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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lkr78ie" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077051976606410_baomeng7_5932951.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zxzbne3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>山東小功率可控硅模塊哪家好,可控硅模塊</p><p><span>***更新：</span>2021-02-07 00:13:05</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="buwo3fr" 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: </span>0533-7369626</p><p><span>地址: </span>淄博市臨淄區(qū)桑坡路南首2-20號 </p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="zdamv8z" class="page-proshow02"><p class="title">詳細說明</p><div id="nhebnjk" class="box"><p><p> 可控硅模塊的出現(xiàn)已經(jīng)歷史悠久，它的出現(xiàn)也幫助人們解決了很多難題，憑借它的優(yōu)勢，使可控硅模塊在電氣行業(yè)中非常的受歡迎，山東小功率可控硅模塊哪家好，下面正高來詳細的說下可控硅模塊。 </p> <p> <br /> </p> <p> 可控硅模塊通常被稱之為功率半導(dǎo)體模塊（semiconductormodule），山東小功率可控硅模塊哪家好。剛開始是在1970年出現(xiàn)在電力電子技術(shù)領(lǐng)域，是采用模塊封裝形式，具有三個PN結(jié)的四層結(jié)構(gòu)的大功率半導(dǎo)體器件。 </p> <p> 可控硅模塊的優(yōu)點體積小、重量輕、結(jié)構(gòu)緊湊、可靠性高、外接線簡單，山東小功率可控硅模塊哪家好、互換性好、便于維修和安裝；結(jié)構(gòu)重復(fù)性好，裝置的機械設(shè)計可以簡化，價格比分立器件低等諸多優(yōu)點，因而在一誕生就受到了各大電力半導(dǎo)體廠家的熱捧，并因此得到長足發(fā)展。淄博正高電氣有限公司真誠希望與您攜手、共創(chuàng)輝煌。山東小功率可控硅模塊哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東小功率可控硅模塊哪家好,可控硅模塊" src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077051976606410_baomeng7_5932951.jpg"></div><p> 雙向可控硅晶閘管使用中，應(yīng)特別注意以下事項： </p> <p> <br /> </p> <p> 1.靈敏度 </p> <p> 雙向可控硅是一個三端元件，但我們不再稱其兩極為陰陽極，而是稱作T1和T2極，G為控制極，其控制極上所加電壓無論為正向觸發(fā)脈沖或負向觸發(fā)脈沖均可使控制極導(dǎo)通，但是觸發(fā)靈敏度互不相同，即保證雙向可控硅能進入導(dǎo)通狀態(tài)的較小門極電流IGT是有區(qū)別的。 </p> <p> 2.可控硅過載的保護 </p> <p> 可控硅元件優(yōu)點很多，但是它過載能力差，短時間的過流，過壓都會造成元件損壞，因此為保證元件正常工作，需有條件： </p> <p> （1）外加電壓下允許超過正向轉(zhuǎn)折電壓，否則控制極將不起作用； </p> <p> （2）可控硅的通態(tài)平均電流從安全角度考慮一般按較大電流的1.5~2倍來取； </p> <p> （3）為保證控制極可靠觸發(fā)，加到控制極的觸發(fā)電流一般取大于其額值，除此以外，還必須采取保護措施，一般對過流的保護措施是在電路中串入快速熔斷器，其額定電流取可控硅電流平均值的1.5倍左右，其接入的位置可在交流側(cè)或直流側(cè)，當在交流側(cè)時額定電流取大些，一般多采用前者，過電壓保護常發(fā)生在存在電感的電路上，或交流側(cè)出現(xiàn)干擾的浪涌電壓或交流側(cè)的暫態(tài)過程產(chǎn)生的過壓。由于，過電壓的尖峰高，作用時間短，常采用電阻和電容吸收電路加以。 </p> <p> <br /> 山東小功率可控硅模塊哪家好淄博正高電氣有限公司擁有業(yè)內(nèi)**人士和高技術(shù)人才。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東小功率可控硅模塊哪家好,可控硅模塊" src="http://tyunfile.71360.com/UpLoadFile/2020/1/6/11/637139081919615024_baomeng7_6693928.jpg"></div><p> 可控硅模塊的特性 </p> <p> 單向晶閘管模塊具有其獨特的特性：當陽極連接到反向電壓時，或陽極連接到正向電壓時，但控制極不增加電壓，則不會導(dǎo)通，當陽極和控制極同時連接到正向電壓時，將變?yōu)榻油顟B(tài)。一旦接通，控制電壓將失去控制作用。無論有無控制電壓，無論控制電壓的極性如何，都將始終處于接通狀態(tài)。若要關(guān)閉，只能將陽極電壓降到某個臨界值或反向。 </p> <p> 雙向晶閘管模塊的管腳大多按T1、T2和G的順序從左到右排列（當電極管腳朝著帶有字符的一側(cè)向下時）。