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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="3moqnet" class="twoCol"><div id="qwtlnu7" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/third-dzyqj_kkg(jzg)/">可控硅(晶閘管)</a>?廣東反并聯(lián)晶閘管模塊分類淄博正高電氣供應(yīng)</p><div id="8rdf8ak" class="leftbox clearfix"><h1>廣東反并聯(lián)晶閘管模塊分類淄博正高電氣供應(yīng)</h1><div id="2iac9nf" class="proBig"><div id="j9rlfcg" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077052180966053_baomeng7_3638858.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="amdvpqx" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077052180966053_baomeng7_3638858.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ik2eg2v" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣東反并聯(lián)晶閘管模塊分類</p><p><span>***更新：</span>2020-05-22 18:26:30</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gxbd3z2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">淄博正高電氣有限公司</a></p><p><span>聯(lián)系人：</span>竇新勇</p><p><span>郵箱: </span>zhenggao168@163.com</p><p><span>電話: </span>15550320286</p><p><span>傳真: </span>0533_7369627</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0533-7369626</p><p><span>地址: </span>淄博市臨淄區(qū)桑坡路南首2-20號(hào) </p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="tnkrgpw" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="e8jgda3" class="box"><p><p> 晶閘管模塊也被稱為晶體閘流管，也被稱為可控硅模塊：它是一種功率半導(dǎo)體器件。它具有容量大、效率高、可控性好、使用壽命長(zhǎng)、體積小等優(yōu)點(diǎn)。它是弱電控制與受控強(qiáng)電之間的橋梁。從節(jié)能的角度看，廣東反并聯(lián)晶閘管模塊分類，電力電子技術(shù)被稱為新的電氣技術(shù)。我國(guó)能源利用率相對(duì)較低。按國(guó)民生產(chǎn)單位產(chǎn)值能耗計(jì)算，廣東反并聯(lián)晶閘管模塊分類。因此，所以晶閘管為**的電控裝置是我國(guó)有效節(jié)能的重要措施。 </p> <p> 晶閘管模塊是過(guò)去市場(chǎng)上常用的一種集成模塊。根據(jù)不同的電流規(guī)格，它可以形成各種形式和電流規(guī)格的電路。MTC模塊是一種單臂橋式模塊，廣東反并聯(lián)晶閘管模塊分類。根據(jù)芯片電流規(guī)格，它可以形成三個(gè)不同功率的（單）交（整）流電路。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東反并聯(lián)晶閘管模塊分類" src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077052180966053_baomeng7_3638858.jpg"></div><p> 晶體閘流管工作過(guò)程編輯晶閘管是四層三端器件，它有J1、J2、J3三個(gè)PN結(jié)圖1，可以把它中間的NP分成兩部分，構(gòu)成一個(gè)PNP型三極管和一個(gè)NPN型三極管的復(fù)合管當(dāng)晶閘管承受正向陽(yáng)極電壓時(shí)，為使晶閘管導(dǎo)通，必須使承受反向電壓的PN結(jié)J2失去阻擋作用。因此，兩個(gè)互相復(fù)合的晶體管電路，當(dāng)有足夠的門極電流Ig流入時(shí)，就會(huì)形成強(qiáng)烈的正反饋，造成兩晶體管飽和導(dǎo)通，晶體管飽和導(dǎo)通。設(shè)PNP管和NPN管的集電極電流相應(yīng)為Ic1和Ic2；發(fā)射極電流相應(yīng)為Ia和Ik；電流放大系數(shù)相應(yīng)為a1=Ic1/Ia和a2=Ic2/Ik，設(shè)流過(guò)J2結(jié)的反相漏電電流為Ic0,晶閘管的陽(yáng)極電流等于兩管的集電極電流和漏電流的總和：Ia=Ic1+Ic2+Ic0或Ia=a1Ia+a2Ik+Ic0若門極電流為Ig,則晶閘管陰極電流為Ik=Ia+Ig從而可以得出晶閘管陽(yáng)極電流為：I=(Ic0+Iga2)/（1-（a1+a2））（1—1）式硅PNP管和硅NPN管相應(yīng)的電流放大系數(shù)a1和a2隨其發(fā)射極電流的改變而急劇變化如圖3所示。當(dāng)晶閘管承受正向陽(yáng)極電壓，而門極未受電壓的情況下，式（1—1）中，Ig=0,(a1+a2)很小，故晶閘管的陽(yáng)極電流Ia≈Ic0晶閘關(guān)處于正向阻斷狀態(tài)。當(dāng)晶閘管在正向陽(yáng)極電壓下。從門極G流入電流Ig,由于足夠大的Ig流經(jīng)NPN管的發(fā)射結(jié)，從而提高起點(diǎn)流放大系數(shù)a2。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東反并聯(lián)晶閘管模塊分類" src="http://tyunfile.71360.com/UpLoadFile/baomeng7/2020/1/637139082658869825/6371390826588698257676812.jpg"></div><p> 硒堆的特點(diǎn)是其動(dòng)作電壓和溫度有關(guān)，溫度越低耐壓越高；另外是硒堆具有自恢復(fù)特性，能多次使用，當(dāng)過(guò)電壓動(dòng)作后硒基片上的灼傷孔被溶化的硒重新覆蓋，又重新恢復(fù)其工作特性。壓敏電阻是以氧化鋅為基體的金屬氧化物非線性電阻，其結(jié)構(gòu)為兩個(gè)電極，電極之間填充的粒徑為10~50μm的不規(guī)則的ZNO微結(jié)晶，結(jié)晶粒間是厚約1μm的氧化鉍粒界層。這個(gè)粒界層在正常電壓下呈高阻狀態(tài)，只有很小的漏電流，其值小于100μA。當(dāng)加上電壓時(shí)，引起了電子雪崩，粒界層迅速變成低阻抗，電流迅速增加，泄漏了能量，了過(guò)電壓，從而使晶閘管得到保護(hù)。浪涌過(guò)后，粒界層又恢復(fù)為高阻態(tài)。壓敏電阻的特性主要由下面幾個(gè)參數(shù)來(lái)表示。標(biāo)稱電壓：指壓敏電阻流過(guò)1mA直流電流時(shí)，其兩端的電壓值。通流容量：是用前沿8微秒、波寬20微秒的波形沖擊電流，每隔5分鐘沖擊1次，共沖擊10次，標(biāo)稱電壓變化在-10[[[%]]]以內(nèi)的比較大沖擊電流值來(lái)表示。因?yàn)檎５膲好綦娮枇＝鐚又挥幸欢ù笮〉姆烹娙萘亢头烹姶螖?shù)，標(biāo)稱電壓值不僅會(huì)隨著放電次數(shù)增多而下降，而且也隨著放電電流幅值的增大而下降，當(dāng)大到某一電流時(shí)，標(biāo)稱電壓下降到0，壓敏電阻出現(xiàn)穿孔，甚至炸裂；因此必須限定通流容量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東反并聯(lián)晶閘管模塊分類" src="http://tyunfile.71360.com/UpLoadFile/2020/1/6/11/637139082182506727_baomeng7_9375187.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/5910.html</p></div></div></div></div></div><div id="qkh7cph" class="page-right twoColRt"><div id="ispe22x" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2rjgnkr" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ynk7byv" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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