現在很多設備(bei)的(de)(de)(de)電(dian)(dian)(dian)路(lu)(lu)設計(ji)越(yue)來(lai)越(yue)簡單，主要(yao)功能(neng)就(jiu)是輸(shu)(shu)(shu)入輸(shu)(shu)(shu)出電(dian)(dian)(dian)壓(ya)轉換(huan)，而電(dian)(dian)(dian)路(lu)(lu)轉換(huan)設計(ji)就(jiu)需要(yao)借dcdc電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)的(de)(de)(de)輔助(zhu)，dcdc電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)應用普遍，如通(tong)訊(xun)系列的(de)(de)(de)路(lu)(lu)由(you)器(qi)、交(jiao)換(huan)機、儀器(qi)儀表等，但(dan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)型號多樣，質量也參差(cha)不齊，如何選擇一(yi)款隔離(li)非穩壓(ya)單路(lu)(lu)輸(shu)(shu)(shu)出、微功率(lv)的(de)(de)(de)dcdc電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)呢？對于(yu)隔離(li)dcdc電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)在路(lu)(lu)由(you)器(qi)上的(de)(de)(de)應用，其(qi)(qi)輸(shu)(shu)(shu)出電(dian)(dian)(dian)壓(ya)雖(sui)只有5v，但(dan)能(neng)穩定設備(bei)的(de)(de)(de)電(dian)(dian)(dian)壓(ya)輸(shu)(shu)(shu)出，同時(shi)也簡化(hua)了電(dian)(dian)(dian)路(lu)(lu)設計(ji)。dcdc電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)其(qi)(qi)中一(yi)個型號，效率(lv)高達88%，1W定電(dian)(dian)(dian)壓(ya)輸(shu)(shu)(shu)入，具有持續性短(duan)路(lu)(lu)保護，這款型號的(de)(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)具有交(jiao)直(zhi)流(liu)兩用，低紋(wen)波，低溫升、低功耗(hao)、高效率(lv)、高安全(quan)隔離(li)等優點(dian)，屬于(yu)一(yi)款應用在通(tong)訊(xun)系列產品(pin)（路(lu)(lu)由(you)器(qi)）上的(de)(de)(de)經濟型隔離(li)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)，該模(mo)(mo)(mo)(mo)塊(kuai)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)輸(shu)(shu)(shu)出功率(lv)為1w~3w，輸(shu)(shu)(shu)入電(dian)(dian)(dian)壓(ya)為4.5~5.5v，輸(shu)(shu)(shu)出電(dian)(dian)(dian)壓(ya)為5v，隔離(li)電(dian)(dian)(dian)壓(ya)為1500VAC/1min，當電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)輸(shu)(shu)(shu)出過載時(shi)，起短(duan)路(lu)(lu)保護作用。散熱(re)方便模(mo)(mo)(mo)(mo)塊(kuai)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)外殼(ke)有集熱(re)器(qi)、散熱(re)器(qi)和外殼(ke)三位一(yi)體(ti)的(de)(de)(de)結構形式(shi)。DCDC電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)直(zhi)銷

