此時(shi)(shi)二(er)(er)(er)極管(guan)(guan)(guan)VD1對級錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)放(fang)(fang)大(da)器(qi)輸出(chu)的(de)(de)(de)信(xin)(xin)(xin)號也(ye)沒有分流作(zuo)用(yong)(yong)。3）當(dang)(dang)電(dian)(dian)路(lu)(lu)中(zhong)的(de)(de)(de)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號比(bi)較(jiao)大(da)時(shi)(shi)，直(zhi)流控(kong)(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)壓Ui較(jiao)大(da)，使二(er)(er)(er)極管(guan)(guan)(guan)VD1導(dao)通(tong)(tong)(tong)，錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號愈大(da)，直(zhi)流控(kong)(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)壓Ui愈大(da)，VD1導(dao)通(tong)(tong)(tong)程(cheng)度(du)愈深，VD1的(de)(de)(de)內(nei)(nei)阻(zu)(zu)愈小(xiao)。4）VD1導(dao)通(tong)(tong)(tong)后，VD1的(de)(de)(de)內(nei)(nei)阻(zu)(zu)下降，級錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)放(fang)(fang)大(da)器(qi)輸出(chu)的(de)(de)(de)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號中(zhong)的(de)(de)(de)一(yi)(yi)(yi)部分通(tong)(tong)(tong)過電(dian)(dian)容C1和導(dao)通(tong)(tong)(tong)的(de)(de)(de)二(er)(er)(er)極管(guan)(guan)(guan)VD1被(bei)分流到地端，VD1導(dao)通(tong)(tong)(tong)愈深，它的(de)(de)(de)內(nei)(nei)阻(zu)(zu)愈小(xiao)，對級錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)放(fang)(fang)大(da)器(qi)輸出(chu)信(xin)(xin)(xin)號的(de)(de)(de)對地分流量愈大(da)，實現自動電(dian)(dian)平控(kong)(kong)(kong)制(zhi)(zhi)(zhi)。5）二(er)(er)(er)極管(guan)(guan)(guan)VD1的(de)(de)(de)導(dao)通(tong)(tong)(tong)程(cheng)度(du)受(shou)直(zhi)流控(kong)(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)壓Ui控(kong)(kong)(kong)制(zhi)(zhi)(zhi)，而直(zhi)流控(kong)(kong)(kong)制(zhi)(zhi)(zhi)電(dian)(dian)壓Ui隨(sui)著電(dian)(dian)路(lu)(lu)中(zhong)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號大(da)小(xiao)的(de)(de)(de)變(bian)化(hua)而變(bian)化(hua)，所以(yi)二(er)(er)(er)極管(guan)(guan)(guan)VD1的(de)(de)(de)內(nei)(nei)阻(zu)(zu)變(bian)化(hua)實際(ji)上(shang)受(shou)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號大(da)小(xiao)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)。4．故障檢測(ce)方(fang)法(fa)和電(dian)(dian)路(lu)(lu)故障分析對于(yu)這(zhe)一(yi)(yi)(yi)電(dian)(dian)路(lu)(lu)中(zhong)的(de)(de)(de)二(er)(er)(er)極管(guan)(guan)(guan)故障檢測(ce)好的(de)(de)(de)方(fang)法(fa)是進行代(dai)替檢查(cha)，因為二(er)(er)(er)極管(guan)(guan)(guan)如(ru)果性能不好也(ye)會影(ying)響到電(dian)(dian)路(lu)(lu)的(de)(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)效(xiao)果。當(dang)(dang)二(er)(er)(er)極管(guan)(guan)(guan)VD1開路(lu)(lu)時(shi)(shi)，不存在(zai)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)作(zuo)用(yong)(yong)，這(zhe)時(shi)(shi)大(da)信(xin)(xin)(xin)號錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)時(shi)(shi)會出(chu)現聲(sheng)音(yin)(yin)(yin)(yin)(yin)(yin)一(yi)(yi)(yi)會兒大(da)一(yi)(yi)(yi)會兒小(xiao)的(de)(de)(de)起伏狀(zhuang)失真，在(zai)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號很(hen)小(xiao)時(shi)(shi)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)能夠(gou)正常。當(dang)(dang)二(er)(er)(er)極管(guan)(guan)(guan)VD1擊穿時(shi)(shi)，也(ye)不存在(zai)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)作(zuo)用(yong)(yong)，這(zhe)時(shi)(shi)錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)聲(sheng)音(yin)(yin)(yin)(yin)(yin)(yin)很(hen)小(xiao)，因為錄(lu)音(yin)(yin)(yin)(yin)(yin)(yin)信(xin)(xin)(xin)號被(bei)擊穿的(de)(de)(de)二(er)(er)(er)極管(guan)(guan)(guan)VD1分流到地了。二(er)(er)(er)極管(guan)(guan)(guan)限(xian)幅電(dian)(dian)路(lu)(lu)及故障處理(li)二(er)(er)(er)極管(guan)(guan)(guan)基本的(de)(de)(de)工作(zuo)狀(zhuang)態是導(dao)通(tong)(tong)(tong)和截止(zhi)兩種(zhong)，利(li)用(yong)(yong)這(zhe)一(yi)(yi)(yi)特(te)性可(ke)以(yi)構(gou)成限(xian)幅電(dian)(dian)路(lu)(lu)。P型半導(dao)體是在(zai)本征半導(dao)體（一(yi)(yi)(yi)種(zhong)完全純(chun)凈的(de)(de)(de)、結構(gou)完整的(de)(de)(de)半導(dao)體晶(jing)體）摻(chan)入少量三價元素雜(za)質(zhi)，如(ru)硼等(deng)。廣東哪里有西門康SEMIKRON二(er)(er)(er)極管(guan)(guan)(guan)廠家供(gong)應

