河南直流電源是什么誠信為本深圳市茂迪機(jī)電設(shè)備供應(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="3、會產(chǎn)生反向電流的負(fù)載應(yīng)用當(dāng)連接在可編程直流電源供應(yīng)器輸出端的電機(jī)突然剎車時，會產(chǎn)生很大的反向電流，由于可編程直流電源供應(yīng)器不能吸收從負(fù)載端產(chǎn)生的反向電流，因而輸出電壓會上升。解決方法是在可編程直流電源供應(yīng)器的輸出端與負(fù)載之間串聯(lián)一只二極"><meta name="keywords" content="河南直流電源是什么,直流電源"><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 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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_wydy/">穩(wěn)壓電源</a>?河南直流電源是什么誠信為本深圳市茂迪機(jī)電設(shè)備供應(yīng)</p><div id="cyfphys" class="leftbox clearfix"><h1>河南直流電源是什么誠信為本深圳市茂迪機(jī)電設(shè)備供應(yīng)</h1><div id="vewy3ub" class="proBig"><div id="ra274zq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089690316908/4897128.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="s3rtdzb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089690316908/4897128.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lmyacoa" 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>河南直流電源是什么,直流電源</p><p><span>***更新：</span>2020-12-22 10:16:34</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="yspwtkr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市茂迪機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強(qiáng)</p><p><span>郵箱: </span>fuqiang.huang@maodi.net</p><p><span>電話: </span>13509625980</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.maodi.net</p><p><span>手機(jī): </span>0755-83280136</p><p><span>地址: </span>深南大道6006號華豐大廈2803、2804</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="hl3c9r8" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fjldahe" class="box"><p><p> 3、會產(chǎn)生反向電流的負(fù)載應(yīng)用當(dāng)連接在可編程直流電源供應(yīng)器輸出端的電機(jī)突然剎車時，會產(chǎn)生很大的反向電流，由于可編程直流電源供應(yīng)器不能吸收從負(fù)載端產(chǎn)生的反向電流，因而輸出電壓會上升。解決方法是在可編程直流電源供應(yīng)器的輸出端與負(fù)載之間串聯(lián)一只二極管，并在負(fù)載端并接一瀉放電阻來吸收反向電流。當(dāng)反向電流為一尖峰突波時，請?jiān)谪?fù)載兩端并接一個大容量電解電容。 </p> <p> 4、電容性負(fù)載應(yīng)用因?yàn)殡娙菪载?fù)載往往會導(dǎo)致輸出電壓升高，尤其在輸出電壓由高向低調(diào)節(jié)時會導(dǎo)致輸出電壓下降緩慢，因此，使用時在可編程直流電源供應(yīng)器的輸出端并聯(lián)一只功率電阻，并在輸出與負(fù)載之間串聯(lián)一只二極管，可獲得較好的使用效果。 </p> <p> 5、脈沖類負(fù)載應(yīng)用脈沖類負(fù)載的電流峰值即使在可編程直流電源供應(yīng)器輸出額定電流值范圍內(nèi)，或者脈沖類電路或電動機(jī)驅(qū)動電路負(fù)載電流波形，在計(jì)量設(shè)備所指示的標(biāo)稱值(平均值)內(nèi)，河南直流電源是什么。電流也會達(dá)到可編程直流電源供應(yīng)器額定電流區(qū)域，河南直流電源是什么，河南直流電源是什么，從而使輸出電壓下降或者顯得不穩(wěn)定。