(zhi)、調(diao)諧、調(diao)頻(pin)以及(ji)掃描振蕩等。[6]二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)工業產品(pin)應(ying)(ying)用(yong)(yong)經過多(duo)年來(lai)科學家(jia)們不(bu)懈努力(li)，半(ban)導(dao)體二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)發光(guang)(guang)(guang)(guang)的(de)應(ying)(ying)用(yong)(yong)已逐步(bu)得(de)到推廣(guang)，發光(guang)(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)廣(guang)應(ying)(ying)用(yong)(yong)于(yu)各種(zhong)(zhong)電(dian)(dian)(dian)(dian)子產品(pin)的(de)指示(shi)燈、光(guang)(guang)(guang)(guang)纖通(tong)信用(yong)(yong)光(guang)(guang)(guang)(guang)源、各種(zhong)(zhong)儀表的(de)指示(shi)器以及(ji)照(zhao)明(ming)。發光(guang)(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)的(de)很(hen)(hen)多(duo)特(te)性是(shi)普(pu)通(tong)發光(guang)(guang)(guang)(guang)器件所(suo)無法比(bi)擬(ni)的(de)，主(zhu)要(yao)具有(you)特(te)點(dian)(dian)有(you)：安全、高效(xiao)率、環保、壽(shou)命(ming)長、響應(ying)(ying)快、體積小、結(jie)構牢固。因此，發光(guang)(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)是(shi)一種(zhong)(zhong)符合綠色照(zhao)明(ming)要(yao)求的(de)光(guang)(guang)(guang)(guang)源。[6]發光(guang)(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)在(zai)很(hen)(hen)多(duo)領域(yu)得(de)到普(pu)遍應(ying)(ying)用(yong)(yong)，下(xia)面(mian)介紹幾點(dian)(dian)其主(zhu)要(yao)應(ying)(ying)用(yong)(yong)：（1）電(dian)(dian)(dian)(dian)子用(yong)(yong)品(pin)中(zhong)的(de)應(ying)(ying)用(yong)(yong)發光(guang)(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)在(zai)電(dian)(dian)(dian)(dian)子用(yong)(yong)品(pin)中(zhong)一般用(yong)(yong)作(zuo)屏(ping)背(bei)光(guang)(guang)(guang)(guang)源或作(zuo)顯示(shi)、照(zhao)明(ming)應(ying)(ying)用(yong)(yong)。美(mei)高森美(mei)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)經銷商找(zhao)哪(na)家(jia)，推薦咨詢上海寅涵智能科技(ji)。黑龍(long)江整流二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)代(dai)理(li)貨源