晶體(ti)二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)為(wei)(wei)一(yi)(yi)(yi)個由(you)(you)(you)p型(xing)半(ban)導體(ti)和n型(xing)半(ban)導體(ti)形(xing)成(cheng)(cheng)的(de)(de)p-n結，在其(qi)界面處(chu)兩(liang)側形(xing)成(cheng)(cheng)空間電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷層，并(bing)建(jian)(jian)有自(zi)建(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場。當(dang)(dang)(dang)不存在外加電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓時，由(you)(you)(you)于p-n結兩(liang)邊(bian)載流(liu)(liu)(liu)(liu)(liu)子濃度差引起(qi)的(de)(de)擴(kuo)(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)和自(zi)建(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場引起(qi)的(de)(de)漂移(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)相(xiang)等而處(chu)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)平衡狀態。當(dang)(dang)(dang)外界有正向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓偏置時，外界電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場和自(zi)建(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場的(de)(de)互相(xiang)抑消作用(yong)(yong)(yong)使載流(liu)(liu)(liu)(liu)(liu)子的(de)(de)擴(kuo)(kuo)散電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)增(zeng)加引起(qi)了正向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)。當(dang)(dang)(dang)外界有反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓偏置時，外界電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場和自(zi)建(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場進一(yi)(yi)(yi)步加強，形(xing)成(cheng)(cheng)在一(yi)(yi)(yi)定(ding)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓范圍內(nei)與反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)偏置電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓值無(wu)(wu)關的(de)(de)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)飽和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)I0。中(zhong)文(wen)名(ming)二(er)(er)(er)級(ji)管(guan)(guan)(guan)外文(wen)名(ming)diode目錄1二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)簡(jian)介(jie)2二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)特性(xing)3二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)的(de)(de)原(yuan)理4反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)擊穿5應用(yong)(yong)(yong)6類型(xing)7發(fa)光二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)原(yuan)理二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)簡(jian)介(jie)編(bian)輯二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)內(nei)部構造(zao)二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)的(de)(de)英文(wen)是(shi)(shi)(shi)diode。二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)的(de)(de)正.負二(er)(er)(er)個端子,(如圖)一(yi)(yi)(yi)端稱(cheng)為(wei)(wei)陽極(ji)(ji)(ji)(ji)(ji)(ji),一(yi)(yi)(yi)端稱(cheng)為(wei)(wei)陰極(ji)(ji)(ji)(ji)(ji)(ji)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)只能(neng)從陽極(ji)(ji)(ji)(ji)(ji)(ji)向(xiang)(xiang)(xiang)(xiang)(xiang)陰極(ji)(ji)(ji)(ji)(ji)(ji)方向(xiang)(xiang)(xiang)(xiang)(xiang)移(yi)動。二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)是(shi)(shi)(shi)由(you)(you)(you)半(ban)導體(ti)組成(cheng)(cheng)的(de)(de)器(qi)(qi)件。半(ban)導體(ti)無(wu)(wu)論哪個方向(xiang)(xiang)(xiang)(xiang)(xiang)都能(neng)流(liu)(liu)(liu)(liu)(liu)動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)。二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)原(yuan)理二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)特性(xing)編(bian)輯二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)（英語：Diode），電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子元件當(dang)(dang)(dang)中(zhong)，一(yi)(yi)(yi)種具有兩(liang)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)裝置，只允(yun)許(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)由(you)(you)(you)單(dan)一(yi)(yi)(yi)方向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)過。