當今的(de)智能開關(guan)電(dian)(dian)(dian)(dian)源(yuan)具(ju)有(you)(you)用(yong)于內部(bu)監視(shi)(shi)和(he)(he)(he)通信的(de)內部(bu)微(wei)處理器(qi)或DSP。微(wei)處理器(qi)芯片(pian)具(ju)有(you)(you)非常(chang)(chang)高的(de)功率要求，所需的(de)幅度非常(chang)(chang)穩定，更不(bu)(bu)用(yong)說會引(yin)起電(dian)(dian)(dian)(dian)磁(ci)干(gan)擾的(de)大(da)尖峰和(he)(he)(he)毛刺，并且輔助(zhu)電(dian)(dian)(dian)(dian)源(yuan)的(de)交(jiao)流(liu)(liu)適(shi)應(ying)性大(da)于整流(liu)(liu)器(qi)的(de)正常(chang)(chang)工作范圍必(bi)須(xu)寬泛，當整流(liu)(liu)器(qi)連接到交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)時，監視(shi)(shi)部(bu)分(fen)(fen)必(bi)須(xu)首先正常(chang)(chang)運(yun)行，執行自檢(jian)和(he)(he)(he)各種條件(jian)以(yi)查(cha)看整流(liu)(liu)器(qi)是(shi)否可(ke)以(yi)打開。如(ru)果交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)過高或過低，整流(liu)(liu)器(qi)將(jiang)停止(zhi)工作。但是(shi)，監視(shi)(shi)部(bu)分(fen)(fen)必(bi)須(xu)繼續正常(chang)(chang)運(yun)行，并保持正常(chang)(chang)的(de)監視(shi)(shi)和(he)(he)(he)通信。在操(cao)作過程(cheng)中，某些電(dian)(dian)(dian)(dian)源(yuan)產品出現無(wu)緣無(wu)故(gu)復(fu)位情況。對大(da)容量開關(guan)電(dian)(dian)(dian)(dian)源(yuan)輔助(zhu)電(dian)(dian)(dian)(dian)源(yuan)的(de)設計(ji)分(fen)(fen)析表明，該輔助(zhu)電(dian)(dian)(dian)(dian)源(yuan)在不(bu)(bu)同(tong)的(de)交(jiao)流(liu)(liu)輸入電(dian)(dian)(dian)(dian)壓(ya)和(he)(he)(he)不(bu)(bu)同(tong)的(de)負載條件(jian)下存在很多問題(ti)。常(chang)(chang)見(jian)問題(ti)有(you)(you)交(jiao)流(liu)(liu)適(shi)應(ying)范圍，低負載能力(li)，工作波形不(bu)(bu)穩定、不(bu)(bu)對稱的(de)情況，磁(ci)偏(pian)置，嚴重的(de)電(dian)(dian)(dian)(dian)磁(ci)干(gan)擾等。精密數控直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)設計(ji)。直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)源(yuan)

當今的(de)智能(neng)開關(guan)電源(yuan)(yuan)具有(you)用于內(nei)(nei)部(bu)監(jian)視和通(tong)信的(de)內(nei)(nei)部(bu)微處理器(qi)(qi)或(huo)DSP。微處理器(qi)(qi)芯片(pian)具有(you)非常(chang)(chang)高的(de)功率(lv)要求，所需的(de)幅度(du)非常(chang)(chang)穩(wen)定，更不用說會引起電磁(ci)干(gan)擾(rao)的(de)大尖峰和毛刺，并(bing)(bing)且輔助電源(yuan)(yuan)的(de)交(jiao)流(liu)(liu)(liu)適(shi)(shi)應(ying)性大于整流(liu)(liu)(liu)器(qi)(qi)的(de)正(zheng)常(chang)(chang)工作(zuo)范(fan)(fan)圍(wei)必須寬(kuan)泛(fan)。當整流(liu)(liu)(liu)器(qi)(qi)連接(jie)到交(jiao)流(liu)(liu)(liu)電源(yuan)(yuan)時，監(jian)視部(bu)分(fen)必須首(shou)先(xian)正(zheng)常(chang)(chang)運行(xing)，執行(xing)自檢和各種(zhong)條件以查看整流(liu)(liu)(liu)器(qi)(qi)是(shi)否可以打開。如果(guo)交(jiao)流(liu)(liu)(liu)電壓(ya)(ya)過高或(huo)過低，整流(liu)(liu)(liu)器(qi)(qi)將停止(zhi)工作(zuo)。但是(shi)，監(jian)視部(bu)分(fen)必須繼(ji)續正(zheng)常(chang)(chang)運行(xing)，并(bing)(bing)保持正(zheng)常(chang)(chang)的(de)監(jian)視和通(tong)信。在(zai)(zai)操作(zuo)過程(cheng)中(zhong)，某些(xie)電源(yuan)(yuan)產(chan)品出現無(wu)緣無(wu)故復(fu)位情況，對(dui)大容量開關(guan)電源(yuan)(yuan)輔助電源(yuan)(yuan)的(de)設計分(fen)析表明，該輔助電源(yuan)(yuan)在(zai)(zai)不同的(de)交(jiao)流(liu)(liu)(liu)輸入電壓(ya)(ya)和不同的(de)負(fu)載條件下(xia)存在(zai)(zai)很多問題。常(chang)(chang)見問題有(you)交(jiao)流(liu)(liu)(liu)適(shi)(shi)應(ying)范(fan)(fan)圍(wei)，低負(fu)載能(neng)力，工作(zuo)波形不穩(wen)定、不對(dui)稱的(de)情況，磁(ci)偏置，嚴重的(de)電磁(ci)干(gan)擾(rao)等。轉(zhuan)24v直流(liu)(liu)(liu)電源(yuan)(yuan)高壓(ya)(ya)直流(liu)(liu)(liu)電源(yuan)(yuan)系統有(you)哪些(xie)特點？