正(zheng)(zheng)向(xiang)(xiang)(xiang)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，反(fan)向(xiang)(xiang)(xiang)不導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)）晶(jing)體(ti)二(er)極(ji)管是(shi)一個由(you)p型半導(dao)(dao)體(ti)和n型半導(dao)(dao)體(ti)形(xing)(xing)成的(de)p-n結(jie)，在(zai)其界(jie)面處兩側形(xing)(xing)成了空(kong)間(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)層，并且建(jian)有(you)自(zi)(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)，當(dang)不存在(zai)外加電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時(shi)(shi)(shi)，因(yin)為p-n結(jie)兩邊載(zai)流(liu)(liu)子(zi)濃度(du)(du)差引起(qi)的(de)擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)和自(zi)(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)引起(qi)的(de)漂移(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)相(xiang)等而處于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)平衡狀態(tai)。當(dang)產(chan)(chan)生(sheng)正(zheng)(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)偏置時(shi)(shi)(shi)，外界(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)與(yu)自(zi)(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)互(hu)相(xiang)抑消作用使載(zai)流(liu)(liu)子(zi)的(de)擴(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)增加引起(qi)了正(zheng)(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)（也就(jiu)是(shi)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)原因(yin)）。當(dang)產(chan)(chan)生(sheng)反(fan)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)偏置時(shi)(shi)(shi)，外界(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)與(yu)自(zi)(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)進一步加強，形(xing)(xing)成在(zai)一定(ding)反(fan)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)范圍中與(yu)反(fan)向(xiang)(xiang)(xiang)偏置電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值無(wu)關的(de)反(fan)向(xiang)(xiang)(xiang)飽(bao)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)I0（這也就(jiu)是(shi)不導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)原因(yin)）。當(dang)外加的(de)反(fan)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)高到(dao)一定(ding)程(cheng)度(du)(du)時(shi)(shi)(shi)，p-n結(jie)空(kong)間(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)層中的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)強度(du)(du)達到(dao)臨界(jie)值產(chan)(chan)生(sheng)載(zai)流(liu)(liu)子(zi)的(de)倍增過程(cheng)，產(chan)(chan)生(sheng)大(da)(da)(da)量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)空(kong)穴(xue)對(dui)，產(chan)(chan)生(sheng)了數值很大(da)(da)(da)的(de)反(fan)向(xiang)(xiang)(xiang)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，稱為二(er)極(ji)管的(de)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)現象。二(er)極(ji)管原理反(fan)向(xiang)(xiang)(xiang)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)編(bian)輯(ji)反(fan)向(xiang)(xiang)(xiang)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)按機理分為齊納擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)和雪(xue)(xue)崩(beng)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)兩種(zhong)(zhong)情(qing)況。在(zai)高摻雜(za)(za)濃度(du)(du)的(de)情(qing)況下，因(yin)勢(shi)(shi)(shi)壘區寬度(du)(du)很小(xiao)，反(fan)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)較大(da)(da)(da)時(shi)(shi)(shi)，破壞了勢(shi)(shi)(shi)壘區內(nei)共(gong)價鍵結(jie)構，使價電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)脫(tuo)離共(gong)價鍵束(shu)縛(fu)，產(chan)(chan)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)-空(kong)穴(xue)對(dui)，致(zhi)使電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)急劇增大(da)(da)(da)，這種(zhong)(zhong)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)稱為齊納擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)。如果(guo)摻雜(za)(za)濃度(du)(du)較低(di)，勢(shi)(shi)(shi)壘區寬度(du)(du)較寬，不容易產(chan)(chan)生(sheng)齊納擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)。雪(xue)(xue)崩(beng)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)另(ling)一種(zhong)(zhong)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)為雪(xue)(xue)崩(beng)擊(ji)(ji)(ji)穿(chuan)(chuan)(chuan)(chuan)。當(dang)反(fan)向(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)增加到(dao)較大(da)(da)(da)數值時(shi)(shi)(shi)。天津Microsemi美高森美二(er)極(ji)管國內(nei)經銷上海寅(yin)涵(han)智能科技專(zhuan)業供應橋(qiao)式整流(liu)(liu)二(er)極(ji)管PWB130AA40歡迎(ying)咨(zi)詢(xun)。

