做出(chu)了(le)(le)能(neng)(neng)適應(ying)于(yu)高頻(pin)(pin)應(ying)用的(de)(de)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)，我(wo)們將它(ta)稱為快(kuai)速(su)(su)(su)(su)(su)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)。它(ta)具(ju)有(you)關(guan)(guan)斷時(shi)(shi)間（toff）短(duan)、導(dao)通(tong)(tong)速(su)(su)(su)(su)(su)度(du)快(kuai)．能(neng)(neng)耐(nai)較高的(de)(de)電(dian)(dian)(dian)(dian)(dian)流上(shang)升率(lv)（dI／dt）、能(neng)(neng)耐(nai)較高的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)上(shang)升率(lv)（dv／dt）、抗干(gan)擾能(neng)(neng)力較好等特點(dian)。快(kuai)速(su)(su)(su)(su)(su)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)的(de)(de)生(sheng)產(chan)(chan)和(he)(he)應(ying)用都(dou)進展很快(kuai)。目前，已有(you)了(le)(le)電(dian)(dian)(dian)(dian)(dian)流幾百安培、耐(nai)壓(ya)(ya)1千余伏，關(guan)(guan)斷時(shi)(shi)間為20微妙的(de)(de)大(da)(da)(da)功(gong)(gong)率(lv)快(kuai)速(su)(su)(su)(su)(su)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)，同(tong)時(shi)(shi)還做出(chu)了(le)(le)比較高工作頻(pin)(pin)率(lv)可(ke)達幾十千赫茲(zi)供(gong)高頻(pin)(pin)逆(ni)(ni)變(bian)用的(de)(de)元件。其(qi)產(chan)(chan)品(pin)(pin)廣應(ying)用于(yu)大(da)(da)(da)功(gong)(gong)率(lv)直(zhi)(zhi)流開(kai)關(guan)(guan)、大(da)(da)(da)功(gong)(gong)率(lv)中(zhong)頻(pin)(pin)感應(ying)加熱電(dian)(dian)(dian)(dian)(dian)源、超聲波電(dian)(dian)(dian)(dian)(dian)源、激光電(dian)(dian)(dian)(dian)(dian)源、雷達調(diao)制器及直(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)動(dong)車輛調(diao)速(su)(su)(su)(su)(su)等領(ling)域。3．逆(ni)(ni)導(dao)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)以往的(de)(de)為了(le)(le)便于(yu)調(diao)速(su)(su)(su)(su)(su)采用直(zhi)(zhi)流供(gong)電(dian)(dian)(dian)(dian)(dian)，用直(zhi)(zhi)流開(kai)關(guan)(guan)動(dong)作增加或減小電(dian)(dian)(dian)(dian)(dian)路(lu)電(dian)(dian)(dian)(dian)(dian)阻，改變(bian)電(dian)(dian)(dian)(dian)(dian)路(lu)電(dian)(dian)(dian)(dian)(dian)流來(lai)控制車輛的(de)(de)速(su)(su)(su)(su)(su)度(du)。但(dan)它(ta)有(you)不能(neng)(neng)平滑起動(dong)和(he)(he)加速(su)(su)(su)(su)(su)。自有(you)了(le)(le)，了(le)(le)逆(ni)(ni)導(dao)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)不了(le)(le)上(shang)述缺(que)點(dian)，而(er)且還逆(ni)(ni)導(dao)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)是(shi)在普通(tong)(tong)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)上(shang)反(fan)向(xiang)并(bing)(bing)聯一只二極(ji)管(guan)(guan)(guan)(guan)(guan)而(er)成，特點(dian)是(shi)能(neng)(neng)反(fan)向(xiang)導(dao)通(tong)(tong)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)流。由于(yu)它(ta)的(de)(de)陽極(ji)和(he)(he)陰(yin)極(ji)接入反(fan)向(xiang)并(bing)(bing)聯的(de)(de)二極(ji)管(guan)(guan)(guan)(guan)(guan)，可(ke)對電(dian)(dian)(dian)(dian)(dian)感負載關(guan)(guan)斷時(shi)(shi)產(chan)(chan)生(sheng)的(de)(de)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)流、高電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)進行快(kuai)速(su)(su)(su)(su)(su)釋放。