二(er)極(ji)(ji)(ji)管是一(yi)種(zhong)(zhong)半導(dao)體器(qi)(qi)件，具有單(dan)向(xiang)導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)能(neng)(neng)。它(ta)適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)的(de)(de)(de)(de)(de)(de)整(zheng)流(liu)、穩(wen)壓、開(kai)關(guan)等(deng)功能(neng)(neng)，是電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)工(gong)業中(zhong)不可(ke)(ke)或缺的(de)(de)(de)(de)(de)(de)重要(yao)(yao)組成部分。二(er)極(ji)(ji)(ji)管適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)的(de)(de)(de)(de)(de)(de)整(zheng)流(liu)和(he)濾波功能(neng)(neng)。它(ta)可(ke)(ke)以(yi)將交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)轉換(huan)為(wei)(wei)(wei)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)，并通(tong)(tong)過(guo)(guo)濾波電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)去(qu)除電(dian)(dian)(dian)(dian)(dian)(dian)源中(zhong)的(de)(de)(de)(de)(de)(de)雜(za)波和(he)噪聲，為(wei)(wei)(wei)后續電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)提(ti)供(gong)穩(wen)定(ding)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源。二(er)極(ji)(ji)(ji)管適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)設(she)(she)備中(zhong)的(de)(de)(de)(de)(de)(de)穩(wen)壓功能(neng)(neng)。它(ta)可(ke)(ke)以(yi)通(tong)(tong)過(guo)(guo)反(fan)(fan)向(xiang)擊穿的(de)(de)(de)(de)(de)(de)方式(shi)(shi)(shi)，將電(dian)(dian)(dian)(dian)(dian)(dian)壓穩(wen)定(ding)在一(yi)定(ding)范圍內，保證電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)正常工(gong)作(zuo)和(he)穩(wen)定(ding)性(xing)。二(er)極(ji)(ji)(ji)管適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)設(she)(she)備中(zhong)的(de)(de)(de)(de)(de)(de)開(kai)關(guan)功能(neng)(neng)。它(ta)可(ke)(ke)以(yi)通(tong)(tong)過(guo)(guo)正向(xiang)導(dao)通(tong)(tong)和(he)反(fan)(fan)向(xiang)截(jie)止的(de)(de)(de)(de)(de)(de)方式(shi)(shi)(shi)，實(shi)現(xian)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)開(kai)關(guan)控制(zhi)，為(wei)(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)設(she)(she)備提(ti)供(gong)靈活的(de)(de)(de)(de)(de)(de)控制(zhi)和(he)調(diao)節功能(neng)(neng)。二(er)極(ji)(ji)(ji)管適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件中(zhong)的(de)(de)(de)(de)(de)(de)檢(jian)(jian)測(ce)和(he)轉換(huan)功能(neng)(neng)。它(ta)可(ke)(ke)以(yi)將光(guang)信(xin)號轉換(huan)為(wei)(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)號，并通(tong)(tong)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)進行檢(jian)(jian)測(ce)和(he)處理，為(wei)(wei)(wei)光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件的(de)(de)(de)(de)(de)(de)應(ying)用(yong)提(ti)供(gong)重要(yao)(yao)的(de)(de)(de)(de)(de)(de)支(zhi)持(chi)和(he)保障。二(er)極(ji)(ji)(ji)管適(shi)(shi)用(yong)于(yu)(yu)各(ge)種(zhong)(zhong)通(tong)(tong)信(xin)設(she)(she)備中(zhong)的(de)(de)(de)(de)(de)(de)信(xin)號處理和(he)調(diao)制(zhi)功能(neng)(neng)。它(ta)可(ke)(ke)以(yi)通(tong)(tong)過(guo)(guo)正向(xiang)導(dao)通(tong)(tong)和(he)反(fan)(fan)向(xiang)截(jie)止的(de)(de)(de)(de)(de)(de)方式(shi)(shi)(shi)，實(shi)現(xian)信(xin)號的(de)(de)(de)(de)(de)(de)調(diao)制(zhi)和(he)解調(diao)，為(wei)(wei)(wei)通(tong)(tong)信(xin)設(she)(she)備的(de)(de)(de)(de)(de)(de)應(ying)用(yong)提(ti)供(gong)重要(yao)(yao)的(de)(de)(de)(de)(de)(de)支(zhi)持(chi)和(he)保障。車規級TVS二(er)極(ji)(ji)(ji)管廠(chang)家就(jiu)找成都長九電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)科技有限公司。西藏車規級TVS二(er)極(ji)(ji)(ji)管供(gong)應(ying)商地址