電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)并(bing)聯應(ying)用(yong)均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)方(fang)(fang)法(fa)(fa)。輸(shu)出(chu)(chu)(chu)阻抗法(fa)(fa)或稱斜率(lv)法(fa)(fa)、下垂法(fa)(fa)。基本(ben)原(yuan)理是調整(zheng)輸(shu)出(chu)(chu)(chu)內電(dian)(dian)(dian)阻保(bao)持均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)，缺陷是工作(zuo)電(dian)(dian)(dian)壓調節率(lv)差。主(zhu)(zhu)從關(guan)系法(fa)(fa)，基本(ben)原(yuan)理是以(yi)中選(xuan)中1個(ge)當主(zhu)(zhu)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)，其(qi)他控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)輔助，缺陷是假如主(zhu)(zhu)控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)發現(xian)異常，全(quan)部系統將沒法(fa)(fa)運行。均(jun)(jun)(jun)值電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量自動均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)法(fa)(fa)，基本(ben)原(yuan)理是將模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)的電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量變(bian)(bian)大(da)(da)(da)后根據1個(ge)電(dian)(dian)(dian)阻器(qi)聯接到公共的均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)母線(xian)槽上，依(yi)(yi)照(zhao)均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)母線(xian)槽上的均(jun)(jun)(jun)值電(dian)(dian)(dian)壓保(bao)持調節均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)。外接控(kong)(kong)制法(fa)(fa)，基本(ben)原(yuan)理是應(ying)用(yong)控(kong)(kong)制板調整(zheng)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量實現(xian)均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)。缺陷是需付加聯線(xian)和(he)均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)控(kong)(kong)制板。自動均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)法(fa)(fa)，基本(ben)原(yuan)理是讓輸(shu)出(chu)(chu)(chu)較(jiao)大(da)(da)(da)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量的模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)全(quan)自動變(bian)(bian)成(cheng)(cheng)主(zhu)(zhu)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)，其(qi)他控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)輸(shu)出(chu)(chu)(chu)向主(zhu)(zhu)控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)挨近。供熱(re)全(quan)自動均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)法(fa)(fa)，基本(ben)原(yuan)理是讓溫(wen)度低的控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量大(da)(da)(da)，溫(wen)度高的控(kong)(kong)制模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量小來(lai)保(bao)持均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)。現(xian)階段(duan)并(bing)聯技術依(yi)(yi)然逆變(bian)(bian)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)用(yong)于(yu)提升可靠性和(he)擴(kuo)張容(rong)量的關(guan)鍵(jian)方(fang)(fang)式(shi)，逆變(bian)(bian)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)并(bing)聯操縱(zong)方(fang)(fang)法(fa)(fa)有(you)主(zhu)(zhu)從關(guan)系、集中化、遍(bian)布、3C操縱(zong)、無互(hu)聯線(xian)操縱(zong)等5種(zhong)操縱(zong)方(fang)(fang)法(fa)(fa)。并(bing)聯電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)如今(jin)早已變(bian)(bian)成(cheng)(cheng)了電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)供配電(dian)(dian)(dian)系統發展趨勢的1個(ge)關(guan)鍵(jian)方(fang)(fang)位，比單一化式(shi)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)更有(you)供電(dian)(dian)(dian)效(xiao)率(lv)，均(jun)(jun)(jun)流(liu)(liu)(liu)(liu)(liu)(liu)控(kong)(kong)制不單單是并(bing)聯式(shi)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)的重(zhong)要技術，另(ling)外是大(da)(da)(da)功率(lv)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)冗余電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)的重(zhong)要技術。山東DCDC電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)哪家專業在進行電(dian)(dian)(dian)壓模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)(kuai)選(xuan)擇(ze)時，不是功率(lv)額定越大(da)(da)(da)越好。

DC-DC隔(ge)(ge)離(li)(li)電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)可適用(yong)于各種工業儀(yi)表(biao)中，可為通道(dao)隔(ge)(ge)離(li)(li)采集(ji)電(dian)(dian)路供(gong)(gong)電(dian)(dian)、隔(ge)(ge)離(li)(li)RS485/RS232/CAN模塊供(gong)(gong)電(dian)(dian)、隔(ge)(ge)離(li)(li)數字(zi)量輸入輸出供(gong)(gong)電(dian)(dian)等等。在之前做了幾個項目，二次儀(yi)表(biao)，隔(ge)(ge)離(li)(li)器等等，都(dou)需要(yao)多路隔(ge)(ge)離(li)(li)電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，而且(qie)系統內隔(ge)(ge)離(li)(li)電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)功(gong)率不(bu)(bu)大(da)，但數量很多，如(ru)果一直(zhi)采用(yong)金升(sheng)陽(yang)，愛浦等隔(ge)(ge)離(li)(li)電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)小(xiao)模塊，成(cheng)(cheng)本高(gao)且(qie)不(bu)(bu)說，還(huan)占用(yong)體積(ji)，用(yong)小(xiao)體積(ji)的(de)(de)吧(ba)，溫升(sheng)又是個問(wen)題，因此有(you)必要(yao)做個多通道(dao)，小(xiao)體積(ji)的(de)(de)隔(ge)(ge)離(li)(li)電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，降(jiang)低(di)成(cheng)(cheng)本的(de)(de)同時，還(huan)能夠(gou)有(you)效(xiao)降(jiang)低(di)溫升(sheng)。如(ru)果有(you)電(dian)(dian)子(zi)工程師不(bu)(bu)太懂電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)設計，又需要(yao)多路電(dian)(dian)源(yuan)(yuan)(yuan)(yuan)隔(ge)(ge)離(li)(li)輸出，那么(me)這個電(dian)(dian)路方(fang)案肯定(ding)能用(yong)的(de)(de)上，調試簡單，拓撲也(ye)簡單，繞變壓器不(bu)(bu)需要(yao)算氣(qi)隙(xi)，直(zhi)接計算匝數就(jiu)可以了，非(fei)常方(fang)便。說白了就(jiu)是簡單實(shi)用(yong)。

