湖北大功率電源模塊批發(fā)價格誠信為本上海多商電子供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="大功率電源模塊紋波是指疊加在輸出直流電上的交流成分，紋波幅值是交流成分的波峰與波谷之間的峰峰值，狹義的紋波是指在輸出直流電中含有工頻交流成分。工頻，是指電力系統(tǒng)的發(fā)電、輸電、變電與配電設備以及工業(yè)與民用電氣設備采用的額定頻率，單位赫茲HZ。"><meta name="keywords" content="湖北大功率電源模塊批發(fā)價格,大功率電源模塊"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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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>?湖北大功率電源模塊批發(fā)價格誠信為本上海多商電子供應</p><div id="kawcmim" class="leftbox clearfix"><h1>湖北大功率電源模塊批發(fā)價格誠信為本上海多商電子供應</h1><div id="aoseyia" class="proBig"><div id="ikuaiio" 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="4kwi8ug" 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="cg2ymy4" 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>湖北大功率電源模塊批發(fā)價格,大功率電源模塊</p><p><span>***更新：</span>2021-02-06 12:20:16</p><p><span id="click" >瀏覽次數(shù)：9次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="s22weka" 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="aocagc2" class="page-proshow02"><p class="title">詳細說明</p><div id="qemk4k2" class="box"><p><p style="text-indent:25px">大功率電源模塊紋波是指疊加在輸出直流電上的交流成分，紋波幅值是交流成分的波峰與波谷之間的峰峰值，狹義的紋波是指在輸出直流電中含有工頻交流成分。工頻，是指電力系統(tǒng)的發(fā)電、輸電、變電與配電設備以及工業(yè)與民用電氣設備采用的額定頻率，單位赫茲HZ。中國采用 50Hz，有些國家采用60Hz。紋波是由電容充放電、PWM調節(jié)等所產(chǎn)生，指在輸出時，由電源本身開關引起的一種固定頻率波動。當開關電源在工作狀態(tài)時，湖北大功率電源模塊批發(fā)價格，湖北大功率電源模塊批發(fā)價格，每一個開關過程電能從輸入端被泵到輸出端，湖北大功率電源模塊批發(fā)價格，在輸出電容上會形成一個充放電的過程。這導致了輸出電壓的波動，波動頻率和開關管開關頻率相同，輸出紋波指的就是這個波動。AC/DC變換器輸入為50/60Hz的交流電，因必須經(jīng)整流、濾波。湖北大功率電源模塊批發(fā)價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北大功率電源模塊批發(fā)價格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060755164706/6585667.png"></div><p style="text-indent:25px">變壓器損耗也是模塊開關電源損耗的重要部分，變壓器損耗主要有鐵損和銅損。鐵損是指由由變壓器的材料、形狀、工藝結構等有關因素而引起的高頻損耗，銅損是指由變壓器繞組線路而引起的傳導損耗，為了減小變壓器的鐵損，應選擇高頻特性好、高頻損耗小、磁芯結構形狀合理、結構緊湊的磁芯材料。同時為了減小模塊開關電源的體積，應盡力提高模塊開關電源的開關工作頻率，如要提高到500kHz左右或更高，普通磁芯材料的損耗很大，磁芯很容易過熱而磁飽和，以至無法正常工作，所以在模塊開關電源中必須選用磁特性優(yōu)良的高頻磁芯材料。