城(cheng)市電(dian)(dian)(dian)(dian)(dian)車和(he)(he)地鐵機(ji)車采用逆(ni)(ni)導(dao)晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)控制和(he)(he)調(diao)節車速(su)(su)(su)(su)(su)，能(neng)(neng)夠克服開(kai)關(guan)(guan)體積大(da)(da)(da)、壽命(ming)短(duan)，而(er)且低(di)速(su)(su)(su)(su)(su)運行時(shi)(shi)耗電(dian)(dian)(dian)(dian)(dian)大(da)(da)(da)（減速(su)(su)(su)(su)(su)時(shi)(shi)消耗在啟動(dong)電(dian)(dian)(dian)(dian)(dian)阻上(shang)）等缺(que)點(dian)，從(cong)而(er)降低(di)了(le)(le)功(gong)(gong)耗，提高了(le)(le)機(ji)車可(ke)靠性。1957年美國通(tong)(tong)用電(dian)(dian)(dian)(dian)(dian)器公司開(kai)發(fa)出(chu)世界上(shang)第 1晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)產(chan)(chan)品(pin)(pin)，并(bing)(bing)于(yu)1958年使(shi)其(qi)商業化。福建中(zhong)頻(pin)(pin)爐可(ke)控硅（晶(jing)閘(zha)管(guan)(guan)(guan)(guan)(guan)）Infineon英飛(fei)凌全新原裝現貨

4．可(ke)(ke)關(guan)斷(duan)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)可(ke)(ke)關(guan)斷(duan)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)亦(yi)稱(cheng)門(men)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)。其主要(yao)特(te)點(dian)是(shi)(shi)(shi)，當門(men)極(ji)(ji)加負向觸發(fa)信號時(shi)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)能自(zi)(zi)行關(guan)斷(duan)。它(ta)既保留了普(pu)通(tong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)耐壓高、電(dian)(dian)流(liu)大(da)(da)等(deng)(deng)優(you)點(dian)，以(yi)具有自(zi)(zi)關(guan)斷(duan)能力，使(shi)用(yong)方便，是(shi)(shi)(shi)理想(xiang)的(de)(de)(de)(de)(de)高壓、大(da)(da)電(dian)(dian)流(liu)開(kai)關(guan)器件(jian)(jian)(jian)。它(ta)的(de)(de)(de)(de)(de)容量及使(shi)用(yong)壽命均超(chao)過巨(ju)型(xing)晶(jing)(jing)(jing)(jing)體管(guan)(guan)(guan)(guan)。目前，大(da)(da)功率可(ke)(ke)關(guan)斷(duan)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)已(yi)廣用(yong)于(yu)斬波(bo)(bo)調(diao)速、變(bian)頻調(diao)速、逆變(bian)電(dian)(dian)源(yuan)等(deng)(deng)領域，顯示出(chu)強大(da)(da)的(de)(de)(de)(de)(de)生命力。5．光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)又(you)稱(cheng)光(guang)(guang)(guang)(guang)(guang)觸發(fa)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)，是(shi)(shi)(shi)一種光(guang)(guang)(guang)(guang)(guang)敏器件(jian)(jian)(jian)。由于(yu)其控(kong)(kong)(kong)制(zhi)信號來自(zi)(zi)光(guang)(guang)(guang)(guang)(guang)的(de)(de)(de)(de)(de)照射，沒(mei)有必要(yao)再(zai)引(yin)出(chu)控(kong)(kong)(kong)制(zhi)極(ji)(ji)，所以(yi)只有兩個(ge)電(dian)(dian)極(ji)(ji)（陽(yang)極(ji)(ji)A和陰極(ji)(ji)K），結構與普(pu)通(tong)可(ke)(ke)控(kong)(kong)(kong)硅(gui)(gui)一樣，是(shi)(shi)(shi)由四層PNPN器件(jian)(jian)(jian)構成(cheng)。