許(xu)多的(de)(de)使用(yong)(yong)(yong)是(shi)(shi)(shi)應用(yong)(yong)(yong)其(qi)整流(liu)(liu)(liu)(liu)(liu)的(de)(de)功能(neng)。而變容(rong)二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)（VaricapDiode）則用(yong)(yong)(yong)來當(dang)(dang)(dang)作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子式的(de)(de)可(ke)調電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)。大部分二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)所具備(bei)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)方向(xiang)(xiang)(xiang)(xiang)(xiang)性(xing)，通常(chang)(chang)稱(cheng)之(zhi)為(wei)(wei)“整流(liu)(liu)(liu)(liu)(liu)（Rectifying）”功能(neng)。湖南(nan)進口西門康SEMIKRON二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)聯系方式無(wu)(wu)論是(shi)(shi)(shi)在常(chang)(chang)見的(de)(de)收音機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路還是(shi)(shi)(shi)在其(qi)他的(de)(de)家用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)產(chan)品或工業(ye)控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)，都可(ke)以找(zhao)到(dao)二(er)(er)(er)極(ji)(ji)(ji)(ji)(ji)(ji)管(guan)(guan)(guan)的(de)(de)蹤跡。

送到(dao)(dao)后(hou)級電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)進(jin)一(yi)步處(chu)理。圖(tu)9-50檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)形(xing)示意圖(tu)2）檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)(de)平均值是直(zhi)流(liu)成分，它的(de)(de)(de)(de)大(da)(da)(da)小(xiao)表示了檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)(de)平均幅值大(da)(da)(da)小(xiao)，檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)幅度大(da)(da)(da)，其平均值大(da)(da)(da)，這(zhe)一(yi)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值就大(da)(da)(da)，反之(zhi)則小(xiao)。這(zhe)一(yi)直(zhi)流(liu)成分在(zai)收(shou)音機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)用來(lai)控(kong)制一(yi)種(zhong)稱為(wei)(wei)中(zhong)頻(pin)放大(da)(da)(da)器的(de)(de)(de)(de)放大(da)(da)(da)倍數（也可以(yi)稱為(wei)(wei)增益(yi)），稱為(wei)(wei)AGC（自動增益(yi)控(kong)制）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。AGC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)被(bei)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)耦合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)隔離(li)，不(bu)(bu)(bu)能與音頻(pin)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)一(yi)起(qi)加(jia)到(dao)(dao)后(hou)級放大(da)(da)(da)器電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)，而是專門加(jia)到(dao)(dao)AGC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)。3）檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)中(zhong)還有高頻(pin)載(zai)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)，這(zhe)一(yi)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)無(wu)用，通(tong)過接在(zai)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)的(de)(de)(de)(de)高頻(pin)濾(lv)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C1，被(bei)濾(lv)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)到(dao)(dao)地端(duan)(duan)。一(yi)般檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)不(bu)(bu)(bu)給檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)二極管加(jia)入(ru)(ru)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，但在(zai)一(yi)些小(xiao)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)，由于調幅信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)(de)幅度比較小(xiao)，不(bu)(bu)(bu)足以(yi)使(shi)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)二極管導(dao)通(tong)，所以(yi)給檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)二極管加(jia)入(ru)(ru)較小(xiao)的(de)(de)(de)(de)正向(xiang)直(zhi)流(liu)偏置(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，如圖(tu)所示，使(shi)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)二極管處(chu)于微導(dao)通(tong)狀態。從檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)可以(yi)看出(chu)，高頻(pin)濾(lv)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C1接在(zai)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)與地線之(zhi)間，由于檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)的(de)(de)(de)(de)三種(zhong)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)其頻(pin)率不(bu)(bu)(bu)同，加(jia)上高頻(pin)濾(lv)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)C1的(de)(de)(de)(de)容(rong)(rong)量取得很小(xiao)，這(zhe)樣C1對三種(zhong)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)(de)(de)處(chu)理過程不(bu)(bu)(bu)同。1）對于直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)而言，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)隔直(zhi)特(te)性使(shi)C1開路(lu)(lu)(lu)，所以(yi)檢(jian)(jian)(jian)(jian)波(bo)(bo)(bo)(bo)(bo)(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)的(de)(de)(de)(de)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)不(bu)(bu)(bu)能被(bei)C1旁(pang)路(lu)(lu)(lu)到(dao)(dao)地線。

正(zheng)向(xiang)(xiang)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)，反(fan)向(xiang)(xiang)不(bu)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)）晶體二(er)極管(guan)(guan)是(shi)(shi)一(yi)(yi)(yi)個(ge)由(you)(you)(you)p型半(ban)導(dao)(dao)體和n型半(ban)導(dao)(dao)體形(xing)(xing)成的(de)(de)(de)(de)(de)p-n結(jie)，在其界面處(chu)兩(liang)側形(xing)(xing)成了空(kong)間(jian)電(dian)(dian)(dian)(dian)(dian)(dian)荷層，并且建(jian)有自(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)，當(dang)(dang)不(bu)存在外加電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時(shi)(shi)，因(yin)(yin)為(wei)(wei)p-n結(jie)兩(liang)邊載(zai)流子(zi)濃(nong)度(du)差引起的(de)(de)(de)(de)(de)擴散(san)電(dian)(dian)(dian)(dian)(dian)(dian)流和自(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)引起的(de)(de)(de)(de)(de)漂移電(dian)(dian)(dian)(dian)(dian)(dian)流相等而(er)處(chu)于電(dian)(dian)(dian)(dian)(dian)(dian)平衡狀態(tai)。當(dang)(dang)產(chan)生正(zheng)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)偏置(zhi)時(shi)(shi)，外界電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)與(yu)自(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)互相抑消作用使(shi)載(zai)流子(zi)的(de)(de)(de)(de)(de)擴散(san)電(dian)(dian)(dian)(dian)(dian)(dian)流增(zeng)加引起了正(zheng)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)流（也就是(shi)(shi)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)原(yuan)因(yin)(yin)）。當(dang)(dang)產(chan)生反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)偏置(zhi)時(shi)(shi)，外界電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)與(yu)自(zi)建(jian)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)進一(yi)(yi)(yi)步加強(qiang)，形(xing)(xing)成在一(yi)(yi)(yi)定(ding)反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)范圍中與(yu)反(fan)向(xiang)(xiang)偏置(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值(zhi)(zhi)無關的(de)(de)(de)(de)(de)反(fan)向(xiang)(xiang)飽和電(dian)(dian)(dian)(dian)(dian)(dian)流I0（這也就是(shi)(shi)不(bu)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)原(yuan)因(yin)(yin)）。當(dang)(dang)外加的(de)(de)(de)(de)(de)反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)高到一(yi)(yi)(yi)定(ding)程(cheng)(cheng)度(du)時(shi)(shi)，p-n結(jie)空(kong)間(jian)電(dian)(dian)(dian)(dian)(dian)(dian)荷層中的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)強(qiang)度(du)達到臨界值(zhi)(zhi)產(chan)生載(zai)流子(zi)的(de)(de)(de)(de)(de)倍增(zeng)過程(cheng)(cheng)，產(chan)生大(da)量電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)空(kong)穴對，產(chan)生了數(shu)值(zhi)(zhi)很大(da)的(de)(de)(de)(de)(de)反(fan)向(xiang)(xiang)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)流，稱(cheng)為(wei)(wei)二(er)極管(guan)(guan)的(de)(de)(de)(de)(de)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)現(xian)象(xiang)。