崇明區(qū)大功率電源模塊批發(fā)廠家模塊電源可用于交換設備、光傳輸、路由器等通信領域和汽車電子、航空航天等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北大功率電源模塊批發(fā)價格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060592945780/7659586.png"></div><p style="text-indent:25px"> 磁性元器件的尺寸大小和開關工作頻率有密切關系，在磁性元器件允許的工作頻率范圍內，磁性元器件的尺寸和開關工作頻率成反比，要想減小模塊開關電源高頻開關變壓器和電感等磁性元器件的體積，需提高開關工作頻率。同時，模塊開關電源中高頻開關變壓器繞組的設計也很重要，高頻開關變壓器的繞組不只對銅損有影響，而且關系到高頻開關變壓器繞組間的耦合，對高頻開關變壓器的鐵損也有影響，高頻開關變壓器的設計和制作對模塊開關電源的工作性能有很大的影響。</p><p style="text-indent:25px">大功率電源模塊有以下多個優(yōu)點：每一模塊可以分別加以嚴格測試，以確保其高度可靠，其中包括通電測試，以便剔除不合規(guī)格的產(chǎn)品。相較之下，集成式的解決方案便較難測試，因為整個供電系統(tǒng)與電路上的其他功能系統(tǒng)緊密聯(lián)系一起。不同的供應商可以按照現(xiàn)有的技術標準設計同一大小的模塊，為設計電源供應器的工程師提供多種不同的選擇。每一模塊的設計及測試都按照標準性能的規(guī)定進行，有助減少采用新技術所承受的風險。若采用集成式的解決方案，一旦電源供應系統(tǒng)出現(xiàn)問題，便需要將整塊主機板更換;若采用模塊式的設計，只要將問題模塊更換便可，這樣有助節(jié)省成本及開發(fā)時間。大功率電源模塊主要作用是電壓轉換，可以將交流或直流電變換成你想要的交流或直流電。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北大功率電源模塊批發(fā)價格,大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060385120850/9021330.png"></div><p style="text-indent:25px">分布式電源供電系統(tǒng)采用小功率模塊和大規(guī)?？刂萍呻娐纷骰静考?利用較新理論和技術成果,組成積木式、智能化的大功率供電電源,從而使強電與弱電緊密結合,降低大功率元器件、大功率裝置(集中式)的研制壓力,提高生產(chǎn)效率。八十年代初期,對分布式高頻開關電源系統(tǒng)的研究基本集中在變換器并聯(lián)技術的研究上。八十年代中后期,隨著高頻功率變換技術的迅述發(fā)展，各種變換器拓撲結構相繼出現(xiàn),結合大規(guī)模集成電路和功率元器件技術,使中小功率裝置的集成成為可能,從而迅速地推動了分布式高頻開關電源系統(tǒng)研究的展開。自八十年代后期開始,這一方向已成為國際電力電子學界的研究熱點,論文數(shù)量逐年增加，應用領域不斷擴大。散熱器翅片長度會造成散熱性能的差異問題。湖北大功率電源模塊批發(fā)價格</p><p style="text-indent:25px">大功率電源模塊封裝尺寸有插針，貼片的，和螺旋。湖北大功率電源模塊批發(fā)價格</p><p style="text-indent:25px">散熱器翅片厚度的選擇也同樣會影響大功率電源模塊的散熱性能。在正常運行的情況下，由于導熱主要是沿著電源模塊的散熱器翅片縱向方向傳遞，因而翅片的厚度對于散熱器熱性能沒有太大的影響，翅片厚度的增加并沒有使熱源結溫降低很多，反而增加了散熱器的重量。為了保證散熱器翅片的硬度且易于加工，翅片硬度不能太薄，工程上一般會將散熱器翅片的厚度規(guī)定在≥1mm左右。散熱器翅片個數(shù)也同樣會影響到模塊電源的散熱性能。在模塊正常工作的前提下，隨著翅片數(shù)目的增多，熱源結溫會有所降低。但是超過某一數(shù)值之后，隨著翅片的增多，器件結溫不但沒有明顯變化反而散熱器的重量會明顯增加。同時，翅片數(shù)目增加有時還要考慮器件安裝的問題，有的器件安裝在散熱器兩翅片之間，如果翅片數(shù)太多，器件是不容易安裝在散熱器上的，因而工程師千萬不能盲目增加翅片的數(shù)目。湖北大功率電源模塊批發(fā)價格</p></p><br /><p>文章來源地址: 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