圖2光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)符號圖當在光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)陽(yang)極(ji)(ji)加上(shang)(shang)正向電(dian)(dian)壓，陰極(ji)(ji)加上(shang)(shang)負向電(dian)(dian)壓時(shi)，控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)可(ke)(ke)以(yi)等(deng)(deng)效成(cheng)的(de)(de)(de)(de)(de)電(dian)(dian)路。光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)基(ji)本特(te)性(xing)與普(pu)通(tong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)是(shi)(shi)(shi)相同的(de)(de)(de)(de)(de)，只是(shi)(shi)(shi)它(ta)對光(guang)(guang)(guang)(guang)(guang)源(yuan)的(de)(de)(de)(de)(de)波(bo)(bo)長有一定的(de)(de)(de)(de)(de)要(yao)求，有選擇性(xing)。波(bo)(bo)長在0．8——0．9um的(de)(de)(de)(de)(de)紅外線及波(bo)(bo)長在1um左右(you)的(de)(de)(de)(de)(de)激光(guang)(guang)(guang)(guang)(guang)，都是(shi)(shi)(shi)光(guang)(guang)(guang)(guang)(guang)控(kong)(kong)(kong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)較為理想(xiang)的(de)(de)(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)源(yuan)。晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)應(ying)用(yong)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)是(shi)(shi)(shi)一種開(kai)關(guan)元件(jian)(jian)(jian)，具有硅(gui)(gui)整流(liu)器件(jian)(jian)(jian)的(de)(de)(de)(de)(de)特(te)性(xing)，能在高電(dian)(dian)壓、大(da)(da)電(dian)(dian)流(liu)條件(jian)(jian)(jian)下工(gong)作。它(ta)基(ji)本的(de)(de)(de)(de)(de)用(yong)途就是(shi)(shi)(shi)可(ke)(ke)控(kong)(kong)(kong)整流(liu)，其工(gong)作過程(cheng)可(ke)(ke)以(yi)控(kong)(kong)(kong)制(zhi)，具有體積小、輕(qing)、功耗(hao)低、效率高、開(kai)關(guan)迅速等(deng)(deng)優(you)點(dian)。基(ji)于(yu)上(shang)(shang)述特(te)點(dian)。重慶半導體igbt可(ke)(ke)控(kong)(kong)(kong)硅(gui)(gui)（晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)(guan)(guan)）FUJI全新(xin)原裝原裝應(ying)在額定參數范圍內(nei)使(shi)用(yong)可(ke)(ke)控(kong)(kong)(kong)硅(gui)(gui)。選擇可(ke)(ke)控(kong)(kong)(kong)硅(gui)(gui)主要(yao)確定兩個(ge)參致(zhi)。

適應多(duo)于六個(ge)晶閘(zha)(zha)管(guan)元(yuan)件(jian)(jian)(jian)的(de)各(ge)種(zhong)大型可(ke)(ke)控(kong)(kong)(kong)整流(liu)(liu)設備。具有完善(shan)故障(zhang)、報警(jing)檢(jian)測(ce)和(he)(he)保護功能(neng)。實(shi)時檢(jian)測(ce)過(guo)流(liu)(liu)、過(guo)壓、反饋(kui)丟失、控(kong)(kong)(kong)制(zhi)板(ban)(ban)內部故障(zhang)。設有開機給定(ding)回零、軟啟動、截流(liu)(liu)、截壓、急停保護。調(diao)(diao)(diao)試(shi)簡便，數(shu)控(kong)(kong)(kong)板(ban)(ban)調(diao)(diao)(diao)試(shi)不用示波器和(he)(he)萬用表。每一塊控(kong)(kong)(kong)制(zhi)板(ban)(ban)均經過(guo)了嚴格的(de)軟件(jian)(jian)(jian)測(ce)試(shi)、硬件(jian)(jian)(jian)老化，以確保工作穩定(ding)可(ke)(ke)靠。三(san)相(xiang)(xiang)晶閘(zha)(zha)管(guan)觸(chu)發板(ban)(ban)適用電(dian)(dian)(dian)路(lu)①三(san)相(xiang)(xiang)全控(kong)(kong)(kong)橋式可(ke)(ke)控(kong)(kong)(kong)整流(liu)(liu)電(dian)(dian)(dian)路(lu)。