當改變施加到控制極G的觸發(fā)脈沖的大小或時間時，其接通電流的大小可以改變。 </p><p> 正高可控硅分單向可控硅、雙向可控硅。單向可控硅有陽極A、陰極K、控制極G三個引出腳。雙向可控硅有兩個陽極：一陽極A1(T1)，二陽極A2(T2)、控制極G三個引出腳。 </p> <p> 只有當單向可控硅陽極A與陰極K之間加有正向電壓，同時控制極G與陰極間加上所需的正向觸發(fā)電壓時，方可被觸發(fā)導(dǎo)通。此時A、K間呈低阻導(dǎo)通狀態(tài)，陽極A與陰極K間壓降約1V。單向可控硅導(dǎo)通后，控制器G即使失去觸發(fā)電壓，只要陽極A和陰極K之間仍保持正向電壓，單向可控硅繼續(xù)處于低阻導(dǎo)通狀態(tài)。只有把陽極A電壓拆除或陽極A、陰極K間電壓極性發(fā)生改變(交流過零)時，單向可控硅才由低阻導(dǎo)通狀態(tài)轉(zhuǎn)換為高阻截止狀態(tài)。單向可控硅一旦截止，即使陽極A和陰極K間又重新加上正向電壓，仍需在控制極G和陰極K間有重新加上正向觸發(fā)電壓方可導(dǎo)通。單向可控硅的導(dǎo)通與截止狀態(tài)相當于開關(guān)的閉合與斷開狀態(tài)，用它可制成無觸點開關(guān)。不斷開發(fā)新的產(chǎn)品，并建立了完善的服務(wù)體系。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東小功率可控硅模塊哪家好,可控硅模塊" src="http://tyunfile.71360.com/UpLoadFile/2019/10/26/16/637077051988149226_baomeng7_1497931.jpg"></div><p> 實際上，可控硅模塊元件的結(jié)溫不容易直接測量，因此不能用它作為是否超溫的判據(jù)。通過控制模塊底板的溫度（即殼溫Tc）來控制結(jié)溫是一種有效的方法。由于PN結(jié)的結(jié)溫Tj和殼溫Tc存在著一定的溫度梯度，知道了殼溫也就知道了結(jié)溫，而相當高殼溫Tc是限定的，由產(chǎn)品數(shù)據(jù)表給出。借助溫控開關(guān)可以很容易地測量到與散熱器接觸處的模塊底板溫度（溫度傳感元件應(yīng)置于模塊底板溫度相當高的位置）。從溫控天關(guān)測量到的殼溫可以判斷模塊的工作是否正常。若在線路中增加一個或兩個溫度控制電路，分別控制風機的開啟或主回路的通斷（停機），就可以有效地保證晶閘管模塊在額定結(jié)溫下正常工作。 </p> <p> 需要指出的是，溫控開關(guān)測量到的溫度是模塊底板表面的溫度，易受環(huán)境、空氣對流的影響，與模塊和散熱器的接觸面上的溫度Tc，還有一定的差別（大約低幾度到十幾度），因此其實際控制溫度應(yīng)低于規(guī)定的Tc值。用戶可以根據(jù)實際情況和經(jīng)驗決定控制的溫度。淄博正高電氣有限公司不斷從事技術(shù)革新，改進生產(chǎn)工藝，提高技術(shù)水平。山東小功率可控硅模塊哪家好</p><p style="text-indent:25px">淄博正高電氣有限公司銳意進取，持續(xù)創(chuàng)新為各行各業(yè)提供專業(yè)化服務(wù)。山東小功率可控硅模塊哪家好</p><p> 可控硅模塊是有PNPN四層半導(dǎo)體構(gòu)成的元件，有三個電極，陽極a，陰極K和控制機G所構(gòu)成的。 </p> <p> 可控硅模塊的應(yīng)用領(lǐng)域模塊應(yīng)用詳細說明介紹： </p> <p> 可控硅模塊應(yīng)用于控溫、調(diào)光、勵磁、電鍍、電解、充放電、電焊機、等離子拉弧、逆變電源等需對電力能量大小進行調(diào)整和變換的場合，如工業(yè)、通訊、**等各類電氣控制、電源等，根據(jù)還可通過可控硅模塊的控制端口與多功能控制板連接，實現(xiàn)穩(wěn)流、穩(wěn)壓、軟啟動等功能，并可實現(xiàn)過流、過壓、過溫、缺相等保護功能。山東小功率可控硅模塊哪家好</p> <span style="display:none;"></span><span style="display:none;"></span><p style="text-indent:25px">淄博正高電氣有限公司是一家有著雄厚實力背景、信譽可靠、勵精圖治、展望未來、有夢想有目標，有組織有體系的公司，堅持于帶領(lǐng)員工在未來的道路上大放光明，攜手共畫藍圖，在山東省淄博市等地區(qū)的電子元器件行業(yè)中積累了大批忠誠的客戶粉絲源，也收獲了良好的用戶口碑，為公司的發(fā)展奠定的良好的行業(yè)基礎(chǔ)，也希望未來公司能成為*****，努力為行業(yè)領(lǐng)域的發(fā)展奉獻出自己的一份力量，我們相信精益求精的工作態(tài)度和不斷的完善創(chuàng)新理念以及自強不息，斗志昂揚的的企業(yè)精神將**正高電氣供應(yīng)和您一起攜手步入輝煌，共創(chuàng)佳績，一直以來，公司貫徹執(zhí)行科學管理、創(chuàng)新發(fā)展、誠實守信的方針，員工精誠努力，協(xié)同奮取，以品質(zhì)、服務(wù)來贏得市場，我們一直在路上！</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3194852.html</p></div></div></div></div></div><div id="x90iy5a" class="page-right twoColRt"><div id="p99d6iq" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="5d9fstz" class="recomPic 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