所(suo)以(yi)依據這(zhe)一(yi)(yi)(yi)(yi)點可以(yi)確定(ding)這(zhe)一(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)是為(wei)了(le)穩(wen)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)(zhong)(zhong)A點的(de)(de)(de)(de)(de)直流(liu)工(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。3）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)(zhong)(zhong)有多(duo)(duo)只元(yuan)(yuan)器(qi)(qi)(qi)件(jian)時，一(yi)(yi)(yi)(yi)定(ding)要(yao)設法搞(gao)清楚實(shi)現電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)功能的(de)(de)(de)(de)(de)主(zhu)要(yao)元(yuan)(yuan)器(qi)(qi)(qi)件(jian)，然(ran)后(hou)圍(wei)繞它進(jin)行展(zhan)開分(fen)(fen)(fen)析(xi)(xi)(xi)。分(fen)(fen)(fen)析(xi)(xi)(xi)中(zhong)(zhong)(zhong)運用該(gai)元(yuan)(yuan)器(qi)(qi)(qi)件(jian)主(zhu)要(yao)特(te)(te)性，進(jin)行合理(li)(li)解(jie)釋(shi)。二極(ji)(ji)管溫(wen)度(du)(du)補(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)及故障處理(li)(li)眾所(suo)周知(zhi)，PN結導通后(hou)有一(yi)(yi)(yi)(yi)個約為(wei)（指(zhi)硅(gui)材料PN結）的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)(jiang)，同時PN結還(huan)有一(yi)(yi)(yi)(yi)個與溫(wen)度(du)(du)相關的(de)(de)(de)(de)(de)特(te)(te)性：PN結導通后(hou)的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)(jiang)基本不(bu)變，但不(bu)是不(bu)變，PN結兩端的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)降(jiang)(jiang)隨(sui)溫(wen)度(du)(du)升高而略有下(xia)降(jiang)(jiang)，溫(wen)度(du)(du)愈高其下(xia)降(jiang)(jiang)的(de)(de)(de)(de)(de)量(liang)愈多(duo)(duo)，當然(ran)PN結兩端電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)下(xia)降(jiang)(jiang)量(liang)的(de)(de)(de)(de)(de)值對(dui)(dui)于，利用這(zhe)一(yi)(yi)(yi)(yi)特(te)(te)性可以(yi)構(gou)成溫(wen)度(du)(du)補(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。如圖9-42所(suo)示是利用二極(ji)(ji)管溫(wen)度(du)(du)特(te)(te)性構(gou)成的(de)(de)(de)(de)(de)溫(wen)度(du)(du)補(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。圖9-42二極(ji)(ji)管溫(wen)度(du)(du)補(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)對(dui)(dui)于初學者(zhe)來講，看不(bu)懂電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)(zhong)(zhong)VT1等(deng)元(yuan)(yuan)器(qi)(qi)(qi)件(jian)構(gou)成的(de)(de)(de)(de)(de)是一(yi)(yi)(yi)(yi)種放大器(qi)(qi)(qi)，這(zhe)對(dui)(dui)分(fen)(fen)(fen)析(xi)(xi)(xi)這(zhe)一(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)工(gong)(gong)作原(yuan)理(li)(li)不(bu)利。在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)分(fen)(fen)(fen)析(xi)(xi)(xi)中(zhong)(zhong)(zhong)，熟悉VT1等(deng)元(yuan)(yuan)器(qi)(qi)(qi)件(jian)所(suo)構(gou)成的(de)(de)(de)(de)(de)單元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)功能，對(dui)(dui)分(fen)(fen)(fen)析(xi)(xi)(xi)VD1工(gong)(gong)作原(yuan)理(li)(li)有著積極(ji)(ji)意義(yi)。了(le)解(jie)了(le)單元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)(de)功能，一(yi)(yi)(yi)(yi)切電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)分(fen)(fen)(fen)析(xi)(xi)(xi)就可以(yi)圍(wei)繞它進(jin)行展(zhan)開，做(zuo)到有的(de)(de)(de)(de)(de)放矢、事半(ban)功倍(bei)。1．需要(yao)了(le)解(jie)的(de)(de)(de)(de)(de)深(shen)(shen)層次電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)工(gong)(gong)作原(yuan)理(li)(li)分(fen)(fen)(fen)析(xi)(xi)(xi)這(zhe)一(yi)(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)工(gong)(gong)作原(yuan)理(li)(li)需要(yao)了(le)解(jie)下(xia)列兩個深(shen)(shen)層次的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)原(yuan)理(li)(li)。1）VT1等(deng)構(gou)成一(yi)(yi)(yi)(yi)種放大器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，對(dui)(dui)于放大器(qi)(qi)(qi)而言要(yao)求它的(de)(de)(de)(de)(de)工(gong)(gong)作穩(wen)定(ding)性好。

二(er)極管(guan)正負極判斷方(fang)法(fa)如下：

1、對于普通二(er)極管(guan)，可以看管(guan)體表面，有白線的一端為負極。

2、對于(yu)發光二極(ji)管，引腳長的為正極(ji)，短的為負極(ji)。

3、如果引腳被剪得一樣(yang)長了，發光二(er)極(ji)管(guan)管(guan)體內部金屬極(ji)較(jiao)小的是(shi)正極(ji)，大的片狀的是(shi)負極(ji)。

4、如果看不清，也可打開萬用表，將(jiang)旋鈕撥到通斷(duan)檔(dang)，將(jiang)紅黑表筆(bi)(bi)分別接(jie)在兩(liang)個引(yin)腳。若有(you)讀數，則(ze)紅表筆(bi)(bi)一端為正(zheng)(zheng)(zheng)極(ji)(ji)，若讀數為1，則(ze)黑表筆(bi)(bi)一端為正(zheng)(zheng)(zheng)極(ji)(ji)。二(er)極(ji)(ji)管(guan)是(shi)用半(ban)導(dao)(dao)體材(cai)料（硅、硒、鍺等）制成(cheng)的一種電子器件(jian)，它具有(you)單向(xiang)導(dao)(dao)電性能，即給(gei)二(er)極(ji)(ji)管(guan)陽極(ji)(ji)加(jia)上正(zheng)(zheng)(zheng)向(xiang)電壓時，二(er)極(ji)(ji)管(guan)導(dao)(dao)通。當給(gei)陽極(ji)(ji)和陰極(ji)(ji)加(jia)上反向(xiang)電壓時，二(er)極(ji)(ji)管(guan)截(jie)止。