②帶平衡(heng)電(dian)(dian)(dian)抗器的(de)雙反星形可(ke)(ke)控(kong)(kong)(kong)整流(liu)(liu)電(dian)(dian)(dian)路(lu)。③變壓器原邊(bian)交(jiao)流(liu)(liu)調(diao)(diao)(diao)壓，副邊(bian)二(er)極管(guan)整流(liu)(liu)電(dian)(dian)(dian)路(lu)。④三(san)相(xiang)(xiang)零式整流(liu)(liu)電(dian)(dian)(dian)路(lu)。⑤三(san)相(xiang)(xiang)半控(kong)(kong)(kong)橋式可(ke)(ke)控(kong)(kong)(kong)整流(liu)(liu)電(dian)(dian)(dian)路(lu)。⑥三(san)相(xiang)(xiang)交(jiao)流(liu)(liu)相(xiang)(xiang)控(kong)(kong)(kong)調(diao)(diao)(diao)壓電(dian)(dian)(dian)路(lu)⑦三(san)相(xiang)(xiang)五柱式雙反星形可(ke)(ke)控(kong)(kong)(kong)硅整流(liu)(liu)電(dian)(dian)(dian)路(lu)三(san)相(xiang)(xiang)晶閘(zha)(zha)管(guan)觸(chu)發板(ban)(ban)正常使用條件(jian)(jian)(jian)⑴海拔高度(du)不超過(guo)2000M。⑵環境(jing)溫度(du)：-40℃-+50℃。⑶空氣(qi)比較大相(xiang)(xiang)對濕(shi)度(du)不超過(guo)90%(在相(xiang)(xiang)當(dang)于空氣(qi)溫度(du)20±5℃)。⑷運行地(di)點無(wu)導(dao)電(dian)(dian)(dian)塵埃，沒有腐蝕金屬和(he)(he)破(po)壞絕(jue)緣的(de)氣(qi)體或蒸汽(qi)。⑸無(wu)劇烈振動和(he)(he)沖擊。三(san)相(xiang)(xiang)晶閘(zha)(zha)管(guan)觸(chu)發板(ban)(ban)工作原理本控(kong)(kong)(kong)制(zhi)板(ban)(ban)是以工業級的(de)單片機為組成的(de)全數(shu)字控(kong)(kong)(kong)制(zhi)、數(shu)字觸(chu)發系統。

他發(fa)(fa)(fa)生在(zai)(zai)(zai)芯片外圓倒角(jiao)處，有細小光潔小孔。用(yong)(yong)放大鏡可(ke)看(kan)到(dao)倒角(jiao)面(mian)上有細細金屬物劃痕。這(zhe)是制(zhi)造廠家(jia)安(an)裝不慎(shen)所造成(cheng)的(de)(de)(de)(de)。它(ta)導(dao)(dao)致電(dian)(dian)(dian)(dian)壓(ya)擊穿。主要用(yong)(yong)途(tu)/晶閘(zha)(zha)管(guan)編(bian)輯(ji)普(pu)通(tong)(tong)晶閘(zha)(zha)管(guan)**基本(ben)的(de)(de)(de)(de)用(yong)(yong)途(tu)就(jiu)是可(ke)控整(zheng)流(liu)(liu)(liu)。大家(jia)熟悉(xi)的(de)(de)(de)(de)二極(ji)管(guan)整(zheng)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路屬于不可(ke)控整(zheng)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路。如(ru)果把(ba)二極(ji)管(guan)換成(cheng)晶閘(zha)(zha)管(guan)，就(jiu)可(ke)以構(gou)成(cheng)可(ke)控整(zheng)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路、逆(ni)(ni)變(bian)、電(dian)(dian)(dian)(dian)機調(diao)速、電(dian)(dian)(dian)(dian)機勵磁、無觸點(dian)開關及(ji)自動控制(zhi)等方面(mian)。現在(zai)(zai)(zai)我畫一個**簡(jian)單(dan)的(de)(de)(de)(de)單(dan)相半(ban)波可(ke)控整(zheng)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路〔圖(tu)(tu)(tu)4(a）〕。在(zai)(zai)(zai)正弦交(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)U2的(de)(de)(de)(de)正半(ban)周期(qi)間，如(ru)果VS的(de)(de)(de)(de)控制(zhi)極(ji)沒(mei)有輸入(ru)觸發(fa)(fa)(fa)脈(mo)沖(chong)(chong)Ug，VS仍(reng)然不能導(dao)(dao)通(tong)(tong)，只有在(zai)(zai)(zai)U2處于正半(ban)周，在(zai)(zai)(zai)控制(zhi)極(ji)外加(jia)觸發(fa)(fa)(fa)脈(mo)沖(chong)(chong)Ug時，晶閘(zha)(zha)管(guan)被觸發(fa)(fa)(fa)導(dao)(dao)通(tong)(tong)。