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href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_dgdq/">電工電氣</a>?<a href="http://m.cdcfah.com/cp/third-dgdq_kcdgdqcp/">庫存電工電氣產(chǎn)品</a>?北京**率DC-DC直流電源生產(chǎn)廠家服務(wù)為先深圳市保益新能電氣供應(yīng)</p><div id="ihebypj" class="leftbox clearfix"><h1>北京**率DC-DC直流電源生產(chǎn)廠家服務(wù)為先深圳市保益新能電氣供應(yīng)</h1><div id="jtqxzqf" class="proBig"><div id="f7ydkro" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339053063397/3579057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ynkhjg3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339053063397/3579057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tmjwykr" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京**率DC-DC直流電源生產(chǎn)廠家,DC-DC直流電源</p><p><span>***更新：</span>2021-01-28 02:09:08</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2c2xkho" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機: </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號德泰工業(yè)區(qū)1號廠房4層402</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="8mipr2o" class="page-proshow02"><p class="title">詳細說明</p><div id="2lskw7r" class="box"><p><p style="text-indent:25px">DC-DC直流電源穩(wěn)壓電源：1、3～25V電壓可調(diào)穩(wěn)壓電路此穩(wěn)壓電源可調(diào)范圍在3.5V～25V之間任意調(diào)節(jié)，輸出電流大，并采用可調(diào)穩(wěn)壓管式電路，從而得到滿意平穩(wěn)的輸出電壓。工作原理：經(jīng)整流濾波后直流電壓由R1提供給調(diào)整管的基極，使調(diào)整管導(dǎo)通，在V1導(dǎo)通時電壓經(jīng)過RP、R2使V2導(dǎo)通，接著V3也導(dǎo)通，這時V1、V2、 V3的發(fā)射極和集電極電壓不再變化（其作用完全與穩(wěn)壓管一樣）。調(diào)節(jié)RP，可得到平穩(wěn)的輸出電壓，R1、RP、R2與R3比值決定本電路輸出的電壓值。2、無論檢修電腦還是電子制作都離不開穩(wěn)壓電源，下面介紹一款直流電壓從3V到15V連續(xù)可調(diào)的穩(wěn)壓電源，zui大電流可達10A，該電路用了具有溫度補償特性的，北京**率DC-DC直流電源生產(chǎn)廠家，北京**率DC-DC直流電源生產(chǎn)廠家，高精度的標準電壓源集成電路TL431，使穩(wěn)壓精度更高，如果沒有特殊要求，基本能滿足正常維修使用，北京**率DC-DC直流電源生產(chǎn)廠家。DC-DC直流電源分立元件組成的線性直流穩(wěn)壓電路，要求達到“簡單應(yīng)用”層次。北京**率DC-DC直流電源生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京**率DC-DC直流電源生產(chǎn)廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339053063397/3579057.png"></div><p style="text-indent:25px">DC-DCDC-DC直流電源：DCDC轉(zhuǎn)換開關(guān)型穩(wěn)壓電路設(shè)計方案幾種DCDC轉(zhuǎn)換電路都屬于串聯(lián)反饋式穩(wěn)壓電路，在此種工作模式中集成穩(wěn)壓器中調(diào)整管工作在線性放大狀態(tài)，因此當(dāng)負載電流大時，損耗比較大，即轉(zhuǎn)換效率不高。因此使用集成穩(wěn)壓器的電源電路功率都不會很大，一般只有2-3W，這種設(shè)計方案*適合于小功率電源電路。采用開關(guān)電源芯片設(shè)計的DCDC轉(zhuǎn)換電路轉(zhuǎn)化效率高，適用于較大功率電源電路。目前得到了普遍的應(yīng)用，常用的分為非隔離式的開關(guān)電源與隔離式的開關(guān)電源電路。DCDC轉(zhuǎn)換開關(guān)型穩(wěn)壓電路設(shè)計方案，采用開關(guān)電源芯片設(shè)計的DCDC轉(zhuǎn)換電路轉(zhuǎn)化效率高，適用于較大功率電源電路。目前得到了普遍的應(yīng)用，常用的分為非隔離式的開關(guān)電源與隔離式的開關(guān)電源電路。當(dāng)然開關(guān)電源基本的拓撲包括降壓型、升壓型、升降壓型及反激、正激、橋式變化等等。