二(er)極管(guan)(guan)原(yuan)理反(fan)向(xiang)(xiang)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)編輯反(fan)向(xiang)(xiang)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)按機(ji)理分為(wei)(wei)齊納擊穿(chuan)(chuan)(chuan)(chuan)(chuan)和雪(xue)崩(beng)(beng)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)兩(liang)種情(qing)況(kuang)。在高摻(chan)雜(za)(za)濃(nong)度(du)的(de)(de)(de)(de)(de)情(qing)況(kuang)下(xia)，因(yin)(yin)勢壘區寬度(du)很小，反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)較(jiao)(jiao)大(da)時(shi)(shi)，破(po)壞了勢壘區內共價(jia)鍵(jian)結(jie)構，使(shi)價(jia)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)脫離共價(jia)鍵(jian)束縛，產(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)-空(kong)穴對，致使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)流急(ji)劇增(zeng)大(da)，這種擊穿(chuan)(chuan)(chuan)(chuan)(chuan)稱(cheng)為(wei)(wei)齊納擊穿(chuan)(chuan)(chuan)(chuan)(chuan)。如果摻(chan)雜(za)(za)濃(nong)度(du)較(jiao)(jiao)低，勢壘區寬度(du)較(jiao)(jiao)寬，不(bu)容易產(chan)生齊納擊穿(chuan)(chuan)(chuan)(chuan)(chuan)。雪(xue)崩(beng)(beng)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)另一(yi)(yi)(yi)種擊穿(chuan)(chuan)(chuan)(chuan)(chuan)為(wei)(wei)雪(xue)崩(beng)(beng)擊穿(chuan)(chuan)(chuan)(chuan)(chuan)。當(dang)(dang)反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)增(zeng)加到較(jiao)(jiao)大(da)數(shu)值(zhi)(zhi)時(shi)(shi)。二(er)極管(guan)(guan)有兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)極，由(you)(you)(you)P區引出的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)極是(shi)(shi)正(zheng)極，又叫陽極；由(you)(you)(you)N區引出的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)極是(shi)(shi)負極，又叫陰極。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)C2始終接入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)，此(ci)時(shi)振蕩頻(pin)(pin)率降低。4．同(tong)類電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)工(gong)作原(yuan)理(li)分(fen)(fen)析如圖所(suo)示，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)VD1為開(kai)(kai)關二(er)極管(guan)，控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)通(tong)(tong)過(guo)R1加到(dao)VD1正極，控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)是(shi)一個(ge)矩形(xing)脈沖電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，波(bo)(bo)(bo)形(xing)見(jian)圖中(zhong)(zhong)所(suo)示。當控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)為0V時(shi)，VD1不(bu)能導(dao)通(tong)(tong)，相(xiang)當于(yu)開(kai)(kai)路(lu)(lu)(lu)(lu)，這(zhe)時(shi)對(dui)(dui)L1和(he)C1、L2和(he)C2電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)沒有影響；當控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)為高(gao)(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平時(shi)，控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)使開(kai)(kai)關二(er)極管(guan)VD1導(dao)通(tong)(tong)，VD1相(xiang)當于(yu)通(tong)(tong)路(lu)(lu)(lu)(lu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)A點(dian)(dian)(dian)的(de)(de)交(jiao)流信(xin)(xin)(xin)號(hao)(hao)(hao)通(tong)(tong)過(guo)導(dao)通(tong)(tong)的(de)(de)VD1和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)C3接地，等于(yu)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)A點(dian)(dian)(dian)交(jiao)流接地，使L2和(he)C2電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)不(bu)起作用。從上(shang)述(shu)分(fen)(fen)析可知(zhi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)二(er)極管(guan)VD1相(xiang)當于(yu)一只開(kai)(kai)關，控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)A點(dian)(dian)(dian)交(jiao)流信(xin)(xin)(xin)號(hao)(hao)(hao)是(shi)否接地。