嵌(qian)入(ru)式電(dian)(dian)(dian)(dian)路設計(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)源為所(suo)(suo)有(you)功(gong)(gong)(gong)能(neng)模(mo)(mo)塊提(ti)供能(neng)源，其(qi)(qi)效率和(he)功(gong)(gong)(gong)耗是反(fan)應(ying)電(dian)(dian)(dian)(dian)路設計(ji)(ji)成功(gong)(gong)(gong)與否(fou)的(de)(de)絕dui標志，故將穩壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)源所(suo)(suo)涉及(ji)到的(de)(de)知識點梳理(li)總結以(yi)鞏固(gu)知識點。在嵌(qian)入(ru)式系統設計(ji)(ji)中所(suo)(suo)使(shi)用均(jun)是小功(gong)(gong)(gong)率芯片而(er)諸如PC電(dian)(dian)(dian)(dian)源等大(da)功(gong)(gong)(gong)率電(dian)(dian)(dian)(dian)源可(ke)以(yi)直接找(zhao)專業開關電(dian)(dian)(dian)(dian)源廠商直接購(gou)買，且開發難度非常大(da)只(zhi)有(you)專業電(dian)(dian)(dian)(dian)源工程師才能(neng)把握。常用直流穩壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)源可(ke)分為線性(xing)穩壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)源（俗稱LDO）和(he)開關穩壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)源。前(qian)者(zhe)調整元(yuan)件工作于(yu)(yu)線性(xing)放大(da)區，通(tong)過連續(xu)的(de)(de)電(dian)(dian)(dian)(dian)流所(suo)(suo)以(yi)其(qi)(qi)動態(tai)響(xiang)應(ying)較好，但其(qi)(qi)功(gong)(gong)(gong)耗和(he)體積(ji)較大(da)轉(zhuan)換(huan)效率很低，一般(ban)進(jin)行降壓(ya)(ya)(ya)(ya)轉(zhuan)換(huan)處(chu)理(li)，使(shi)用在較敏感模(mo)(mo)擬電(dian)(dian)(dian)(dian)路。后者(zhe)體積(ji)和(he)功(gong)(gong)(gong)耗較小轉(zhuan)換(huan)效率高，但其(qi)(qi)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)輸出(chu)紋波大(da)，動態(tai)響(xiang)應(ying)差，可(ke)用于(yu)(yu)降壓(ya)(ya)(ya)(ya)或(huo)升(sheng)壓(ya)(ya)(ya)(ya)轉(zhuan)換(huan)處(chu)理(li)。