現在(zai)(zai)(zai)，畫出(chu)它(ta)的(de)(de)(de)(de)波形(xing)(xing)圖(tu)(tu)(tu)〔圖(tu)(tu)(tu)4(c）及(ji)（d）〕，可(ke)以看(kan)到(dao)，只有在(zai)(zai)(zai)觸發(fa)(fa)(fa)脈(mo)沖(chong)(chong)Ug到(dao)來(lai)(lai)時，負載(zai)RL上才(cai)有電(dian)(dian)(dian)(dian)壓(ya)UL輸出(chu)（波形(xing)(xing)圖(tu)(tu)(tu)上陰影部(bu)分(fen)）。Ug到(dao)來(lai)(lai)得(de)早，晶閘(zha)(zha)管(guan)導(dao)(dao)通(tong)(tong)的(de)(de)(de)(de)時間就(jiu)早；Ug到(dao)來(lai)(lai)得(de)晚，晶閘(zha)(zha)管(guan)導(dao)(dao)通(tong)(tong)的(de)(de)(de)(de)時間就(jiu)晚。通(tong)(tong)過改變(bian)控制(zhi)極(ji)上觸發(fa)(fa)(fa)脈(mo)沖(chong)(chong)Ug到(dao)來(lai)(lai)的(de)(de)(de)(de)時間，就(jiu)可(ke)以調(diao)節負載(zai)上輸出(chu)電(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)(de)平均(jun)值(zhi)UL（陰影部(bu)分(fen)的(de)(de)(de)(de)面(mian)積(ji)大小）。在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)工技術中，常把(ba)交(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)半(ban)個周期(qi)定為180°，稱為電(dian)(dian)(dian)(dian)角(jiao)度(du)。這(zhe)樣，在(zai)(zai)(zai)U2的(de)(de)(de)(de)每個正半(ban)周，從(cong)零值(zhi)開始(shi)到(dao)觸發(fa)(fa)(fa)脈(mo)沖(chong)(chong)到(dao)來(lai)(lai)瞬(shun)間所經歷的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)角(jiao)度(du)稱為控制(zhi)角(jiao)α；在(zai)(zai)(zai)每個正半(ban)周內晶閘(zha)(zha)管(guan)導(dao)(dao)通(tong)(tong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)角(jiao)度(du)叫(jiao)導(dao)(dao)通(tong)(tong)角(jiao)θ。很明顯(xian)。逆(ni)(ni)導(dao)(dao)晶閘(zha)(zha)管(guan)的(de)(de)(de)(de)關斷時間幾(ji)微秒，工作(zuo)頻率達幾(ji)十(shi)千赫，優于快速晶閘(zha)(zha)管(guan)（FSCR）。

當(dang)(dang)(dang)選(xuan)擇替代晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，無論什么(me)參數，不要(yao)有(you)太(tai)多的(de)(de)左(zuo)邊距，它應該是盡(jin)可能(neng)接(jie)近的(de)(de)取代晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)參數，由于(yu)過度保證(zheng)金不造成浪(lang)費(fei)，而且有(you)時副作(zuo)(zuo)(zuo)用(yong)，即沒(mei)有(you)觸發(fa)，或不敏感等。另外，還(huan)要(yao)留意兩個(ge)晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)外形(xing)要(yao)相同，否(fou)則會給企業安裝管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理工作(zuo)(zuo)(zuo)發(fa)展帶來一(yi)(yi)些不利(li)。晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)工作(zuo)(zuo)(zuo)原理的(de)(de)陽極(ji)(ji)(ji)A和(he)陰極(ji)(ji)(ji)K，其陽極(ji)(ji)(ji)A和(he)陰極(ji)(ji)(ji)K與電(dian)(dian)源(yuan)和(he)負載連(lian)接(jie)，形(xing)成晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)主電(dian)(dian)路(lu)，晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)柵極(ji)(ji)(ji)G和(he)陰極(ji)(ji)(ji)與控制晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)裝置連(lian)接(jie)，形(xing)成晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)控制電(dian)(dian)路(lu)。晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)工作(zuo)(zuo)(zuo)條(tiao)件：1.當(dang)(dang)(dang)晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)承受反向陽極(ji)(ji)(ji)電(dian)(dian)壓時，無論門(men)(men)極(ji)(ji)(ji)電(dian)(dian)壓是多少，晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)都(dou)會被(bei)(bei)關閉。