楊浦區(qū)DCDC電源模塊價位多少來電咨詢上海多商電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="變頻器電源主要用于交流電機(jī)的變頻調(diào)速,其在電氣傳動系統(tǒng)中占據(jù)的地位日趨重要,已獲得巨大的節(jié)能效果。變頻器電源主電路均采用交流-直流-交流方案。工頻電源通過整流器變成固定的直流電壓，楊浦區(qū)DCDC電源模塊價位多少,然后由大功率晶體管或IGBT"><meta name="keywords" content="楊浦區(qū)DCDC電源模塊價位多少,DCDC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" 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src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057031542665/4786685.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="reflwmu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057031542665/4786685.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cfgr83k" 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>楊浦區(qū)DCDC電源模塊價位多少,DCDC電源模塊</p><p><span>***更新：</span>2021-02-01 10:18:42</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="wozfdtr" 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="m8otzka" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8si3fgm" class="box"><p><p style="text-indent:25px">變頻器電源主要用于交流電機(jī)的變頻調(diào)速,其在電氣傳動系統(tǒng)中占據(jù)的地位日趨重要,已獲得巨大的節(jié)能效果。變頻器電源主電路均采用交流-直流-交流方案。工頻電源通過整流器變成固定的直流電壓，楊浦區(qū)DCDC電源模塊價位多少,然后由大功率晶體管或IGBT組成的PWM高頻變換器, 將直流電壓逆變成電壓，楊浦區(qū)DCDC電源模塊價位多少、頻率可變的交流輸出,電源輸出波形近似于正弦波,用于驅(qū)動交流異步電動機(jī)實(shí)現(xiàn)無級調(diào)速。高頻逆變式整流焊機(jī)電源是一種高性能、高效、省材的新型焊機(jī)電源,替代了當(dāng)今焊機(jī)電源的發(fā)展方向。由于IGBT大容量模塊的商用化，楊浦區(qū)DCDC電源模塊價位多少,這種電源更有著廣闊的應(yīng)用前景。逆變焊機(jī)電源大都采用交流-直流-交流-直流(AC-DC-AC-DC)變換的方法。50Hz交流電經(jīng)全橋整流變成直流,IGBT組成的PWM高頻變換部分將直流電逆變成20kHz的高頻矩形波,經(jīng)高頻變壓器耦合, 整流濾波后成為穩(wěn)定的直流,供電弧使用。模塊電源具有隔離作用。楊浦區(qū)DCDC電源模塊價位多少</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)DCDC電源模塊價位多少,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057031542665/4786685.png"></div><p style="text-indent:25px">電源模塊在在電壓轉(zhuǎn)換時，不僅有能量上的損耗，還會有熱能，這些都會致使電源模塊出現(xiàn)發(fā)熱的情況。直接降低了電源的轉(zhuǎn)換率，而轉(zhuǎn)換率影響到電源模塊的正常運(yùn)行，甚至也會影響到周圍器件的性能。所以，當(dāng)電源模塊出現(xiàn)發(fā)熱，便需要及時處理。使用的是線性電源，線性電源的工作原理，通過調(diào)節(jié)調(diào)整管RW改變輸出電壓的大小。因?yàn)樗稣{(diào)節(jié)器是等效于電阻器，所述電阻器產(chǎn)生時電流通過，從而導(dǎo)致低效率的熱交換。為了可以防止電源管理模塊發(fā)熱問題嚴(yán)重，可采取具有以下主要措施：加大散熱片、實(shí)行風(fēng)冷、導(dǎo)熱材料需要解決（導(dǎo)熱硅脂、導(dǎo)熱灌封膠）、改用開關(guān)電源。楊浦區(qū)DCDC電源模塊價位多少模塊電源宜安裝在空氣對流較好的位置。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)DCDC電源模塊價位多少,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057014931033/5133087.png"></div><p style="text-indent:25px">AC/DC變換按電路的接線方式可分為，半波電路、全波電路。