嵌(qian)入式電(dian)(dian)路(lu)設計的(de)電(dian)(dian)源(yuan)為所(suo)(suo)有(you)功(gong)(gong)(gong)能模塊提供能源(yuan)，其(qi)效(xiao)率(lv)(lv)和(he)功(gong)(gong)(gong)耗(hao)是(shi)反應電(dian)(dian)路(lu)設計成功(gong)(gong)(gong)與否的(de)絕(jue)dui標志，故將穩(wen)(wen)壓(ya)電(dian)(dian)源(yuan)所(suo)(suo)涉及到的(de)知(zhi)識點梳理總結以(yi)鞏固知(zhi)識點。在嵌(qian)入式系(xi)統設計中所(suo)(suo)使(shi)(shi)用均(jun)是(shi)小(xiao)功(gong)(gong)(gong)率(lv)(lv)芯片(pian)，而諸如PC電(dian)(dian)源(yuan)等大(da)功(gong)(gong)(gong)率(lv)(lv)電(dian)(dian)源(yuan)可(ke)以(yi)直(zhi)接(jie)找(zhao)專業(ye)開關(guan)電(dian)(dian)源(yuan)廠商直(zhi)接(jie)購買，且開發難度非常大(da)只有(you)專業(ye)電(dian)(dian)源(yuan)工(gong)程師才能把握。常用直(zhi)流(liu)(liu)(liu)穩(wen)(wen)壓(ya)電(dian)(dian)源(yuan)可(ke)分(fen)為線性穩(wen)(wen)壓(ya)電(dian)(dian)源(yuan)（俗稱LDO）和(he)開關(guan)穩(wen)(wen)壓(ya)電(dian)(dian)源(yuan)。前(qian)者(zhe)調整(zheng)元件工(gong)作于線性放大(da)區，通(tong)過(guo)連(lian)續的(de)電(dian)(dian)流(liu)(liu)(liu)所(suo)(suo)以(yi)其(qi)動(dong)態響應較好，但其(qi)功(gong)(gong)(gong)耗(hao)和(he)體積較大(da)轉(zhuan)(zhuan)換效(xiao)率(lv)(lv)很低，一般(ban)進行降壓(ya)轉(zhuan)(zhuan)換處理，使(shi)(shi)用在較敏感模擬電(dian)(dian)路(lu)。后者(zhe)體積和(he)功(gong)(gong)(gong)耗(hao)較小(xiao)轉(zhuan)(zhuan)換效(xiao)率(lv)(lv)高，但其(qi)電(dian)(dian)壓(ya)輸出紋(wen)波大(da)，動(dong)態響應差，可(ke)用于降壓(ya)或(huo)升壓(ya)轉(zhuan)(zhuan)換處理。使(shi)(shi)用直(zhi)流(liu)(liu)(liu)穩(wen)(wen)壓(ya)電(dian)(dian)源(yuan)時的(de)注意事項！

當今的(de)(de)(de)智能開(kai)關電(dian)(dian)(dian)源具有(you)(you)(you)(you)用于內部(bu)監視(shi)(shi)和通(tong)信的(de)(de)(de)內部(bu)微處(chu)理器或(huo)DSP。微處(chu)理器芯片具有(you)(you)(you)(you)非常高的(de)(de)(de)功率要(yao)求，所需的(de)(de)(de)幅度(du)非常穩定，更不(bu)(bu)(bu)用說會(hui)引起電(dian)(dian)(dian)磁干(gan)擾的(de)(de)(de)大尖峰和毛刺，并且輔助電(dian)(dian)(dian)源的(de)(de)(de)交流適(shi)應(ying)性大于整(zheng)流器的(de)(de)(de)正(zheng)常工(gong)作(zuo)范圍必須(xu)寬(kuan)泛。當整(zheng)流器連接到交流電(dian)(dian)(dian)源時，監視(shi)(shi)部(bu)分(fen)必須(xu)首先正(zheng)常運行(xing)，執(zhi)行(xing)自檢和各種(zhong)條件以(yi)查看整(zheng)流器是(shi)(shi)否可以(yi)打開(kai)。如果(guo)交流電(dian)(dian)(dian)壓過(guo)高或(huo)過(guo)低(di)，整(zheng)流器將停止工(gong)作(zuo)。但是(shi)(shi)，監視(shi)(shi)部(bu)分(fen)必須(xu)繼續正(zheng)常運行(xing)，并保(bao)持正(zheng)常的(de)(de)(de)監視(shi)(shi)和通(tong)信。在(zai)操作(zuo)過(guo)程中，某些電(dian)(dian)(dian)源產(chan)品出現無(wu)緣無(wu)故復位情(qing)(qing)況。對大容量開(kai)關電(dian)(dian)(dian)源輔助電(dian)(dian)(dian)源的(de)(de)(de)設計分(fen)析表明，該(gai)輔助電(dian)(dian)(dian)源在(zai)不(bu)(bu)(bu)同(tong)的(de)(de)(de)交流輸入電(dian)(dian)(dian)壓和不(bu)(bu)(bu)同(tong)的(de)(de)(de)負載條件下存在(zai)很多問(wen)題(ti)(ti)。常見問(wen)題(ti)(ti)有(you)(you)(you)(you)交流適(shi)應(ying)范圍，低(di)負載能力，工(gong)作(zuo)波形不(bu)(bu)(bu)穩定、不(bu)(bu)(bu)對稱的(de)(de)(de)情(qing)(qing)況，磁偏置，嚴重的(de)(de)(de)電(dian)(dian)(dian)磁干(gan)擾等交直流電(dian)(dian)(dian)源的(de)(de)(de)主(zhu)要(yao)區(qu)別有(you)(you)(you)(you)哪些？通(tong)信直流電(dian)(dian)(dian)源