北京**率DC-DC直流電源生產(chǎn)廠家DC-DC直流電源停用相應(yīng)保護裝置并做好安全措施后執(zhí)行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京**率DC-DC直流電源生產(chǎn)廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338812711808/1470393.png"></div><p style="text-indent:25px">DC-DCDC-DC直流電源：串聯(lián)型穩(wěn)壓電源的電路認識串聯(lián)型穩(wěn)壓電路屬直流穩(wěn)壓電源中的一種，其實是在三端穩(wěn)壓器出現(xiàn)之前比較常用的直流供電方法，在三端穩(wěn)壓器出現(xiàn)之前，串聯(lián)穩(wěn)壓器通常有OP放大器和穩(wěn)壓二極管構(gòu)成誤差檢測電路，一般電路中OP放大器的反向輸入端子與輸出電壓的檢測信號相連，正向輸入端子與基準電壓Vref相連，Vs=Vout*R2/(R1+R2)。由于放大信號ΔVs為負值，控制晶體管的基級電壓下降，因此輸出電壓減小在正常情況下，必有Vref=Vs=Vout*R2/(R1+R2)，調(diào)整R1，R2之比可設(shè)定所需要的輸出電壓值。其實負載大小可以把三極管換成達林頓管等等，這種串聯(lián)型穩(wěn)壓電路做組成的直流穩(wěn)壓電源處理不當(dāng)，極易產(chǎn)生振蕩?，F(xiàn)在沒有一定模擬功底的工程師，一般現(xiàn)在不用這種方法，而是直接采用集成的三端穩(wěn)壓電路，進行DC/DC轉(zhuǎn)換電路的使用。</p><p style="text-indent:25px">DC-DC直流電源穩(wěn)壓電路的工作原理。1.單相整流電路，要求達到“簡單應(yīng)用”層次。2.濾波電路，要求達到“簡單應(yīng)用”層次。3.分立元件組成的線性直流穩(wěn)壓電路，要求達到“簡單應(yīng)用”層次。4.單片集成串聯(lián)型線性直流穩(wěn)壓電路，要求達到“領(lǐng)會”層次。5.開關(guān)型集成穩(wěn)壓電路，要求達到“領(lǐng)會”層次。重點：分立元件組成的直流穩(wěn)壓電路、單片集成串聯(lián)型線性直流穩(wěn)壓電路。難點：開關(guān)型集成穩(wěn)壓電路。一個穩(wěn)定的DC-DC直流電源是電子裝置必不可少的組成部分，它由如下幾部分組成:整流電路是將工頻交流電轉(zhuǎn)換為脈動直流電。濾波電路將脈動直流中的交流成分濾除，減少交流成分，增加直流成分。穩(wěn)壓電路采用負反饋技術(shù)，對整流后的直流電壓進一步進行穩(wěn)定。DC-DC直流電源是一種新研制的小型化電源開關(guān)模塊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京**率DC-DC直流電源生產(chǎn)廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338539919003/532555.png"></div><p style="text-indent:25px">DC-DC電源波紋的測量方法及儀器要求：設(shè)置耦合方式為交流耦合，方便測量(以更小檔位來仔細觀測紋波，不關(guān)心直流電平)。保證探頭接地盡量短(測量紋波動輒上百mV的主要原因就是接地線太長)，盡量使用探頭自帶的原裝測試短針。如果沒有測試短針，可以拆除探頭的接地線和外殼，露出探頭地殼，自制接地線纏繞在探頭地殼上，保證接地線長度小于1cm。示波器地懸空，只通過探頭地與測試信號的參考點共地，不要通過其他方式與測試設(shè)備共地，這樣會給紋波測量引入很大的地噪聲。例如：當(dāng)示波器和其他儀器共插線板時，其他儀器的開關(guān)可能通過接地線給測試帶來噪聲干擾。DC-DC直流電源各斷路器應(yīng)配備跳閘報警觸點。北京**率DC-DC直流電源生產(chǎn)廠家</p><p style="text-indent:25px">DC-DC直流電源在無法快速判別接地故障點時，應(yīng)采用便攜式絕緣檢測設(shè)備進行探查。北京**率DC-DC直流電源生產(chǎn)廠家</p><p style="text-indent:25px">DC-DC直流電源基本原理：DC-DC直流電源中的非靜電力是由負極指向正極的。當(dāng)DC-DC直流電源與外電路接通后，在電源外部（外電路），由于電場力的推動，形成由正極到負極的電流。而在電源內(nèi)部（內(nèi)電路），非靜電力的作用則使電流由負極流到正極，從而使電荷的流動形成閉合的循環(huán)。表現(xiàn)電源本身的一個重要特征量是電源的電動勢，它等于單位正電荷從負極通過電源內(nèi)部移到正極時非靜電力所作的功。當(dāng)電源的內(nèi)電阻可以忽略不計時，可以認為電源的電動勢在量值上近似地等于電源兩極間的電位差或電壓。為了取得較高的直流電壓，常將DC-DC直流電源串聯(lián)使用，這時總電動勢為各電源的電動勢之和，總內(nèi)阻也為各電源內(nèi)電阻之和。由于內(nèi)阻增大，一般只能用于所需電流強度較小的電路。為了取得較大的電流強度，可以將等電動勢的DC-DC直流電源并聯(lián)使用，這時總電動勢即為單個電源的電動勢，總內(nèi)阻為各電源內(nèi)電阻的并聯(lián)值。北京**率DC-DC直流電源生產(chǎn)廠家</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3040788.html</p></div></div></div></div></div><div id="gfn8vkh" class="page-right twoColRt"><div id="fph7p7p" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qpmoli8" class="recomPic likePro"><a href="http://m.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配件哪家強信息推薦自業(yè)物資供應(yīng)" 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