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class="twoCol"><div id="hb48z3f" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dianyuan/">電源</a>?<a href="http://www.cdcfah.com/cp/third-dianyuan_qtdy/">其他電源</a>?嘉定區(qū)大功率電源模塊哪家便宜服務(wù)為先上海多商電子供應(yīng)</p><div id="qkjqxra" class="leftbox clearfix"><h1>嘉定區(qū)大功率電源模塊哪家便宜服務(wù)為先上海多商電子供應(yīng)</h1><div id="hlf8uro" class="proBig"><div id="8dhzgkg" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060755164706/6585667.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rwqxzln" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060755164706/6585667.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jiasel2" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>嘉定區(qū)大功率電源模塊哪家便宜,大功率電源模塊</p><p><span>***更新：</span>2021-01-31 02:17:05</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rvspcol" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海多商電子有限公司</a></p><p><span>聯(lián)系人：</span>吳加斌</p><p><span>郵箱: </span>wu867@126.com</p><p><span>電話: </span>18121221687</p><p><span>傳真: </span>021_69585559</p><p><span>網(wǎng)址: </span>http://www.10000kw.com</p><p><span>手機(jī): </span>021-69585559</p><p><span>地址: </span>上海市嘉定區(qū)科福路358號4號樓4樓</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="kzrjg3w" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tx28bif" class="box"><p><p style="text-indent:25px">從較小的物聯(lián)網(wǎng)（IoT）家庭自動化傳感器到較大的工業(yè)機(jī)器，每個電路都需要電力。電源設(shè)計需要下一番功夫，而且電源電路會占用電路板空間。但在許多應(yīng)用中，之后用戶意識不到更好的電源會帶來什么好處。設(shè)計工作可以說是完全不受重視，嘉定區(qū)大功率電源模塊哪家便宜。大功率電源模塊是一種經(jīng)過測試的完整電源，兼具低噪聲，嘉定區(qū)大功率電源模塊哪家便宜、高效率和緊湊布局等優(yōu)勢，因此在這些情況下，可使用電源模塊來省去設(shè)計工作。大功率電源模塊是置于印刷電路板（PCB）上某個封裝內(nèi)的**元件，其中包含整個開關(guān)電源（含電感）。脈寬調(diào)制（PWM）控制器，嘉定區(qū)大功率電源模塊哪家便宜、MOSFET驅(qū)動器、功率MOSFET、反饋網(wǎng)絡(luò)和磁性元件都包含在同一個封裝內(nèi)。負(fù)載電流的大小是決定功率的關(guān)鍵。嘉定區(qū)大功率電源模塊哪家便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家便宜,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060755164706/6585667.png"></div><p style="text-indent:25px">一種大功率電源模塊老煉方法，包括步驟:獲取大功率電源模塊殼溫工作溫度范圍，設(shè)置散熱裝置；確定大功率電源模塊殼溫測量點定位；確定并根據(jù)大功率電源模塊測量參考溫度的不同，進(jìn)行分組；對每組大功率電源模塊進(jìn)行老煉試驗，根據(jù)試驗結(jié)果，確定散熱裝置型號。在一些實施例中，所述散熱裝置采用熱傳導(dǎo)和風(fēng)冷結(jié)合的方式;其中，所述的熱傳導(dǎo)通過散熱片接觸大功率電源模塊自帶散熱基板來傳導(dǎo)熱量并且根據(jù)不同型號規(guī)格電源模塊選擇對應(yīng)的不同尺寸的散熱片作為仿真散熱片；另外，所述的風(fēng)冷通過調(diào)節(jié)風(fēng)扇風(fēng)速來實現(xiàn)對大功率電源模塊的散熱。在一些實施例中，所述確定大功率電源模塊殼溫測量點定位。