關于上(shang)述二極(ji)(ji)管(guan)(guan)簡易(yi)直流電壓(ya)(ya)(ya)穩(wen)壓(ya)(ya)(ya)電路分(fen)析(xi)細節說明(ming)如下(xia)。（1）在電路分(fen)析(xi)中(zhong)(zhong)(zhong)，利用(yong)(yong)二極(ji)(ji)管(guan)(guan)的(de)單(dan)向導(dao)(dao)電性可以知道二極(ji)(ji)管(guan)(guan)處于導(dao)(dao)通狀態，但是(shi)并不能說明(ming)這幾只(zhi)二極(ji)(ji)管(guan)(guan)導(dao)(dao)通后(hou)對電路有(you)什么具體作(zuo)用(yong)(yong)，所以只(zhi)利用(yong)(yong)單(dan)向導(dao)(dao)電特性還不能夠正確(que)分(fen)析(xi)電路工作(zuo)原理。（2）二極(ji)(ji)管(guan)(guan)眾多(duo)(duo)的(de)特性中(zhong)(zhong)(zhong)只(zhi)有(you)導(dao)(dao)通后(hou)管(guan)(guan)壓(ya)(ya)(ya)降基本(ben)不變(bian)這一特性能夠為(wei)合理地解(jie)釋(shi)這一電路的(de)作(zuo)用(yong)(yong)，所以依據這一點可以確(que)定這一電路是(shi)為(wei)了穩(wen)定電路中(zhong)(zhong)(zhong)A點的(de)直流工作(zuo)電壓(ya)(ya)(ya)。（3）電路中(zhong)(zhong)(zhong)有(you)多(duo)(duo)只(zhi)元器(qi)件時，一定要設法搞(gao)清楚(chu)實現電路功能的(de)主要元器(qi)件，然后(hou)圍(wei)繞(rao)它進行(xing)展開(kai)分(fen)析(xi)。分(fen)析(xi)中(zhong)(zhong)(zhong)運用(yong)(yong)該(gai)元器(qi)件主要特性，進行(xing)合理解(jie)釋(shi)。靜電保護二極(ji)(ji)管(guan)(guan)供應商貴州工業級二極(ji)(ji)管(guan)(guan)廠家(jia)就找成都長九(jiu)電子(zi)科技有(you)限公司。

分(fen)析這一電(dian)(dian)(dian)路(lu)(lu)工作原理需(xu)要了解下列兩個深層次的(de)電(dian)(dian)(dian)路(lu)(lu)原理。（1）VT1等構(gou)成一種放大器電(dian)(dian)(dian)路(lu)(lu)，對于(yu)放大器而(er)(er)言要求它的(de)工作穩定性(xing)好，其中(zhong)有(you)(you)一條就是(shi)溫(wen)度(du)(du)(du)(du)高低變化時(shi)三(san)極(ji)管(guan)(guan)的(de)靜態電(dian)(dian)(dian)流(liu)不(bu)能改變，即VT1基極(ji)電(dian)(dian)(dian)流(liu)不(bu)能隨溫(wen)度(du)(du)(du)(du)變化而(er)(er)改變，否則(ze)就是(shi)工作穩定性(xing)不(bu)好。了解放大器的(de)這一溫(wen)度(du)(du)(du)(du)特(te)性(xing)，對理解VD1構(gou)成的(de)溫(wen)度(du)(du)(du)(du)補償(chang)電(dian)(dian)(dian)路(lu)(lu)工作原理非常重要。（2）三(san)極(ji)管(guan)(guan)VT1有(you)(you)一個與溫(wen)度(du)(du)(du)(du)相關的(de)不(bu)良(liang)特(te)性(xing)，即溫(wen)度(du)(du)(du)(du)升高時(shi)，三(san)極(ji)管(guan)(guan)VT1基極(ji)電(dian)(dian)(dian)流(liu)會增大，溫(wen)度(du)(du)(du)(du)愈(yu)高基極(ji)電(dian)(dian)(dian)流(liu)愈(yu)大，反之則(ze)小(xiao)，顯然(ran)三(san)極(ji)管(guan)(guan)VT1的(de)溫(wen)度(du)(du)(du)(du)穩定性(xing)能不(bu)好。由(you)此(ci)可知，放大器的(de)溫(wen)度(du)(du)(du)(du)穩定性(xing)能不(bu)良(liang)是(shi)由(you)于(yu)三(san)極(ji)管(guan)(guan)溫(wen)度(du)(du)(du)(du)特(te)性(xing)造(zao)成的(de)。