二(er)極管(guan)檢(jian)波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)及(ji)故(gu)障(zhang)處理(li)如圖9-48所(suo)示是(shi)二(er)極管(guan)檢(jian)波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)VD1是(shi)檢(jian)波(bo)(bo)(bo)二(er)極管(guan)，C1是(shi)高(gao)(gao)頻(pin)(pin)濾波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)，R1是(shi)檢(jian)波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)的(de)(de)負載電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，C2是(shi)耦合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)。圖9-48二(er)極管(guan)檢(jian)波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)1．電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)分(fen)(fen)析準備知(zhi)識(shi)眾所(suo)周(zhou)知(zhi)，收(shou)(shou)音(yin)機(ji)有調(diao)幅(fu)收(shou)(shou)音(yin)機(ji)和(he)調(diao)頻(pin)(pin)收(shou)(shou)音(yin)機(ji)兩(liang)種，調(diao)幅(fu)信(xin)(xin)(xin)號(hao)(hao)(hao)就(jiu)是(shi)調(diao)幅(fu)收(shou)(shou)音(yin)機(ji)中(zhong)(zhong)處理(li)和(he)放大的(de)(de)信(xin)(xin)(xin)號(hao)(hao)(hao)。見(jian)圖中(zhong)(zhong)的(de)(de)調(diao)幅(fu)信(xin)(xin)(xin)號(hao)(hao)(hao)波(bo)(bo)(bo)形(xing)示意圖，對(dui)(dui)這(zhe)一信(xin)(xin)(xin)號(hao)(hao)(hao)波(bo)(bo)(bo)形(xing)主要(yao)說明下列幾(ji)點(dian)(dian)(dian)：1）從調(diao)幅(fu)收(shou)(shou)音(yin)機(ji)天線下來的(de)(de)就(jiu)是(shi)調(diao)幅(fu)信(xin)(xin)(xin)號(hao)(hao)(hao)。2）信(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)中(zhong)(zhong)間部(bu)分(fen)(fen)是(shi)頻(pin)(pin)率很(hen)高(gao)(gao)的(de)(de)載波(bo)(bo)(bo)信(xin)(xin)(xin)號(hao)(hao)(hao)，它的(de)(de)上(shang)下端是(shi)調(diao)幅(fu)信(xin)(xin)(xin)號(hao)(hao)(hao)的(de)(de)包絡，其包絡就(jiu)是(shi)所(suo)需要(yao)的(de)(de)音(yin)頻(pin)(pin)信(xin)(xin)(xin)號(hao)(hao)(hao)。3）上(shang)包絡信(xin)(xin)(xin)號(hao)(hao)(hao)和(he)下包絡信(xin)(xin)(xin)號(hao)(hao)(hao)對(dui)(dui)稱，但是(shi)信(xin)(xin)(xin)號(hao)(hao)(hao)相(xiang)位相(xiang)反。它具(ju)有單向導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)性能，即給二(er)極管(guan)陽(yang)極加上(shang)正向電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時(shi)，二(er)極管(guan)導(dao)通(tong)(tong)。山西代理(li)西門康SEMIKRON二(er)極管(guan)哪家好

肖特基二(er)極管A為正極，以(yi)N型半(ban)導(dao)體(ti)B為負極利用二(er)者(zhe)接觸面上形成的(de)(de)勢壘具有(you)整(zheng)流特性制成的(de)(de)金屬半(ban)導(dao)體(ti)器件。廣(guang)東哪里有(you)西門康SEMIKRON二(er)極管廠(chang)家(jia)供應

二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)反(fan)向(xiang)(xiang)飽和(he)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)受溫(wen)度影響很(hen)大(da)。3、擊(ji)(ji)穿(chuan)(chuan)外加(jia)反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)超過(guo)(guo)(guo)某一數值時，反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)會突然(ran)增大(da)，這種(zhong)現象稱(cheng)為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)擊(ji)(ji)穿(chuan)(chuan)。引(yin)起電(dian)(dian)(dian)(dian)(dian)(dian)擊(ji)(ji)穿(chuan)(chuan)的(de)(de)(de)(de)臨(lin)界電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)稱(cheng)為(wei)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)反(fan)向(xiang)(xiang)擊(ji)(ji)穿(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)擊(ji)(ji)穿(chuan)(chuan)時二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)失(shi)去(qu)單(dan)向(xiang)(xiang)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)。如果二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)沒(mei)有因(yin)電(dian)(dian)(dian)(dian)(dian)(dian)擊(ji)(ji)穿(chuan)(chuan)而(er)引(yin)起過(guo)(guo)(guo)熱，則單(dan)向(xiang)(xiang)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)不一定會被(bei)長久破壞，在(zai)(zai)撤除外加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)后，其性(xing)(xing)能仍可恢復，否則二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)就損(sun)壞了。因(yin)而(er)使用(yong)時應(ying)避免二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)外加(jia)的(de)(de)(de)(de)反(fan)向(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)過(guo)(guo)(guo)高。