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href="http://www.cdcfah.com/cp/third-dianyuan_kgdy/">開關電源</a>?天津DCDC電源模塊定制和諧共贏上海多商電子供應</p><div id="blx9lse" class="leftbox clearfix"><h1>天津DCDC電源模塊定制和諧共贏上海多商電子供應</h1><div id="ztfjfry" class="proBig"><div id="hvh4m8x" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393056914295106/3543053.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hrtizq8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393056914295106/3543053.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="h2g4wqh" 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)品關鍵詞：</span>天津DCDC電源模塊定制,DCDC電源模塊</p><p><span>***更新：</span>2021-01-04 06:16:44</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="zdk4p22" 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: </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="ckmqm8u" class="page-proshow02"><p class="title">詳細說明</p><div id="wgsmiu3" class="box"><p><p style="text-indent:25px">傳統(tǒng)的交流-直流(AC-DC)變換器在投運時,將向電網(wǎng)注入大量的諧波電流，天津DCDC電源模塊定制,引起諧波損耗和干擾,同時還出現(xiàn)裝置網(wǎng)側功率因數(shù)惡化的現(xiàn)象,即所謂"電力公害",例如,不可控整流加電容濾波時,網(wǎng)側三次諧波含量可達(70~80)%,網(wǎng)側功率因數(shù)*有0.5~0.6。電力有源濾波器是一種能夠動態(tài)控制諧波的新型電力電子裝置,能克服傳統(tǒng)LC濾波器的不足,是一種很有發(fā)展前途的諧波控制手段。濾波器由橋式開關功率變換器和具體控制電路構成，天津DCDC電源模塊定制。與傳統(tǒng)開關電源的區(qū)別是:不*反饋輸出電壓，天津DCDC電源模塊定制,還反饋輸入平均電流;電流環(huán)基準信號為電壓環(huán)誤差信號與全波整流電壓取樣信號之乘積。質優(yōu)可靠模塊電源一般均采用全自動化生產(chǎn)。天津DCDC電源模塊定制</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津DCDC電源模塊定制,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393056914295106/3543053.png"></div><p style="text-indent:25px">DC/DC變換器將一個固定的直流電壓變換為可變的直流電壓,這種技術被普遍應用于無軌電車、地鐵列車、電動車的無級變速和控制,同時使上述控制獲得加速平穩(wěn)、快速響應的性能,并同時收到節(jié)約電能的效果。用直流斬波器代替變阻器可節(jié)約電能(20~30)%。直流斬波器不*能起調壓的作用(開關電源), 同時還能起到有效地控制電網(wǎng)側諧波電流噪聲的作用。通信電源的二次電源DC/DC變換器已商品化,模塊采用高頻PWM技術,開關頻率在500kHz左右,功率密度為5W~20W/in3。隨著大規(guī)模集成電路的發(fā)展,要求電源模塊實現(xiàn)小型化,因此就要不斷提高開關頻率和采用新的電路拓撲結構,當前已有一些公司研制生產(chǎn)了采用零電流開關和零電壓開關技術的二次電源模塊,功率密度有較大幅度的提高。天津DCDC電源模塊定制模塊電源一般配備標準化前端、高集成電源模塊和其他元件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津DCDC電源模塊定制,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057014931033/5133087.png"></div><p style="text-indent:25px">高壓電路的主電路是控制電路和高壓生成電路。其中交流供電輸入和所需低壓直流控制電源。以及濾波或功率因數(shù)補償?shù)鹊炔糠志墒褂媚K電源。