按電源相數(shù)可分為，單相、三相、多相。按電路工作象限又可分為一象限、二象限、三象限、四象限。開關(guān)電源的選用開關(guān)電源在輸入抗干擾性能上，由于其自身電路結(jié)構(gòu)的特點(diǎn)(多級串聯(lián))，一般的輸入干擾如浪涌電壓很難通過，在輸出電壓穩(wěn)定度這一技術(shù)指標(biāo)上與線性電源相比具有較大的優(yōu)勢，其輸出電壓穩(wěn)定度可達(dá)(0.5~1)%。開關(guān)電源模塊作為一種電力電子集成器件，在選用中應(yīng)注意以下幾點(diǎn):因開關(guān)電源工作效率高，一般可達(dá)到80%以上，故在其輸出電流的選擇上，應(yīng)準(zhǔn)確測量或計(jì)算用電設(shè)備的較大吸收電流，以使被選用的開關(guān)電源具有高的性能價格比。</p><p style="text-indent:25px">DC-DC模塊電源紋波指標(biāo)是一項(xiàng)很重要的參數(shù)。干凈的電源是數(shù)字電路穩(wěn)定工作的前提，也是模擬器件的各項(xiàng)參數(shù)的重要保障。為了確定我們的電源干凈，必須對偉仕DC-DC模塊的輸出紋波進(jìn)行測量。但很多人測量得到的紋波值動輒上百mV，甚至幾百mV，遠(yuǎn)遠(yuǎn)比器件手冊提供的較大紋波值大，這主要是測量方法的不正確造成的。正確的測量方法：限制示波器帶寬為20MHz(大多中低端示波器檔位限制在20MHz，較好產(chǎn)品還有200MHz帶寬限制的選擇)，目的是避免數(shù)字電路的高頻噪聲影響紋波測量，盡量保證測量的準(zhǔn)確性;設(shè)置耦合方式為交流耦合，方便測量(以更小檔位來仔細(xì)觀測紋波，不關(guān)心直流電平)。模塊電源具有比分立元件電源靈活、高效、可靠等明顯優(yōu)勢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="楊浦區(qū)DCDC電源模塊價位多少,DCDC電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393057105860144/4651539.png"></div><p style="text-indent:25px">發(fā)射機(jī)高壓電源通常不采用市售高壓模塊電源，而專門設(shè)計(jì)高壓電路。若使用高壓模塊電源，在使用過程及停電后10 min之內(nèi)，均不可觸及高壓危險(xiǎn)區(qū)。模塊電源選型原則：一般功率較大的宜選擇開關(guān)電源，功率較小的選擇線性電源。模塊電源一般極少損壞，當(dāng)高壓電源工作異常時如加不上電，關(guān)閉供電，檢查安裝在高壓電源內(nèi)的模塊電源輸出輸入端是否斷路或短路，如有這些現(xiàn)象即說明模塊電源損壞，更換模塊電源即可。模塊電源通常由廠家一次性封裝。不可強(qiáng)行拆卸。開關(guān)電源的基本構(gòu)成，其中DC-DC變換器用于進(jìn)行功率轉(zhuǎn)換，他是開關(guān)電源的重要部分，此外還有啟動、過流和過壓保護(hù)、噪聲濾波等電路。輸出采樣電路(R1、R2)檢測輸出電壓的變化，并與基準(zhǔn)電壓Ur比較，誤差電壓經(jīng)過放大及脈寬調(diào)制電路(PWM),在經(jīng)過驅(qū)動電路控制功率器件的占空比，從而達(dá)到調(diào)整輸出電壓大小的目的。高頻小型化的開關(guān)電源及其技術(shù)已成為現(xiàn)代通信供電系統(tǒng)的主流。金山區(qū)DCDC電源模塊哪家優(yōu)惠</p><p style="text-indent:25px">模塊電源的開關(guān)操作，是通過REM端進(jìn)行的。楊浦區(qū)DCDC電源模塊價位多少</p><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(bǔ)償?shù)鹊炔糠志墒褂媚K電源。電真空器件雷達(dá)發(fā)射機(jī)的高壓電源需要專門設(shè)計(jì)，對其高壓電源的穩(wěn)定性有較高要求。在設(shè)計(jì)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(dá)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(jī)使用參數(shù)要求專門設(shè)計(jì)。楊浦區(qū)DCDC電源模塊價位多少</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3111252.html</p></div></div></div></div></div><div id="fypvbr3" class="page-right twoColRt"><div id="ur3jufg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rzpkllg" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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