2.當(dang)(dang)(dang)所述晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)陽極(ji)(ji)(ji)電(dian)(dian)壓是正(zheng)(zheng)(zheng)向，在(zai)晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)柵極(ji)(ji)(ji)電(dian)(dian)壓是正(zheng)(zheng)(zheng)向傳導(dao)只的(de)(de)情況。3.晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)在(zai)導(dao)通(tong)情況下，只要(yao)有(you)一(yi)(yi)定的(de)(de)正(zheng)(zheng)(zheng)向影(ying)響陽極(ji)(ji)(ji)工作(zuo)(zuo)(zuo)電(dian)(dian)壓，不論門(men)(men)極(ji)(ji)(ji)電(dian)(dian)壓以及如何(he)，晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)同時保持(chi)導(dao)通(tong)，即晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)導(dao)通(tong)后，門(men)(men)極(ji)(ji)(ji)失去重要(yao)作(zuo)(zuo)(zuo)用(yong)。4.在(zai)晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)被(bei)(bei)導(dao)通(tong)，當(dang)(dang)(dang)所述主回路(lu)電(dian)(dian)壓（或電(dian)(dian)流）被(bei)(bei)減小到接(jie)近零，晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)關斷。普通(tong)晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SCR）靠(kao)門(men)(men)極(ji)(ji)(ji)正(zheng)(zheng)(zheng)信號觸發(fa)之后，撤掉信號亦能(neng)維(wei)持(chi)通(tong)態。吉林功率半(ban)導(dao)體igbt可控硅（晶(jing)(jing)(jing)(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)(zha)(zha)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)）MACMIC原裝現貨

可(ke)控硅(Silicon Controlled Rectifier) 簡稱SCR，是一種大功率電器(qi)元件，也(ye)稱晶閘管。福建中(zhong)頻爐可(ke)控硅（晶閘管）Infineon英(ying)飛(fei)凌全(quan)新原裝現貨

在(zai)(zai)恢(hui)(hui)(hui)復(fu)電(dian)流(liu)(liu)(liu)(liu)(liu)快速衰(shuai)減(jian)時(shi)(shi)(shi)，由(you)于外(wai)電(dian)路(lu)電(dian)感的(de)(de)作(zuo)用，會(hui)(hui)在(zai)(zai)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)兩端引起反(fan)向(xiang)(xiang)(xiang)(xiang)的(de)(de)尖峰電(dian)壓(ya)(ya)(ya)U。從(cong)正(zheng)向(xiang)(xiang)(xiang)(xiang)電(dian)流(liu)(liu)(liu)(liu)(liu)降為(wei)(wei)零，到反(fan)向(xiang)(xiang)(xiang)(xiang)恢(hui)(hui)(hui)復(fu)電(dian)流(liu)(liu)(liu)(liu)(liu)衰(shuai)減(jian)至接近于零的(de)(de)時(shi)(shi)(shi)間(jian)，就是(shi)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)的(de)(de)反(fan)向(xiang)(xiang)(xiang)(xiang)阻(zu)(zu)斷(duan)(duan)恢(hui)(hui)(hui)復(fu)時(shi)(shi)(shi)間(jian)t。[1]反(fan)向(xiang)(xiang)(xiang)(xiang)恢(hui)(hui)(hui)復(fu)過程(cheng)結(jie)束(shu)后，由(you)于載流(liu)(liu)(liu)(liu)(liu)子復(fu)合過程(cheng)比(bi)較慢，晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)要(yao)恢(hui)(hui)(hui)復(fu)其(qi)(qi)對(dui)反(fan)向(xiang)(xiang)(xiang)(xiang)電(dian)壓(ya)(ya)(ya)的(de)(de)阻(zu)(zu)斷(duan)(duan)能力(li)還需要(yao)一段時(shi)(shi)(shi)間(jian)，這(zhe)叫(jiao)做(zuo)反(fan)向(xiang)(xiang)(xiang)(xiang)阻(zu)(zu)斷(duan)(duan)恢(hui)(hui)(hui)復(fu)時(shi)(shi)(shi)間(jian)tgr。