開(kai)關噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(SWITCHINGNOISE)，這種噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)發生在電(dian)源(yuan)的(de)開(kai)關時(shi)刻。雖然開(kai)關噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)重復(fu)周期(qi)和PWM頻(pin)率(lv)(lv)(lv)一(yi)致，但(dan)是(shi)(shi)振蕩頻(pin)率(lv)(lv)(lv)一(yi)般(ban)(ban)都很高。開(kai)關噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)新的(de)振幅一(yi)般(ban)(ban)取決于電(dian)源(yuan)芯片(pian)、電(dian)路寄生參數以(yi)(yi)及PCB布板。工頻(pin)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(RecfifiedmainRIPPLE)，一(yi)般(ban)(ban)是(shi)(shi)交流供電(dian)頻(pin)率(lv)(lv)(lv)的(de)兩倍。我國供電(dian)頻(pin)率(lv)(lv)(lv)是(shi)(shi)50Hz，所以(yi)(yi)它的(de)紋波主要來自工頻(pin)50Hz變壓器(qi)。大小(xiao)取決于整(zheng)(zheng)流電(dian)路的(de)類(lei)型。對(dui)于半波整(zheng)(zheng)流，50Hz；對(dui)于全波整(zheng)(zheng)流，是(shi)(shi)100Hz；對(dui)于三相(xiang)全波整(zheng)(zheng)流，300Hz。非周期(qi)性的(de)隨(sui)機噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(NOISE)，和AC電(dian)源(yuan)開(kai)關頻(pin)率(lv)(lv)(lv)均無關。由于現在AC-DC部(bu)分(fen)大多采用模塊(kuai)開(kai)關電(dian)源(yuan)，后級DC/DC電(dian)路工頻(pin)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)比(bi)較小(xiao)；隨(sui)機噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)無法量化。所以(yi)(yi)一(yi)般(ban)(ban)不(bu)考慮這兩項的(de)影響，是(shi)(shi)典(dian)型的(de)開(kai)關電(dian)源(yuan)紋波噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)。我們需要測量的(de)是(shi)(shi)紋波以(yi)(yi)及開(kai)關噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)之和。大部(bu)分(fen)電(dian)源(yuan)模塊(kuai)一(yi)般(ban)(ban)沒有電(dian)流共享功能，不(bu)能直接并行使用，以(yi)(yi)達到(dao)增加輸出功率(lv)(lv)(lv)的(de)效(xiao)果。

絕(jue)大多數的(de)(de)電(dian)(dian)(dian)路都必須實(shi)現(xian)隔(ge)離(li)，即將(jiang)負(fu)(fu)載(zai)連同(tong)負(fu)(fu)載(zai)對(dui)本地電(dian)(dian)(dian)源(yuan)的(de)(de)噪聲與電(dian)(dian)(dian)網的(de)(de)其他負(fu)(fu)載(zai)和噪聲隔(ge)開。只有(you)隔(ge)離(li)變(bian)換器(qi)能夠達到(dao)這個(ge)要求(qiu)(qiu)。采用隔(ge)離(li)變(bian)換器(qi)除了(le)實(shi)現(xian)上(shang)述要求(qiu)(qiu)之外，還(huan)可(ke)以實(shi)現(xian)差分形式的(de)(de)輸出(chu)(chu)(chu)，以及雙極型(xing)(xing)輸出(chu)(chu)(chu)。此(ci)外，將(jiang)隔(ge)離(li)型(xing)(xing)變(bian)換器(qi)的(de)(de)輸出(chu)(chu)(chu)高(gao)壓(ya)端與負(fu)(fu)載(zai)的(de)(de)電(dian)(dian)(dian)源(yuan)地相連，就形成了(le)負(fu)(fu)電(dian)(dian)(dian)源(yuan)。由于電(dian)(dian)(dian)壓(ya)參考(kao)點不是(shi)地，因此(ci)負(fu)(fu)載(zai)可(ke)以獲得更高(gao)的(de)(de)電(dian)(dian)(dian)壓(ya)。采用隔(ge)離(li)型(xing)(xing)變(bian)換器(qi)的(de)(de)另一個(ge)妙處(chu)是(shi)：可(ke)以將(jiang)多個(ge)具有(you)不同(tong)輸出(chu)(chu)(chu)電(dian)(dian)(dian)壓(ya)的(de)(de)變(bian)換器(qi)級聯(lian)起來，構(gou)成一個(ge)電(dian)(dian)(dian)源(yuan)。對(dui)于那(nei)些單(dan)個(ge)變(bian)換器(qi)的(de)(de)輸出(chu)(chu)(chu)電(dian)(dian)(dian)壓(ya)達不到(dao)工作電(dian)(dian)(dian)壓(ya)要求(qiu)(qiu)的(de)(de)設備，這種特性非常有(you)用。一般電(dian)(dian)(dian)源(yuan)模塊一般的(de)(de)電(dian)(dian)(dian)壓(ya)輸入范圍很寬(kuan)。奉賢區DCDC電(dian)(dian)(dian)源(yuan)模塊質量怎(zen)么樣