因此，二極(ji)管(guan)的(de)導(dao)通(tong)(tong)和截(jie)止，則(ze)相當(dang)于開(kai)關的(de)接通(tong)(tong)與斷開(kai)。二極(ji)管(guan)結構構成(cheng)二極(ji)管(guan)就是(shi)由一個PN結加上相應的(de)電(dian)極(ji)引線及管(guan)殼封(feng)裝而成(cheng)的(de)，采用(yong)(yong)不同(tong)的(de)摻雜工藝(yi)。通(tong)(tong)過擴(kuo)散作用(yong)(yong)，將P型半導(dao)體與N型半導(dao)體制作在(zai)同(tong)一塊半導(dao)體（通(tong)(tong)常是(shi)硅(gui)或鍺(zang)）基片上，在(zai)它們的(de)交(jiao)界面就形成(cheng)空間電(dian)荷區稱為PN結。上海寅涵智能科技是(shi)艾賽斯可控(kong)硅(gui)二極(ji)管(guan)專業進口廠(chang)商，種類齊全(quan)，價格優惠。

二極管是什么類型？

二(er)極(ji)管(guan)是(shi)一種(zhong)電子元件，它(ta)具有兩種(zhong)工作(zuo)狀態：正(zheng)(zheng)向(xiang)偏(pian)置(zhi)和反(fan)向(xiang)偏(pian)置(zhi)。在正(zheng)(zheng)向(xiang)偏(pian)置(zhi)狀態下，二(er)極(ji)管(guan)允許電流(liu)(liu)通(tong)(tong)過；而在反(fan)向(xiang)偏(pian)置(zhi)狀態下，二(er)極(ji)管(guan)阻止電流(liu)(liu)通(tong)(tong)過。這種(zhong)單(dan)向(xiang)導電特性使得二(er)極(ji)管(guan)成為電子電路中的基(ji)本構(gou)建模(mo)塊之(zhi)一。

二極管有多種類(lei)型，以下是一些常(chang)見的(de)二極管類(lei)型：

1.整(zheng)流(liu)(liu)(liu)二極(ji)管(guan)：這類二極(ji)管(guan)主要用于整(zheng)流(liu)(liu)(liu)，即將交流(liu)(liu)(liu)電（AC）轉(zhuan)換為(wei)直流(liu)(liu)(liu)電（DC）。

2.齊(qi)(qi)納(na)二(er)(er)極(ji)(ji)(ji)管：齊(qi)(qi)納(na)二(er)(er)極(ji)(ji)(ji)管是(shi)一種限(xian)壓二(er)(er)極(ji)(ji)(ji)管，用(yong)于穩定電壓。當(dang)施加在二(er)(er)極(ji)(ji)(ji)管兩端(duan)的電壓達到某一特(te)定值時，齊(qi)(qi)納(na)二(er)(er)極(ji)(ji)(ji)管將開始導通。

3.開關(guan)(guan)(guan)二(er)(er)極管：開關(guan)(guan)(guan)二(er)(er)極管是一種高(gao)速(su)開關(guan)(guan)(guan)元件，用(yong)于高(gao)速(su)開關(guan)(guan)(guan)應用(yong)。它們具有較低(di)的電容和快(kuai)速(su)的開關(guan)(guan)(guan)速(su)度，適合高(gao)頻應用(yong)。

4.肖特基二(er)極(ji)管(guan)(guan)：肖特基二(er)極(ji)管(guan)(guan)是(shi)一(yi)種低壓(ya)降二(er)極(ji)管(guan)(guan)，具有快(kuai)速開(kai)關(guan)速度和(he)(he)較低的(de)正向(xiang)電(dian)壓(ya)降。它們通(tong)常用于高頻開(kai)關(guan)應用和(he)(he)低壓(ya)應用。5.發光二(er)極(ji)管(guan)(guan)（LED）：發光二(er)極(ji)管(guan)(guan)是(shi)一(yi)種特殊類型的(de)二(er)極(ji)管(guan)(guan)，當(dang)電(dian)流通(tong)過時，它會(hui)發出(chu)光線。它們廣泛應用于顯示器、指(zhi)示燈和(he)(he)照明設備(bei)。硅功率開(kai)關(guan)二(er)極(ji)管(guan)(guan)經銷商找哪家，推薦咨詢(xun)上海寅涵(han)智能科技。寧夏semikron西門康二(er)極(ji)管(guan)(guan)半導體模塊

上(shang)海(hai)寅涵(han)智能科技經銷各(ge)類型號艾賽斯(si)二極(ji)管(guan)，歡迎(ying)聯系(xi)購買。黑(hei)龍(long)江整流二極(ji)管(guan)代理貨源(yuan)