在(zai)(zai)反(fan)向(xiang)(xiang)(xiang)(xiang)阻(zu)(zu)斷(duan)(duan)恢(hui)(hui)(hui)復(fu)時(shi)(shi)(shi)間(jian)內如果重新(xin)對(dui)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)施加正(zheng)向(xiang)(xiang)(xiang)(xiang)電(dian)壓(ya)(ya)(ya)，晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)會(hui)(hui)重新(xin)正(zheng)向(xiang)(xiang)(xiang)(xiang)導通(tong)，而(er)不受門(men)極電(dian)流(liu)(liu)(liu)(liu)(liu)控(kong)(kong)制而(er)導通(tong)。所(suo)以在(zai)(zai)實際(ji)(ji)應用中，需對(dui)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)施加足夠(gou)長時(shi)(shi)(shi)間(jian)的(de)(de)反(fan)壓(ya)(ya)(ya)，使晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)充分(fen)恢(hui)(hui)(hui)復(fu)其(qi)(qi)對(dui)正(zheng)向(xiang)(xiang)(xiang)(xiang)電(dian)壓(ya)(ya)(ya)的(de)(de)阻(zu)(zu)斷(duan)(duan)能力(li)，電(dian)路(lu)才能可靠(kao)工(gong)作(zuo)。晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)的(de)(de)電(dian)路(lu)換向(xiang)(xiang)(xiang)(xiang)關斷(duan)(duan)時(shi)(shi)(shi)間(jian)t定(ding)(ding)義為(wei)(wei)t與t之和(he)(he)，即t=t+t除(chu)了開(kai)通(tong)時(shi)(shi)(shi)間(jian)t、關斷(duan)(duan)時(shi)(shi)(shi)間(jian)t及觸發電(dian)流(liu)(liu)(liu)(liu)(liu)IGT外(wai)，本文比(bi)較關注(zhu)的(de)(de)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)的(de)(de)其(qi)(qi)它主要(yao)參數包括(kuo)：斷(duan)(duan)態（反(fan)向(xiang)(xiang)(xiang)(xiang)）重復(fu)峰值電(dian)壓(ya)(ya)(ya)U（U）：是(shi)在(zai)(zai)門(men)極斷(duan)(duan)路(lu)而(er)結(jie)溫為(wei)(wei)額定(ding)(ding)值時(shi)(shi)(shi)，允(yun)許(xu)重復(fu)加在(zai)(zai)器件上(shang)的(de)(de)正(zheng)向(xiang)(xiang)(xiang)(xiang)（反(fan)向(xiang)(xiang)(xiang)(xiang)）峰值電(dian)壓(ya)(ya)(ya)。通(tong)常(chang)取晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)的(de)(de)UDRM和(he)(he)URRM中較小的(de)(de)標值作(zuo)為(wei)(wei)該器件的(de)(de)額定(ding)(ding)電(dian)壓(ya)(ya)(ya)。通(tong)態平(ping)均(jun)電(dian)流(liu)(liu)(liu)(liu)(liu)I：國際(ji)(ji)規(gui)定(ding)(ding)通(tong)態平(ping)均(jun)電(dian)流(liu)(liu)(liu)(liu)(liu)為(wei)(wei)晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)在(zai)(zai)環境(jing)溫度(du)為(wei)(wei)40℃和(he)(he)規(gui)定(ding)(ding)的(de)(de)冷卻(que)狀態下，穩定(ding)(ding)結(jie)溫不超過額定(ding)(ding)結(jie)溫時(shi)(shi)(shi)所(suo)允(yun)許(xu)流(liu)(liu)(liu)(liu)(liu)過的(de)(de)**大工(gong)頻(pin)正(zheng)弦半波電(dian)流(liu)(liu)(liu)(liu)(liu)的(de)(de)平(ping)均(jun)值。這(zhe)也是(shi)標稱其(qi)(qi)額定(ding)(ding)電(dian)流(liu)(liu)(liu)(liu)(liu)的(de)(de)參數。福建中頻(pin)爐(lu)可控(kong)(kong)硅（晶(jing)(jing)(jing)(jing)閘(zha)(zha)(zha)管(guan)(guan)）Infineon英飛(fei)凌全新(xin)原裝現貨

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