天津小功率DC-DC直流電源價格服務(wù)為先深圳市保益新能電氣供應(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="DC-DC直流電源和交流電源比較大的區(qū)別是什么：交流電是按正弦曲線變化的，由于交流發(fā)電機，在發(fā)電過程中，多對磁極是按一定的角度均勻分布在一個圓周上，使得發(fā)電過程中，各個磁極切割磁力線的時候，具有互補性，所以能夠不斷的產(chǎn)生穩(wěn)定的電流；交流電的"><meta name="keywords" content="天津小功率DC-DC直流電源價格,DC-DC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 http-equiv="Cache-Control" 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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/third-dgdq_kcdgdqcp/">庫存電工電氣產(chǎn)品</a>?天津小功率DC-DC直流電源價格服務(wù)為先深圳市保益新能電氣供應(yīng)</p><div id="cvceqcj" class="leftbox clearfix"><h1>天津小功率DC-DC直流電源價格服務(wù)為先深圳市保益新能電氣供應(yīng)</h1><div id="xqxelxo" class="proBig"><div id="zizqmd2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3vzrdpr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kd7wyfh" 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>天津小功率DC-DC直流電源價格,DC-DC直流電源</p><p><span>***更新：</span>2021-02-06 10:13:04</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3yp23s3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機: </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號德泰工業(yè)區(qū)1號廠房4層402</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="slipmyv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3oa8w8b" class="box"><p><p style="text-indent:25px">DC-DC直流電源和交流電源比較大的區(qū)別是什么：交流電是按正弦曲線變化的，由于交流發(fā)電機，在發(fā)電過程中，多對磁極是按一定的角度均勻分布在一個圓周上，使得發(fā)電過程中，各個磁極切割磁力線的時候，具有互補性，所以能夠不斷的產(chǎn)生穩(wěn)定的電流；交流電的頻率一般是50赫茲。直流電則不是按正弦曲線變化的，電流與時間的函數(shù)圖象是直線，沒有頻率的變化.。直流電的電流的方向、大小都是恒定不變的，交流電的電流方向、大小都隨著時間的改變呈現(xiàn)周期性的變化。DC-DC直流電源，是維持電路中形成穩(wěn)恒電流的裝置。如干電池，天津小功率DC-DC直流電源價格、蓄電池、直流發(fā)電機等。DC-DC直流電源有正、負(fù)兩個電極，正極的電位高，負(fù)極的電位低，天津小功率DC-DC直流電源價格，當(dāng)兩個電極與電路連通后，能夠使電路兩端之間維持恒定的電位差，天津小功率DC-DC直流電源價格，從而在外電路中形成由正極到負(fù)極的電流。DC-DC直流電源是一種能量轉(zhuǎn)換裝置，它把其他形式的能量轉(zhuǎn)換為電能供給電路，以維持電流的穩(wěn)恒流動。DC-DC直流電源能夠使電路兩端之間維持恒定的電位差，從而在外電路中形成由正極到負(fù)極的電流。天津小功率DC-DC直流電源價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津小功率DC-DC直流電源價格,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png"></div><p style="text-indent:25px">高壓分布式DC-DC直流電源：高壓分布式DC-DC直流電源是一種新型的DC-DC直流電源設(shè)備，主要應(yīng)用于小型開關(guān)站和用戶末端，為二次控制線路（如微機保護等智能終端及指示燈、模擬指示器等）提供可靠不間斷工作電源，避免交流失電時導(dǎo)致微機保護失去保護作用，解決因操作過電壓及諧波等因素使UPS失效從而導(dǎo)致微機保護失效問題。時還可為符合裝置功率要求的一次開關(guān)設(shè)備（彈簧機構(gòu)真空斷路器、永磁機構(gòu)真空斷路器、電動負(fù)荷開關(guān)等）提供直流操作電源。壁掛式DC-DC直流電源壁掛DC-DC直流電源適合小型開關(guān)站、小型用戶變電站及小型10KV變電站系統(tǒng)采用一體化設(shè)計思想，由整流模塊、監(jiān)控模塊、降壓單元、配電單元和電池安裝箱構(gòu)成；具有體積小、結(jié)構(gòu)簡單、**構(gòu)成系統(tǒng)等特點；監(jiān)控模塊采用LCD漢字菜單顯示，對系統(tǒng)監(jiān)控和電池自動化管理功能完善，具有與自動化系統(tǒng)連接四遙接口，提供RS232和RS485兩種通訊接口選擇，提供RTU、CDT、MODBUS三種通訊規(guī)約選擇。