解決方法是在電源供應(yīng)器與負(fù)載之間串接電感器，或者選擇輸出電流更大的可編程直流電源供應(yīng)器。雙通道可編程直流電源。河南直流電源是什么</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南直流電源是什么,直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089690316908/4897128.png"></div><p style="text-indent:25px">3）通信電源通信電源其實(shí)質(zhì)上就是DC/DC變換器式電源，只是它一般以直流－48V或－24V供電，并用后備電池作DC供電的備份，將DC的供電電壓變換成電路的工作電壓，一般它又分**供電、分層供電和單板供電三種，以后者可靠性比較高。（4）電臺電源電臺電源輸入AC220V/110V，輸出DC13.8V,功率由所供電臺功率而定，幾安幾百安均有產(chǎn)品。為防止AC電網(wǎng)斷電影響電臺工作，而需要有電池組作為備份，所以此類電源除輸出一個13.8V直流電壓外,還具有對電池充電自動轉(zhuǎn)換功能。（5）模塊電源隨著科學(xué)技術(shù)飛速發(fā)展，對電源可靠性、容量/體積比要求越來越高，模塊電源越來越顯示其優(yōu)越性，它工作頻率高、體積小、可靠性高，便于安裝和組合擴(kuò)容，所以越來越被***采用。國內(nèi)雖有相應(yīng)模塊生產(chǎn)，但因生產(chǎn)工藝未能趕上國際水平，故障率較高。DC/DC模塊電源雖然成本較高，但從產(chǎn)品的漫長的應(yīng)用周期的整體成本來看，特別是因系統(tǒng)故障而導(dǎo)致的高昂的維修成本及商譽(yù)損失來看，選用該電源模塊還是合算合算的，在此還值得一提的是羅氏變換器電路，它的突出優(yōu)點(diǎn)是電路結(jié)構(gòu)簡單，效率高和輸出電壓、電流的紋波值接近于零。河南直流電源是什么高頻開關(guān)直流電源價格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南直流電源是什么,直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089710961437/7545899.png"></div><p> 簡單的極性保護(hù) </p> <p> 3 程序保護(hù) </p> <p> 直流電源模塊穩(wěn)壓電源的電路比較復(fù)雜，基本上可以分為小功率控制部分和大功率開關(guān)部分。開關(guān)管則屬大功率器件，為保護(hù)開關(guān)管在開啟或關(guān)斷電源時的安全，必須先讓調(diào)制器、放大器等小功率控制電路工作。所以，必須保證正確的開機(jī)程序。開關(guān)穩(wěn)壓器的輸入端，一般接有小電感、大電容的輸入濾波器，在開機(jī)瞬間，濾波電容器會流過很大的浪涌電流，這個浪涌電流可高出正常輸入電流的數(shù)倍，這樣大的浪涌電流會使普通電源開關(guān)的觸點(diǎn)或繼電器的觸點(diǎn)熔化，并使輸入保險絲熔斷，甚至?xí)p害電容器。為此，開機(jī)時應(yīng)該接入一個限流電阻，通過這個限流電阻對電容器充電。為了不使該限流電阻消耗過多的功率，在開機(jī)暫態(tài)過程結(jié)束后，用一個繼電器自動短接，使直流電源直接對開關(guān)穩(wěn)壓器供電，如圖2所示。這種電路稱之謂開關(guān)穩(wěn)壓器的“軟啟動”電路。 </p><p style="text-indent:25px">直流電源的類型很多，不同類型的直流電源中，非靜電力的性質(zhì)不同，能量轉(zhuǎn)換的過程也不同。在化學(xué)電池（例如干電池、蓄電池等）中，非靜電力是與離子的溶解和沉積過程相聯(lián)系的化學(xué)作用，化學(xué)電池放電時，化學(xué)能轉(zhuǎn)化為電能和焦耳熱在溫差電源（例如金屬溫差電偶、半導(dǎo)體溫差電偶）中，非靜電力是與溫度差和電子的濃度差相聯(lián)系的擴(kuò)散作用，溫差電源向外電路提供功率時，熱能部分地轉(zhuǎn)化為電能。在直流發(fā)電機(jī)中，非靜電力是電磁感應(yīng)作用，直流發(fā)電機(jī)供電時，機(jī)械能轉(zhuǎn)化為電能與焦耳熱。在光電池中，非靜電力是光生伏打效應(yīng)的作用，光電池供電時，光能轉(zhuǎn)化為電能和焦耳熱。高頻開關(guān)直流電源品牌。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南直流電源是什么,直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089516273958/9059328.png"></div><p> 可編程直流電源，在航天航空領(lǐng)域主要用于DC-DC電源模塊、蓄電池、飛行模擬器等直流用電設(shè)備的測試。可靠性測試用電設(shè)備的可靠性測試通常包括電壓跌落測試、溫升測試、ON/OFF測試、老化測試等。而對于航天航空用電設(shè)備來說，要進(jìn)行比常規(guī)更為嚴(yán)苛的測試，要求用電設(shè)備不僅能在正常供電情況下穩(wěn)定工作，還要能應(yīng)付供電異常的狀況。 </p> <p> <br /> </p> <p> 例如：在飛機(jī)上，供電系統(tǒng)給各種各樣的直流用電設(shè)備供電，而飛機(jī)上的供電系統(tǒng)有時會存在過壓或欠壓的狀況，保證用電設(shè)備在這些異常情況下正常工作，就是對飛機(jī)功能性以及安全性的保證。因此，過欠壓測試必不可少。直流電源在該測試中用以模擬供電系統(tǒng)，通過輸出一個連續(xù)的電壓變化波形來模擬飛機(jī)供電系統(tǒng)的電壓變化，對用電設(shè)備進(jìn)行供電，測試用電設(shè)備是否會在過壓、欠壓、正常電壓這三種不同的電壓狀態(tài)下都能保持正常工作。圖1是在對飛機(jī)上的用電設(shè)備做過欠壓測試時利用直流電源模擬飛機(jī)供電系統(tǒng)輸出的電壓波形：高頻開關(guān)直流電源廠家。江西脈沖電源直流電源</p><p style="text-indent:25px">可調(diào)直流電源哪家好。河南直流電源是什么</p><p style="text-indent:25px">儀器儀表是用以檢出、測量、觀察、計(jì)算各種物理量、物質(zhì)成分、物性參數(shù)等的器具或設(shè)備。真空檢漏儀、壓力表、測長儀、顯微鏡、乘法器等均屬于儀器儀表。近年來，得益于機(jī)械、冶金、石化行業(yè)等儀器儀表服務(wù)領(lǐng)域經(jīng)營狀況的好轉(zhuǎn)，我國儀器儀表制造業(yè)發(fā)展一路向好。儀器儀表在工業(yè)生產(chǎn)過程中扮演著重要的角色，用到各種各樣的儀器儀表，如電能質(zhì)量分析儀，功率分析儀，亮度計(jì)，色差儀等為工業(yè)的檢驗(yàn)、測量和計(jì)量提供技術(shù)支撐。儀器儀表應(yīng)用領(lǐng)域?qū)挿?，覆蓋了一般經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的購銷、技術(shù)維護(hù)、信息咨詢；國內(nèi)貿(mào)易；貨物與技術(shù)的進(jìn)出口業(yè)務(wù)。（法律、行政法規(guī)、國**決定禁止的項(xiàng)目除外，限制的項(xiàng)目須取得許可后方可經(jīng)營），許可經(jīng)營項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的安裝、維修。等各方面，在國民經(jīng)濟(jì)建設(shè)各行各業(yè)的運(yùn)行過程中承擔(dān)著把關(guān)者和指導(dǎo)者的任務(wù)，儀器儀表制造行業(yè)可以分為通用儀表儀器制造、**儀器儀表制造、鐘表與計(jì)時儀器制造、光學(xué)儀器制造和衡器制造。“互聯(lián)網(wǎng)＋”、大數(shù)據(jù)、020、萬物互聯(lián)網(wǎng)、P2P、分享經(jīng)濟(jì)等熱門詞匯的出現(xiàn)，各個行業(yè)制定相應(yīng)的措施來順應(yīng)時代的經(jīng)濟(jì)發(fā)展，以爭取更大的發(fā)展市場。而互聯(lián)網(wǎng)的出現(xiàn)也為儀器儀表行業(yè)參與國際競爭提供了機(jī)會，有利于貿(mào)易企業(yè)實(shí)現(xiàn)技術(shù)創(chuàng)新升級。河南直流電源是什么</p><p> 深圳市茂迪機(jī)電設(shè)備有限公司成立于1995年4月，是廣東省儀器儀表協(xié)會理事單位、深圳市儀器儀表行業(yè)協(xié)會理事單位，深圳市**采購中心定點(diǎn)采購單位。主要由光電事業(yè)部、物體色差部、系統(tǒng)集成部，環(huán)境測試儀器部組成。 </p> <p> 經(jīng)過多年的努力，根據(jù)中國儀器儀表市場的需求及國內(nèi)外儀器儀表行業(yè)的發(fā)展趨勢，我公司從眾多的同類產(chǎn)品中精挑細(xì)選出一些技術(shù)先進(jìn)，質(zhì)量可靠，性價比高的品牌測量儀器推薦給用戶，與日本柯尼卡美能達(dá) Konica Minolta、美國Radiant、雷云光電Rayclouds、德國Instyument Systems、日本托普康Topcon、法國ELDIM、美國藍(lán)菲Labsphere、中國臺灣茂迪、德國GMC-I高美測儀、德國GMC-I KURTH（庫爾特），TESCOM，有著緊密而***的合作聯(lián)系。 </p> <p> </p> <span style="display:none;"></span></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2514095.html</p></div></div></div></div></div><div id="a3qifc8" class="page-right twoColRt"><div id="gkhzr8l" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xcum22f" 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)" 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