電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)的(de)(de)(de)(de)(de)細節說明如下。（1）在電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)中(zhong)，若(ruo)能(neng)運用(yong)元器件的(de)(de)(de)(de)(de)某一特性去合理地解(jie)釋(shi)它在電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)的(de)(de)(de)(de)(de)作(zuo)用(yong)，說明電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)很可能(neng)是(shi)正確(que)的(de)(de)(de)(de)(de)。例如，在上述電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)中(zhong)，只(zhi)能(neng)用(yong)二(er)極管的(de)(de)(de)(de)(de)溫(wen)度特性才能(neng)合理解(jie)釋(shi)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)VD1的(de)(de)(de)(de)(de)作(zuo)用(yong)。（2）溫(wen)度補(bu)償(chang)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)的(de)(de)(de)(de)(de)溫(wen)度補(bu)償(chang)是(shi)雙向的(de)(de)(de)(de)(de)，即(ji)能(neng)夠補(bu)償(chang)由于(yu)溫(wen)度升高或(huo)降(jiang)(jiang)低而引起的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)工(gong)作(zuo)的(de)(de)(de)(de)(de)不(bu)穩定性。（3）分(fen)析(xi)(xi)溫(wen)度補(bu)償(chang)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)工(gong)作(zuo)原(yuan)理時(shi)，要假設(she)溫(wen)度的(de)(de)(de)(de)(de)升高或(huo)降(jiang)(jiang)低變(bian)化，然后分(fen)析(xi)(xi)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)的(de)(de)(de)(de)(de)反應過程，得到正確(que)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)反饋結果(guo)。在實際電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)中(zhong)，可以只(zhi)設(she)溫(wen)度升高進行電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)補(bu)償(chang)的(de)(de)(de)(de)(de)分(fen)析(xi)(xi)，不(bu)必再(zai)分(fen)析(xi)(xi)溫(wen)度降(jiang)(jiang)低時(shi)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)補(bu)償(chang)的(de)(de)(de)(de)(de)情況(kuang)，因為溫(wen)度降(jiang)(jiang)低的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)思路(lu)(lu)(lu)、過程是(shi)相(xiang)似的(de)(de)(de)(de)(de)，只(zhi)是(shi)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)分(fen)析(xi)(xi)的(de)(de)(de)(de)(de)每一步變(bian)化相(xiang)反。云南車規二(er)極管廠家(jia)就(jiu)找成都長九(jiu)電(dian)(dian)(dian)(dian)子科(ke)技有(you)限公司。

二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)及故(gu)(gu)障(zhang)處理(li)二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)導(dao)(dao)通之(zhi)后(hou)，它的(de)(de)正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻大(da)(da)(da)小(xiao)(xiao)(xiao)隨(sui)電(dian)(dian)流(liu)大(da)(da)(da)小(xiao)(xiao)(xiao)變化(hua)而有微小(xiao)(xiao)(xiao)改變，正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)流(liu)愈(yu)大(da)(da)(da)，正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻愈(yu)小(xiao)(xiao)(xiao)；反之(zhi)則(ze)大(da)(da)(da)。利用二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)流(liu)與正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻之(zhi)間的(de)(de)特(te)性(xing)，可以構(gou)(gou)成(cheng)一(yi)些(xie)自(zi)(zi)(zi)動(dong)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)。如(ru)圖9-43所示是一(yi)種(zhong)由(you)二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)構(gou)(gou)成(cheng)的(de)(de)自(zi)(zi)(zi)動(dong)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)，又稱ALC電(dian)(dian)路(lu)(lu)(lu)（自(zi)(zi)(zi)動(dong)電(dian)(dian)平(ping)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)），它在(zai)磁(ci)性(xing)錄(lu)音(yin)設(she)(she)備中（如(ru)卡(ka)座）的(de)(de)錄(lu)音(yin)電(dian)(dian)路(lu)(lu)(lu)中經(jing)常(chang)應用。二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)及故(gu)(gu)障(zhang)處理(li)二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)導(dao)(dao)通之(zhi)后(hou)，它的(de)(de)正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻大(da)(da)(da)小(xiao)(xiao)(xiao)隨(sui)電(dian)(dian)流(liu)大(da)(da)(da)小(xiao)(xiao)(xiao)變化(hua)而有微小(xiao)(xiao)(xiao)改變，正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)流(liu)愈(yu)大(da)(da)(da)，正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻愈(yu)小(xiao)(xiao)(xiao)；反之(zhi)則(ze)大(da)(da)(da)。利用二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)流(liu)與正(zheng)向(xiang)(xiang)(xiang)電(dian)(dian)阻之(zhi)間的(de)(de)特(te)性(xing)，可以構(gou)(gou)成(cheng)一(yi)些(xie)自(zi)(zi)(zi)動(dong)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)。如(ru)圖9-43所示是一(yi)種(zhong)由(you)二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)構(gou)(gou)成(cheng)的(de)(de)自(zi)(zi)(zi)動(dong)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)，又稱ALC電(dian)(dian)路(lu)(lu)(lu)（自(zi)(zi)(zi)動(dong)電(dian)(dian)平(ping)控(kong)(kong)制(zhi)電(dian)(dian)路(lu)(lu)(lu)），它在(zai)磁(ci)性(xing)錄(lu)音(yin)設(she)(she)備中（如(ru)卡(ka)座）的(de)(de)錄(lu)音(yin)電(dian)(dian)路(lu)(lu)(lu)中經(jing)常(chang)應用。汽(qi)車二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)廠(chang)家(jia)就找成(cheng)都(dou)長九(jiu)電(dian)(dian)子(zi)科技有限(xian)公(gong)司。貴州半導(dao)(dao)體(ti)二(er)(er)極(ji)(ji)(ji)管(guan)(guan)(guan)供應