天津小功率DC-DC直流電源價格DC-DC直流電源輸出電阻及電流調(diào)整率：輸出電阻與放大器的輸出電阻相同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津小功率DC-DC直流電源價格,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338658209856/1967038.png"></div><p style="text-indent:25px">DC-DC直流電源穩(wěn)壓電源直流穩(wěn)壓電源電路：由TOP224P構(gòu)成的 12V、20W開關(guān)直流穩(wěn)壓電源電路如圖所示。電路中使用兩片集成電路：TOP224P 型三端單片開關(guān)電源（IC1），PC817A型線性光耦合器（IC2）。交流電源經(jīng)過UR和Cl整流濾波后產(chǎn)生直流高壓Ui，給高頻變壓器T的一次繞組供電。VDz1和VD1能將漏感產(chǎn)生的尖峰電壓鉗位到安全值，并能衰減振鈴電壓。VDz1采用反向擊穿電壓為200V的P6KE200型瞬態(tài)電壓抑制器，VDl選用1A／600V的UF4005型超快恢復(fù)二極管。二次繞組電壓通過V砬、C2、Ll和C3整流濾波，獲得12V輸出電壓Uo。Uo值是由VDz2穩(wěn)定電壓Uz2、光耦中LED的正向壓降UF、R1上的壓降這三者之和來設(shè)定的。</p><p style="text-indent:25px">DC-DC直流電源系統(tǒng)的保護級差的定義：DC-DC直流電源系統(tǒng)保護電器的級差是指所采用的同一系列保護電器上下級額定電流的等級之差。二、DC-DC直流電源系統(tǒng)的保護級數(shù)的定義。保護級數(shù)是指從DC-DC直流電源蓄電池總出口到負(fù)荷端區(qū)間的保護電器串聯(lián)的數(shù)量（保護電器指直流斷路器、熔斷器）。一個DC-DC直流電源系統(tǒng)所選保護電器的級數(shù)zui多不宜超過4級。三、直流系統(tǒng)熔斷器和直流斷路器級差配合原則。1)上、下級均為熔斷器的，按照2倍及以上額定電流選擇級差配合。2)上、下級均為直流斷路器的，按照4倍及以上額定電流選擇級差配合。3)上級為熔斷器，下級為直流斷路器的，按照2倍及以上額定電流選擇級差配合（由于直流斷路器動作比熔斷器要快，根據(jù)試驗結(jié)果，直流斷路器裝設(shè)在熔斷器的下一級時，熔斷器的額定電流為直流斷路器額定電流的2倍及以上，即可保證動作的選擇性）。4) 變電站內(nèi)設(shè)置直流保護電器的級數(shù)不宜超過4級。DC-DC直流電源各斷路器應(yīng)配備跳閘報警觸點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津小功率DC-DC直流電源價格,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338705856327/8520994.png"></div><p style="text-indent:25px">封裝形式：DC/DC變換器的外形尺寸和輸出形式差異很大。小功率產(chǎn)品采用密封外殼，外形十分纖小;大功率產(chǎn)品常采用quarter-brick或half-brick的形式，電路或暴露，或以外殼包裹。在選擇時，需要注意以下兩個方面：一，引腳是否在同一平面上;第二，是否便于焊接。SMT形式的變換器必須要符合IEC191-6:1990標(biāo)準(zhǔn)的要求，該標(biāo)準(zhǔn)對SMT器件引腳的共面問題做出了嚴(yán)格限定。如果變換器不能滿足這個要求，就需要為其設(shè)計專門的焊接裝配工藝，這會增加裝配時間，提高生產(chǎn)成本。模塊電源的封裝形式多種多樣，符合國際標(biāo)準(zhǔn)的也有，非標(biāo)準(zhǔn)的也有，就同一公司產(chǎn)品而言，相同功率產(chǎn)品有不同封裝，相同封裝有不同功率，那么怎么選擇封裝形式呢?主要有三個方面：①一定功率條件**積要盡量小，這樣才能給系統(tǒng)其他部分更多空間更多功能;②盡量選擇符合國際標(biāo)準(zhǔn)封裝的產(chǎn)品，因為兼容性較好，不局限于一兩個供貨廠家;③?應(yīng)具有可擴展性，便于系統(tǒng)擴容和升級。全部符合國際標(biāo)準(zhǔn)，為業(yè)界普遍采用的半磚、全磚封裝，并且半磚產(chǎn)品功率范圍覆蓋50～200W，全磚產(chǎn)品覆蓋100～300W。DC-DC直流電源一般按照事故照明、輔助設(shè)施、信號回路、保護及控制回路、整流裝置和蓄電池回路。天津小功率DC-DC直流電源價格</p><p style="text-indent:25px">DC-DC直流電源直流回路嚴(yán)禁采用交流空氣斷路器。天津小功率DC-DC直流電源價格</p><p style="text-indent:25px">DC-DC直流電源和交流電源都有不同的應(yīng)用場合，很多情況下對于這兩種電源的選擇往往都是根據(jù)用電器對電源的需求而定。從傳輸?shù)慕嵌葋碇v，目前來看，交流電源比DC-DC直流電源的成本、功耗、傳輸距離等指標(biāo)都好很多。所以涉及到遠(yuǎn)距離輸電的場合，一般都是交流電源，比如我們常用的市電就是220V，50Hz的交流電。之前狹義的交流電源指的是電壓值有正有負(fù)的電源，而電壓值都是正的但是有周期性波動的電源被認(rèn)為是有一定紋波的直流電?，F(xiàn)在我看好像交流電源的內(nèi)涵變得延伸了，這種一直是正的但是紋波比較大的也算是交流電，紋波多大就算是交流電，多大算是直流電，似乎并沒有明確的界限。因為如果真的把直流電用示波器放大去看，可以發(fā)現(xiàn)其實直流電也是有波動的。所以可以比較大膽的認(rèn)為，DC-DC直流電源就是紋波比較小的交流電源。天津小功率DC-DC直流電源價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3193111.html</p></div></div></div></div></div><div id="fo2i2ji" class="page-right twoColRt"><div id="zoqiubi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ga7wgcj" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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