通用電(dian)源(yuan)模塊(kuai)一般不支持熱插拔功能(neng)(neng)，熱插拔會(hui)導(dao)致高電(dian)壓尖(jian)峰，可能(neng)(neng)導(dao)致電(dian)源(yuan)產品長(chang)久損壞。DCDC電(dian)源(yuan)模塊(kuai)直銷

在(zai)選擇時(shi)(shi)，需要(yao)注意以下(xia)兩個(ge)方面：，引腳是否(fou)在(zai)同(tong)一平面上(shang)；第二，是否(fou)便于焊(han)接(jie)。SMT形(xing)式(shi)的變(bian)換(huan)器必(bi)須要(yao)符(fu)合IEC191-6:1990標(biao)準(zhun)的要(yao)求(qiu)(qiu)，該標(biao)準(zhun)對(dui)SMT器件(jian)(jian)引腳的共面問題做出了嚴(yan)格限(xian)定(ding)。器件(jian)(jian)引腳不(bu)共面會造(zao)成器件(jian)(jian)裝配(pei)時(shi)(shi)定(ding)位困難，嚴(yan)重(zhong)影(ying)響焊(han)接(jie)質量，提高次(ci)品率。SMT形(xing)式(shi)的變(bian)換(huan)器應(ying)能承受規定(ding)的焊(han)接(jie)條件(jian)(jian)。對(dui)于絕大多數現(xian)代流水線而言，器件(jian)(jian)必(bi)須滿足CEC00802標(biao)準(zhun)所(suo)規定(ding)的回(hui)流焊(han)要(yao)求(qiu)(qiu)，即器件(jian)(jian)表面溫度可超過300℃。如果變(bian)換(huan)器不(bu)能滿足這個(ge)要(yao)求(qiu)(qiu)，就需要(yao)為其設(she)計專門的焊(han)接(jie)裝配(pei)工藝，這會增加裝配(pei)時(shi)(shi)間(jian)，提高生產成本。DCDC電源模(mo)塊直銷(xiao)

上海(hai)多商(shang)(shang)電(dian)(dian)(dian)子(zi)有(you)限公(gong)司(si)(si)主營品牌有(you)上海(hai)多商(shang)(shang)，發展(zhan)規模團(tuan)隊不斷壯大(da)(da)，該公(gong)司(si)(si)生產型的(de)公(gong)司(si)(si)。公(gong)司(si)(si)致力于(yu)為客戶提(ti)供(gong)安全、質(zhi)量(liang)有(you)保(bao)證的(de)良(liang)好產品及服務，是一家有(you)限責任公(gong)司(si)(si)企業。以(yi)滿(man)足顧(gu)(gu)客要求為己任；以(yi)顧(gu)(gu)客永遠(yuan)滿(man)意為標準；以(yi)保(bao)持行業優(you)先(xian)為目標，提(ti)供(gong)高品質(zhi)的(de)充電(dian)(dian)(dian)電(dian)(dian)(dian)源，ACDC電(dian)(dian)(dian)源模塊(kuai)，DCDC電(dian)(dian)(dian)源模塊(kuai)，大(da)(da)功(gong)率(lv)(lv)電(dian)(dian)(dian)源模塊(kuai)。上海(hai)多商(shang)(shang)電(dian)(dian)(dian)子(zi)順應(ying)時代發展(zhan)和市場(chang)需求，通(tong)過高端技(ji)術，力圖保(bao)證高規格高質(zhi)量(liang)的(de)充電(dian)(dian)(dian)電(dian)(dian)(dian)源，ACDC電(dian)(dian)(dian)源模塊(kuai)，DCDC電(dian)(dian)(dian)源模塊(kuai)，大(da)(da)功(gong)率(lv)(lv)電(dian)(dian)(dian)源模塊(kuai)。

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