重慶ESD二極(ji)管(guan)廠家就(jiu)找成都長九電子(zi)科技有(you)限公司。西(xi)藏車規級TVS二極(ji)管(guan)供應商地址(zhi)

分(fen)析一個從(cong)沒(mei)有(you)(you)見過(guo)的(de)(de)電(dian)(dian)(dian)路(lu)工(gong)作(zuo)原(yuan)理是(shi)困(kun)難的(de)(de)，對基礎知識不的(de)(de)初學者而言就更(geng)加(jia)困(kun)難了。關(guan)于這一電(dian)(dian)(dian)路(lu)的(de)(de)分(fen)析思路(lu)主要說明如(ru)下(xia)。（1）從(cong)電(dian)(dian)(dian)路(lu)中(zhong)(zhong)可以(yi)看出3只(zhi)(zhi)二(er)極(ji)(ji)管(guan)串聯，根據(ju)串聯電(dian)(dian)(dian)路(lu)特性(xing)可知，這3只(zhi)(zhi)二(er)極(ji)(ji)管(guan)如(ru)果導(dao)(dao)通(tong)會同時導(dao)(dao)通(tong)，如(ru)果截(jie)止會同時截(jie)止。（2）根據(ju)二(er)極(ji)(ji)管(guan)是(shi)否導(dao)(dao)通(tong)的(de)(de)判斷原(yuan)則(ze)分(fen)析，在(zai)二(er)極(ji)(ji)管(guan)的(de)(de)正極(ji)(ji)接(jie)(jie)有(you)(you)比負(fu)極(ji)(ji)高得(de)多的(de)(de)電(dian)(dian)(dian)壓(ya)，無論是(shi)直(zhi)流(liu)還是(shi)交(jiao)流(liu)的(de)(de)電(dian)(dian)(dian)壓(ya)，此時二(er)極(ji)(ji)管(guan)均處于導(dao)(dao)通(tong)狀(zhuang)態。從(cong)電(dian)(dian)(dian)路(lu)中(zhong)(zhong)可以(yi)看出，在(zai)VD1正極(ji)(ji)通(tong)過(guo)電(dian)(dian)(dian)阻R1接(jie)(jie)電(dian)(dian)(dian)路(lu)中(zhong)(zhong)的(de)(de)直(zhi)流(liu)工(gong)作(zuo)電(dian)(dian)(dian)壓(ya)+V，VD3的(de)(de)負(fu)極(ji)(ji)接(jie)(jie)地(di)，這樣在(zai)3只(zhi)(zhi)串聯二(er)極(ji)(ji)管(guan)上(shang)加(jia)有(you)(you)足夠大的(de)(de)正向直(zhi)流(liu)電(dian)(dian)(dian)壓(ya)。由此分(fen)析可知，3只(zhi)(zhi)二(er)極(ji)(ji)管(guan)VD1、VD2和VD3是(shi)在(zai)直(zhi)流(liu)工(gong)作(zuo)電(dian)(dian)(dian)壓(ya)+V作(zuo)用下(xia)導(dao)(dao)通(tong)的(de)(de)。（3）從(cong)電(dian)(dian)(dian)路(lu)中(zhong)(zhong)還可以(yi)看出，3只(zhi)(zhi)二(er)極(ji)(ji)管(guan)上(shang)沒(mei)有(you)(you)加(jia)入(ru)交(jiao)流(liu)信號電(dian)(dian)(dian)壓(ya)，因為在(zai)VD1正極(ji)(ji)即(ji)電(dian)(dian)(dian)路(lu)中(zhong)(zhong)的(de)(de)A點與地(di)之間接(jie)(jie)有(you)(you)大容量電(dian)(dian)(dian)容C1，將A點的(de)(de)任何交(jiao)流(liu)電(dian)(dian)(dian)壓(ya)旁路(lu)到地(di)端(duan)。西(xi)藏車規級(ji)TVS二(er)極(ji)(ji)管(guan)供應商地(di)址

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