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class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/tianci/637266938162724610/1190052.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kurov7s" 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>正規(guī)通信電源***選擇</p><p><span>***更新：</span>2020-06-09 09:23:07</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="f7zwtf3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市天磁科技有限公司</a></p><p><span>聯(lián)系人：</span>劉先生</p><p><span>郵箱: </span>sales@tiancipower.com</p><p><span>電話: </span>13798502745</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0755-23282813</p><p><span>地址: </span>福海街道新田社區(qū)大洋路90-7號303</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="p8taxoi" class="page-proshow02"><p class="title">詳細說明</p><div id="e2uwtvm" class="box"><p><p style="text-indent:25px">AC/DC變換是將交流變換為直流，其功率流向可以是雙向的，功率流由電源流向負載的稱為“整流”，功率流由負載返回電源的稱為“有源逆變”。AC/DC變換器輸入為50/60Hz的交流電，因必須經(jīng)整流、濾波，因此體積相對較大的濾波電容器是必不可少的，同時因遇到安全標準（如UL、CCEE等）及EMC指令的限制（如IEC、、FCC、CSA），交流輸入側(cè)必須加EMC濾波及使用符合安全標準的元件，這樣就限制AC/DC電源體積的小型化，另外，由于內(nèi)部的高頻、高壓、大電流開關(guān)動作，使得解決EMC電磁兼容問題難度加大，也就對內(nèi)部高密度安裝電路設(shè)計提出了很高的要求，由于同樣的原因，高電壓、大電流開關(guān)使得電源工作損耗增大，限制了AC/DC變換器模塊化的進程，因此必須采用電源系統(tǒng)優(yōu)化設(shè)計方法才能使其工作效率達到一定的滿意程度。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，正規(guī)通信電源***選擇、三相、多相。按電路工作象限又可分為一象限，正規(guī)通信電源***選擇、二象限，正規(guī)通信電源***選擇、三象限、四象限。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="正規(guī)通信電源***選擇" src="https://tyunfile.71360.com/UploadFile/tianci/637266938162724610/1190052.jpg"></div><p style="text-indent:25px">電源就是把其他形式的能量轉(zhuǎn)化成電能的裝置。即：電源是提供電能的裝置。因為它可以將其它形式的能轉(zhuǎn)換成電能，所以我們把這種提供電能的裝置叫做電源。從定義中我們可以看出平時我們理解的“電源”不都屬于電源，比如我們經(jīng)常用到的手機充電器，它是把220V的交流市電轉(zhuǎn)換成5V直流電，可以說只是改變了電能的一種形式，我們可以稱它為電源轉(zhuǎn)換裝置。那電源轉(zhuǎn)換裝置又是如何定義的呢？能夠?qū)㈦娏δ茉吹男问竭M行控制、轉(zhuǎn)換的裝置。因此，我們俗稱的電源其實是電源轉(zhuǎn)換器。電源轉(zhuǎn)換器根據(jù)轉(zhuǎn)換形式可以分成：AC-AC（周波變換器）、AC-DC（整流器）、DC-DC（變換器）、DC-AC（逆變器）4類；根據(jù)轉(zhuǎn)換方式的不同又分為：線性電源和開關(guān)電源；根據(jù)調(diào)控效果分類又分為：穩(wěn)壓、恒流、調(diào)頻、調(diào)相。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="正規(guī)通信電源***選擇" src="https://tyunfile.71360.com/UploadFile/tianci/637266938162470703/6603665.jpg"></div><p style="text-indent:25px">穩(wěn)壓穩(wěn)流：電壓電流值均可從近似零至容額定值連續(xù)可調(diào)，穩(wěn)壓穩(wěn)流自動轉(zhuǎn)換。智能控制：可選配實現(xiàn)本地控制和遠程控制，RS232／RS485串行通信標準配置可與計算機連接，組成遠程控制的智能型電源。模擬控制：隔離型模擬控制，用戶可采用5V或4－20mA信號控制電源的輸出電壓和電流（選配）。聯(lián)動調(diào)節(jié)：新的聯(lián)動調(diào)節(jié)技術(shù)，用一個網(wǎng)線連接各個模塊，同步調(diào)整各個模塊，達到各個模塊平均輸出。超高頻率：頻率高降低了電源輸岀紋波，提高了電源功率密度。超有效率：整機效率可達94％。有效散熱：單機配置由溫度控制轉(zhuǎn)速的風扇。輸出顯示：電壓、電流同時LED數(shù)碼屏顯示（可依據(jù)客戶要求用液晶屏顯示）。短路報警：當輸出短路時，電源聲光報誓（選配）。脈沖工作：可配時間控制器構(gòu)成直流脈沖電源（選配）。浪涌限制：交流輸入采用主動式浪涌電流限制，減少輸入上電時對電網(wǎng)的沖擊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="正規(guī)通信電源***選擇" src="https://tyunfile.71360.com/UploadFile/tianci/637266938162617188/4219759.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/201107.html</p></div></div></div></div></div><div id="8fwtvcz" class="page-right twoColRt"><div id="28v7jac" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="l9shegi" class="recomPic 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