所(suo)(suo)(suo)以它在(zai)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時會產(chan)生(sheng)(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓很(hen)大(da)的(de)(de)(de)反向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)勢，會擊穿繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)驅(qu)動(dong)(dong)(dong)(dong)三極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)，為此要(yao)在(zai)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)驅(qu)動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)(zhong)(zhong)設置二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)保(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)，以保(bao)(bao)護(hu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)驅(qu)動(dong)(dong)(dong)(dong)管(guan)(guan)(guan)(guan)(guan)(guan)。如圖9-53所(suo)(suo)(suo)示(shi)(shi)(shi)是(shi)(shi)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)驅(qu)動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)保(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)J1是(shi)(shi)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，VD1是(shi)(shi)驅(qu)動(dong)(dong)(dong)(dong)管(guan)(guan)(guan)(guan)(guan)(guan)VT1的(de)(de)(de)保(bao)(bao)護(hu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)，R1和(he)C1構(gou)成(cheng)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)內部(bu)開關觸(chu)點(dian)的(de)(de)(de)消火花(hua)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)。1．電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)工作原(yuan)理分析(xi)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)內部(bu)有一組線(xian)圈(quan)，如圖9-54所(suo)(suo)(suo)示(shi)(shi)(shi)是(shi)(shi)等效電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)，在(zai)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)前(qian)，流(liu)(liu)過(guo)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)線(xian)圈(quan)L1的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向為從上(shang)而(er)下，在(zai)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)后線(xian)圈(quan)產(chan)生(sheng)(sheng)反向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)勢阻礙這(zhe)一電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)變化，即產(chan)生(sheng)(sheng)一個從上(shang)而(er)過(guo)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，見圖中(zhong)(zhong)(zhong)(zhong)虛線(xian)所(suo)(suo)(suo)示(shi)(shi)(shi)。根據前(qian)面介紹(shao)的(de)(de)(de)線(xian)圈(quan)兩端反向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)勢判(pan)(pan)別方(fang)(fang)(fang)法(fa)(fa)可知，反向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)勢在(zai)線(xian)圈(quan)L1上(shang)的(de)(de)(de)極(ji)(ji)(ji)性為下正上(shang)負，見圖中(zhong)(zhong)(zhong)(zhong)所(suo)(suo)(suo)示(shi)(shi)(shi)。如表9-44所(suo)(suo)(suo)示(shi)(shi)(shi)是(shi)(shi)這(zhe)一電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)(zhong)(zhong)保(bao)(bao)護(hu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)工作原(yuan)理說(shuo)(shuo)明(ming)。表9-44保(bao)(bao)護(hu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)工作原(yuan)理說(shuo)(shuo)明(ming)2．故(gu)障檢測(ce)方(fang)(fang)(fang)法(fa)(fa)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)故(gu)障分析(xi)對于這(zhe)一電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)保(bao)(bao)護(hu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)不(bu)能(neng)采(cai)用(yong)(yong)測(ce)量(liang)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)兩端直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓降的(de)(de)(de)方(fang)(fang)(fang)法(fa)(fa)來(lai)判(pan)(pan)斷(duan)檢測(ce)故(gu)障，也不(bu)能(neng)采(cai)用(yong)(yong)在(zai)路(lu)(lu)(lu)(lu)測(ce)量(liang)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)正向和(he)反向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻的(de)(de)(de)方(fang)(fang)(fang)法(fa)(fa)，因(yin)為這(zhe)一二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)兩端并聯著(zhu)繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)線(xian)圈(quan)，這(zhe)圈(quan)的(de)(de)(de)直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻很(hen)小，所(suo)(suo)(suo)以無法(fa)(fa)通(tong)過(guo)測(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓降的(de)(de)(de)方(fang)(fang)(fang)法(fa)(fa)來(lai)判(pan)(pan)斷(duan)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)質量(liang)。應(ying)該采(cai)用(yong)(yong)代(dai)替檢查(cha)的(de)(de)(de)方(fang)(fang)(fang)法(fa)(fa)。當保(bao)(bao)護(hu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)開路(lu)(lu)(lu)(lu)時，對繼(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)工作狀態沒有大(da)的(de)(de)(de)影響。黑龍(long)江整流(liu)(liu)二(er)(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)代(dai)理貨源

本文來自四川精(jing)碳偉業環保科技(ji)有(you)限責(ze)任公司：//wasul.cn/Article/93f9599811.html