電真空器件雷達發(fā)射機的高壓電源需要專門設計，對其高壓電源的穩(wěn)定性有較高要求。在設計高壓電源時通常需要從普通供電系統(tǒng)經(jīng)過兩級或多級穩(wěn)壓以達到輸出要求。而且還需要考慮電源隔離、體積、散熱、可靠性等問題。高壓電源使用模塊電源的范圍是：濾波功率變換電路，控制部分(低壓)，高壓部分一般不使用市售高壓模塊電源，而要根據(jù)發(fā)射機使用參數(shù)要求專門設計。</p><p style="text-indent:25px">電源模塊是可以直接貼裝在印刷電路板上的電源供應器，其特點是可為**集成電路(ASIC)、數(shù)字信號處理器 (DSP)、微處理器、存儲器、現(xiàn)場可編程門陣列 (FPGA) 及其他數(shù)字或模擬負載提供供電。一般來說，這類模塊稱為負載點 (POL) 電源供應系統(tǒng)或使用點電源供應系統(tǒng) (PUPS)。由于模塊式結構的優(yōu)點甚多，因此模塊電源普遍用于交換設備、接入設備、移動通訊、微波通訊以及光傳輸、路由器等通信領域和汽車電子、航空航天等。近幾年由于數(shù)據(jù)業(yè)務的飛速發(fā)展和分布式供電系統(tǒng)的不斷推廣,模塊電源的增幅已經(jīng)超出了一次電源。模塊電源具有隔離作用，抗干擾能力強，自帶保護功能，便于集成。隨著半導體工藝、封裝技術和高頻軟開關的大量使用,模塊電源功率密度越來越大,轉換效率越來越高,應用也越來越簡單。人們在開關電源技術領域是邊開發(fā)相關的電力電子器件，邊開發(fā)開關變頻技術，兩者相互促進推動著開關電源每年以超過兩位數(shù)字的增長率向著輕、小、薄、低噪聲、高可靠、抗干擾的方向發(fā)展。隔離就是將輸出與輸入進行電路上的分離。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津DCDC電源模塊定制,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393056942176472/3982407.png"></div><p style="text-indent:25px">多路輸出功率分配，選擇多路輸出模塊電源時要注意不同路輸出之間的功率分配。以雙路產(chǎn)品為例，一般有兩種類型：一種是雙路平衡負載的，即雙路電流大小一樣；另一種是不平衡負載的，即主、輔路負載電流不相同，主路大，輔路小。對于這種產(chǎn)品，建議選擇輔路與主路功率之比為1/5～1/2為宜，在此范圍內輔路的電壓穩(wěn)定性才有保證（可在5%以內），否則輔路電壓就會偏高或偏低。另一方面如果雙路負載本來就不相同也盡量不要選用平衡負載型模塊電源，因為此種電源專門針對對稱負載設計，若負載不平衡輔路電壓精度不高。模組電源被替換為一個模塊接口板。靜安區(qū)DCDC電源模塊售價</p><p style="text-indent:25px">選擇多路輸出模塊電源時要注意不同路輸出之間的功率分配。天津DCDC電源模塊定制</p><p style="text-indent:25px">模塊電源的開關操作，是通過REM端進行的。一般控制方式有兩種。 REM與-UIN(參考地)相連，關斷，要求UREF<0．4 V。REM懸空或與+UIN相連，模塊工作，要求UREM>1 V。 REM與UIN相連，關斷，要求UREM<0．4 V。REM與+UIN相連，模塊工作，要求UREM>l V。REM懸空，關斷，即所謂“懸空關斷”(-R)。如果控制要與輸入端隔離．則可以使用光電耦合器作為傳遞控制信號。模塊電源的組合：并聯(lián)擴容將相同模塊輸出端并聯(lián)，可使輸出能力增強。但并聯(lián)模塊的輸出電壓要調整得比較一致，以保證相對均流，同時避免不必要的振蕩。對有較大電流輸出的模塊．還可以仔細設計引線電阻，以達到均流效果。用這種方法并聯(lián)的模塊，不宜超過2個。同時，如果其中一塊模塊輸出有故障，整個系統(tǒng)都將不能正常工作。天津DCDC電源模塊定制</p><p style="text-indent:25px">上海多商電子有限公司致力于電工電氣，是一家生產(chǎn)型公司。上海多商電子致力于為客戶提供良好的充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊，一切以用戶需求為中心，深受廣大客戶的歡迎。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造電工電氣良好品牌。上海多商電子秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2697134.html</p></div></div></div></div></div><div id="rwdkwif" class="page-right twoColRt"><div id="bqszgs7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wvcjawn" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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