電源(yuan)技術中的分析關于高壓直(zhi)流電源(yuan)控制(zhi)系統(tong)的研究。直(zhi)流電解電源(yuan)

開關整流(liu)器(qi)(qi)輔(fu)助(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)一般工(gong)作(zuo)(zuo)(zuo)原理是(shi)輸(shu)入(ru)交流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，將其整流(liu)為(wei)(wei)高(gao)壓(ya)直(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，然后將電(dian)(dian)(dian)(dian)(dian)路(lu)轉(zhuan)換(huan)(huan)(huan)(huan)為(wei)(wei)低(di)(di)壓(ya)高(gao)頻方波(bo)(bo)，然后將整流(liu)器(qi)(qi)濾波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)路(lu)轉(zhuan)換(huan)(huan)(huan)(huan)為(wei)(wei)系統轉(zhuan)換(huan)(huan)(huan)(huan)為(wei)(wei)低(di)(di)壓(ya)直(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)所需的(de)(de)(de)(de)(de)穩定性。電(dian)(dian)(dian)(dian)(dian)壓(ya)由三端(duan)穩壓(ya)器(qi)(qi)控(kong)(kong)制，直(zhi)(zhi)流(liu)輸(shu)出為(wei)(wei)高(gao)頻轉(zhuan)換(huan)(huan)(huan)(huan)驅(qu)(qu)動脈(mo)(mo)沖控(kong)(kong)制環路(lu)提供電(dian)(dian)(dian)(dian)(dian)壓(ya)反(fan)(fan)饋(kui)信號(hao)主(zhu)功率(lv)轉(zhuan)換(huan)(huan)(huan)(huan)電(dian)(dian)(dian)(dian)(dian)路(lu)中的(de)(de)(de)(de)(de)串聯電(dian)(dian)(dian)(dian)(dian)阻樣(yang)本用(yong)作(zuo)(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)流(liu)反(fan)(fan)饋(kui)信號(hao)，并且(qie)功率(lv)轉(zhuan)換(huan)(huan)(huan)(huan)管驅(qu)(qu)動脈(mo)(mo)沖由控(kong)(kong)制芯(xin)片(例如(ru)UC3844)及其wai圍電(dian)(dian)(dian)(dian)(dian)路(lu)產生。　　可(ke)以看到(dao)，當交流(liu)輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)低(di)(di)且(qie)沒(mei)有電(dian)(dian)(dian)(dian)(dian)流(liu)反(fan)(fan)饋(kui)時，輔(fu)助(zhu)(zhu)變壓(ya)器(qi)(qi)無法正(zheng)(zheng)常工(gong)作(zuo)(zuo)(zuo)，波(bo)(bo)形的(de)(de)(de)(de)(de)脈(mo)(mo)沖寬度(du)不同，存在(zai)抖(dou)動，并且(qie)示波(bo)(bo)器(qi)(qi)無法穩定地(di)(di)捕(bu)獲(huo)波(bo)(bo)形。對于電(dian)(dian)(dian)(dian)(dian)流(liu)反(fan)(fan)饋(kui)，波(bo)(bo)形的(de)(de)(de)(de)(de)脈(mo)(mo)沖寬度(du)寬而(er)(er)窄，占空(kong)比高(gao)達47%，而(er)(er)UC3844的(de)(de)(de)(de)(de)*'大占空(kong)比jin為(wei)(wei)50%。增加負載(zai)將降低(di)(di)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)。　　在(zai)交流(liu)輸(shu)入(ru)的(de)(de)(de)(de)(de)上限(xian)和(he)下(xia)限(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)下(xia)穩定地(di)(di)操作(zuo)(zuo)(zuo)輔(fu)助(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，并且(qie)在(zai)從空(kong)轉(zhuan)到(dao)過(guo)載(zai)的(de)(de)(de)(de)(de)整個負載(zai)范圍內，通常很難穩定地(di)(di)正(zheng)(zheng)常操作(zuo)(zuo)(zuo)輔(fu)助(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)。技(ji)術問(wen)題：功率(lv)器(qi)(qi)件(jian)的(de)(de)(de)(de)(de)介電(dian)(dian)(dian)(dian)(dian)強(qiang)度(du)和(he)過(guo)載(zai)能(neng)力，高(gao)頻變壓(ya)器(qi)(qi)的(de)(de)(de)(de)(de)設計，控(kong)(kong)制脈(mo)(mo)沖控(kong)(kong)制回(hui)路(lu)的(de)(de)(de)(de)(de)參(can)數(shu)選擇(ze)。直(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)

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