二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)一種(zhong)具有單(dan)向(xiang)(xiang)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)二(er)(er)端器件，有電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)晶體(ti)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)之分(fen)，電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)現已很(hen)少見(jian)到，比(bi)較常(chang)(chang)見(jian)和(he)常(chang)(chang)用(yong)的(de)(de)(de)(de)多是(shi)晶體(ti)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)單(dan)向(xiang)(xiang)導(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)特(te)性(xing)(xing)，幾乎在(zai)(zai)所有的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)路中，都要(yao)用(yong)到半(ban)導(dao)(dao)(dao)體(ti)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，它在(zai)(zai)許多的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路中起著(zhu)重要(yao)的(de)(de)(de)(de)作用(yong)，它是(shi)誕生早的(de)(de)(de)(de)半(ban)導(dao)(dao)(dao)體(ti)器件之一，其應(ying)用(yong)也非常(chang)(chang)廣。二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)降(jiang)：硅二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（不發(fa)(fa)(fa)光(guang)(guang)(guang)類型）正(zheng)(zheng)向(xiang)(xiang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)降(jiang)，鍺管(guan)(guan)(guan)(guan)(guan)(guan)(guan)正(zheng)(zheng)向(xiang)(xiang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)降(jiang)為(wei)，發(fa)(fa)(fa)光(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)正(zheng)(zheng)向(xiang)(xiang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壓(ya)(ya)降(jiang)會隨不同發(fa)(fa)(fa)光(guang)(guang)(guang)顏色而(er)不同。主(zhu)要(yao)有三(san)種(zhong)顏色，具體(ti)壓(ya)(ya)降(jiang)參考值如下(xia)：紅色發(fa)(fa)(fa)光(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)壓(ya)(ya)降(jiang)為(wei)，黃色發(fa)(fa)(fa)光(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)壓(ya)(ya)降(jiang)為(wei)—，綠(lv)色發(fa)(fa)(fa)光(guang)(guang)(guang)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)壓(ya)(ya)降(jiang)為(wei)—，正(zheng)(zheng)常(chang)(chang)發(fa)(fa)(fa)光(guang)(guang)(guang)時的(de)(de)(de)(de)額定電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)約為(wei)20mA。二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不是(shi)線性(xing)(xing)關系，所以(yi)在(zai)(zai)將不同的(de)(de)(de)(de)二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)并聯的(de)(de)(de)(de)時候要(yao)接相適(shi)應(ying)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻。[1]二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)原(yuan)理二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)原(yuan)理編輯二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)工(gong)作原(yuan)理。廣東(dong)哪里有西門(men)康SEMIKRON二(er)(er)極(ji)(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠家供應(ying)

江蘇芯鉆(zhan)時(shi)代(dai)電(dian)子科技有(you)限(xian)公司(si)(si)匯集(ji)了大量的(de)(de)(de)(de)(de)優秀人才，集(ji)企業奇思(si)，創(chuang)(chuang)經(jing)濟奇跡，一(yi)群有(you)夢想(xiang)有(you)朝氣的(de)(de)(de)(de)(de)團隊不斷在(zai)前進(jin)的(de)(de)(de)(de)(de)道路上開(kai)創(chuang)(chuang)新(xin)天地，繪畫新(xin)藍(lan)圖，在(zai)江蘇省(sheng)等地區的(de)(de)(de)(de)(de)電(dian)子元器件中始終保(bao)持(chi)良(liang)好的(de)(de)(de)(de)(de)信譽，信奉著(zhu)“爭取每一(yi)個客戶不容易(yi)，失(shi)去(qu)每一(yi)個用戶很簡(jian)單(dan)”的(de)(de)(de)(de)(de)理(li)念，市場是企業的(de)(de)(de)(de)(de)方(fang)向，質量是企業的(de)(de)(de)(de)(de)生命(ming)，在(zai)公司(si)(si)有(you)效方(fang)針(zhen)的(de)(de)(de)(de)(de)領導下(xia)，全體上下(xia)，團結(jie)一(yi)致，共同進(jin)退(tui)，**協力(li)把(ba)各方(fang)面工(gong)作做得更(geng)好，努力(li)開(kai)創(chuang)(chuang)工(gong)作的(de)(de)(de)(de)(de)新(xin)局面，公司(si)(si)的(de)(de)(de)(de)(de)新(xin)高度，未(wei)來江蘇省(sheng)芯鉆(zhan)時(shi)代(dai)電(dian)子科技供應和(he)您一(yi)起(qi)(qi)奔(ben)向更(geng)美好的(de)(de)(de)(de)(de)未(wei)來，即(ji)使現在(zai)有(you)一(yi)點(dian)小小的(de)(de)(de)(de)(de)成績，也不足以驕傲，過去(qu)的(de)(de)(de)(de)(de)種種都已成為昨日我(wo)們只有(you)總(zong)結(jie)經(jing)驗，才能繼(ji)續上路，讓(rang)我(wo)們一(yi)起(qi)(qi)點(dian)燃新(xin)的(de)(de)(de)(de)(de)希望，放飛新(xin)的(de)(de)(de)(de)(de)夢想(xiang)！