北京大功率電源模塊價格便宜嗎大功率電源模塊輸出端負(fù)載過輕，輕于10%的額定負(fù)載造成電壓偏高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家便宜,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060592945780/7659586.png"></div><p style="text-indent:25px">大功率電源模塊是系統(tǒng)與外部接觸、接口的，外部傳來的浪涌都經(jīng)過大功率電源模塊，所以需要浪涌防護(hù)電路。由于大功率電源模塊體積小，集成度高，內(nèi)部的控制芯片和晶體管等器件較大耐壓和較大電流都比較極限，一個浪涌電壓過來可能就使模塊損壞失效，導(dǎo)致整個系統(tǒng)的癱瘓，即使沒有立馬損壞，器件受到應(yīng)力沖擊，也會影響壽命和可靠性，所以為了保證電源模塊持續(xù)可靠的應(yīng)用，一般都需要加上浪涌防護(hù)電路。大功率電源模塊受限于體積小，很多模塊內(nèi)部不能加上防浪涌電路，所以需要在模塊的外部加上防浪涌電路。</p><p style="text-indent:25px">由于電源模塊越趨于小型化，功率密度相應(yīng)越來越高，大功率電源模塊有關(guān)熱設(shè)計方面的問題尤其突出。特別是對使用有電解電容的電源模塊，高溫會使電解電容的電解液加速消耗，有效減少電解電容的壽命。高溫會使元器件材料加速老化，例如使得變壓器漆包線的絕緣特性降低，導(dǎo)致絕緣耐壓不良甚至造成匝間短路。因此好的熱設(shè)計不僅可延長大功率電源模塊和其周圍元器件的使用壽命，還可使整個產(chǎn)品發(fā)熱均勻，減少故障的發(fā)生。所以除了基本性能參數(shù)測試，多方面的高低溫測試，電應(yīng)力和熱應(yīng)力測試，保證足夠的降額設(shè)計要求，并通過長時間的老化測試，才可以判斷大功率電源模塊是否安全可靠。開關(guān)電源是較大的EMC干擾源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)大功率電源模塊哪家便宜,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060363069764/9500531.png"></div><p style="text-indent:25px">一般在不同的使用領(lǐng)域，對大功率電源模塊的工作溫度范圍要求各異：高低溫測試是用來確定產(chǎn)品在低溫、高溫兩個極端氣候環(huán)境條件下的適應(yīng)性和一致性，檢查設(shè)計余量是否足夠。因為元器件的特性在低溫、高溫的條件下會發(fā)生一定的變化，性能參數(shù)具有溫度漂移特性。所以往往很多電源模塊在常溫測試通過，一旦拿到高低溫環(huán)境測試就發(fā)現(xiàn)工作不正?；蛘咝阅軈?shù)明顯下降。同時通過長時間高溫老化可以使元器件的缺陷、焊接和裝配等生產(chǎn)過程中存在的隱患提前暴露出來。對于大功率電源模塊的應(yīng)力設(shè)計，重點關(guān)注場效應(yīng)管(MOS管)、二極管、變壓器、功率電感、電解電容、限流電阻等。保證全電壓范圍內(nèi)在穩(wěn)態(tài)、瞬態(tài)、短路等各種極限條件下都能有足夠的降額，以保障產(chǎn)品的可靠性。大功率電源模塊包括通電測試，以便剔除不合規(guī)格的產(chǎn)品。嘉定區(qū)大功率電源模塊哪家便宜</p><p style="text-indent:25px">大功率電源模塊是置于印刷電路板上某個封裝內(nèi)的**元件。嘉定區(qū)大功率電源模塊哪家便宜</p><p style="text-indent:25px">大功率電源模塊的輸出電壓的調(diào)節(jié)對有TRIM或ADJ(可調(diào)節(jié))輸出引腳的模塊電源產(chǎn)品，可通過電阻或電位器對輸出電壓進(jìn)行一些范圍內(nèi)的調(diào)節(jié)，一般調(diào)節(jié)范圍為±10%。對TRIM輸出引腳，將電位器的焦點與TRIM相連，在整體+S、-S管腳的模塊中，其他兩端分別接+S、-S。沒有+S、-S時，將兩端分別接到相應(yīng)主路的輸出正負(fù)極(+S接+Vin，-S接-Vin)，然后調(diào)節(jié)電位器就可。電位器的阻值一般選用5～10kΩ比較符合。對ADJ輸出引腳，分為輸入邊調(diào)節(jié)與輸出邊調(diào)節(jié)。輸出邊調(diào)節(jié)與TRIM引腳的調(diào)節(jié)方式一樣。電源模塊輸入邊調(diào)節(jié)只能上調(diào)輸出電壓，此時將電位器的其中一端與焦點相接，另一端接輸入端的地。嘉定區(qū)大功率電源模塊哪家便宜</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3086455.html</p></div></div></div></div></div><div id="xrogya7" class="page-right twoColRt"><div id="8zvnugi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gaspbdp" 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" 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