愛好者對(dui)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)點評要客觀(guan)性公平，你(ni)(ni)不(bu)可(ke)以(yi)拿(na)1個沒搞好的(de)(de)(de)(de)(de)物品作參照(zhao)而(er)說它不(bu)太好。有(you)(you)些人環型(xing)(xing)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)非(fei)常容(rong)(rong)易(yi)磁飽(bao)(bao)和(he)(he)狀態，那(nei)么你(ni)(ni)為(wei)(wei)何沒去想方法把它保(bao)證(zheng)(zheng)不(bu)易(yi)磁飽(bao)(bao)和(he)(he)狀態而(er)本(ben)來根據(ju)(ju)方式(shi)(shi)方法是(shi)(shi)能(neng)夠(gou)(gou)保(bao)證(zheng)(zheng)這(zhe)一點兒的(de)(de)(de)(de)(de)。下不(bu)來足時間(jian)或是(shi)(shi)一心地以(yi)便省成(cheng)本(ben)費，那(nei)它或許(xu)就非(fei)常容(rong)(rong)易(yi)磁飽(bao)(bao)和(he)(he)狀態了。同樣，如果你(ni)(ni)用心制做(zuo)，EI型(xing)(xing)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)高效率(lv)都是(shi)(shi)能(neng)保(bao)證(zheng)(zheng)很高的(de)(de)(de)(de)(de)。電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)質量(liang)優(you)劣對(dui)響聲(sheng)的(de)(de)(de)(de)(de)危害挺大，由(you)于(yu)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)傳送動能(neng)與(yu)鐵芯、電(dian)磁線圈緊(jin)密關系，其傳送速度對(dui)響聲(sheng)的(de)(de)(de)(de)(de)危害起根本(ben)性功(gong)(gong)效。像EI型(xing)(xing)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)，大家一般感覺它的(de)(de)(de)(de)(de)中頻(pin)較為(wei)(wei)厚(hou)，高頻(pin)率(lv)則(ze)(ze)(ze)較為(wei)(wei)苗(miao)條，怎(zen)么回事由(you)于(yu)它的(de)(de)(de)(de)(de)傳輸速率(lv)相(xiang)(xiang)對(dui)性較慢(man)。而(er)環型(xing)(xing)呢高頻(pin)較為(wei)(wei)猛(meng)，中高頻(pin)率(lv)則(ze)(ze)(ze)又稍弱一點兒，為(wei)(wei)何由(you)于(yu)它傳輸速率(lv)較為(wei)(wei)快，可(ke)是(shi)(shi)假如根據(ju)(ju)合理的(de)(de)(de)(de)(de)構(gou)造(zao)(zao)更改，我也能(neng)夠(gou)(gou)把環型(xing)(xing)和(he)(he)EI型(xing)(xing)都做(zuo)得非(fei)常完美，因此重(zhong)要還是(shi)(shi)要看著你(ni)(ni)如何做(zuo)。只有(you)(you)少(shao)能(neng)夠(gou)(gou)毫無疑問一點兒的(de)(de)(de)(de)(de)是(shi)(shi)，R型(xing)(xing)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)并(bing)不(bu)是(shi)(shi)太非(fei)常容(rong)(rong)易(yi)搞好。用它來做(zuo)小電(dian)流量(liang)的(de)(de)(de)(de)(de)前面功(gong)(gong)放機(ji)和(he)(he)CD唱(chang)機(ji)電(dian)源(yuan)(yuan)可(ke)以(yi)，假如用于(yu)做(zuo)后級(ji)功(gong)(gong)放的(de)(de)(de)(de)(de)電(dian)源(yuan)(yuan)，則(ze)(ze)(ze)有(you)(you)情(qing)況嚴重(zhong)的(de)(de)(de)(de)(de)缺點。由(you)于(yu)R型(xing)(xing)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)自身的(de)(de)(de)(de)(de)構(gou)造(zao)(zao)方式(shi)(shi)不(bu)太非(fei)常容(rong)(rong)易(yi)更改，而(er)環型(xing)(xing)和(he)(he)EI型(xing)(xing)則(ze)(ze)(ze)相(xiang)(xiang)對(dui)性非(fei)常容(rong)(rong)易(yi)根據(ju)(ju)更改構(gou)造(zao)(zao)來超過靚聲(sheng)目地。18. 電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)設計(ji)需(xu)要考(kao)慮負載變化和(he)(he)電(dian)能(neng)損耗等因素。江西三(san)相(xiang)(xiang)電(dian)源(yuan)(yuan)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)生產廠家

變(bian)壓(ya)器(qi)溫(wen)升通常分(fen)割為二個相(xiang)等的(de)(de)(de)(de)(de)(de)(de)(de)(de)部分(fen)：磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)損耗引起的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)升ΔθFe和銅(tong)損引起的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)升ΔθCu。關(guan)(guan)于磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)總(zong)損耗與溫(wen)升的(de)(de)(de)(de)(de)(de)(de)(de)(de)關(guan)(guan)系(xi)(xi)如(ru)(ru)圖5所示。對(dui)(dui)相(xiang)同(tong)尺寸(cun)(cun)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)（RM14磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)），采用(yong)不(bu)同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)鐵(tie)氧體材料(liao)（熱(re)(re)(re)(re)阻(zu)(zu)系(xi)(xi)數(shu)不(bu)同(tong)），其(qi)(qi)溫(wen)升值是(shi)(shi)不(bu)同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，其(qi)(qi)中N67材料(liao)有(you)比其(qi)(qi)它(ta)材料(liao)更低的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)阻(zu)(zu)。于是(shi)(shi)，磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)溫(wen)升與磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)總(zong)損耗的(de)(de)(de)(de)(de)(de)(de)(de)(de)關(guan)(guan)系(xi)(xi)可用(yong)下式(shi)(shi)表(biao)示：ΔθFe=Rth·RFe（5）式(shi)(shi)中，Rth即(ji)為熱(re)(re)(re)(re)阻(zu)(zu)，定(ding)義為每瓦(wa)特(te)總(zong)消(xiao)散時(shi)規定(ding)熱(re)(re)(re)(re)點處的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)升（k/W）。鐵(tie)氧體材料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)傳(chuan)導(dao)系(xi)(xi)數(shu)，磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)尺寸(cun)(cun)及開關(guan)(guan)對(dui)(dui)熱(re)(re)(re)(re)阻(zu)(zu)有(you)影響，并可用(yong)下述經驗(yan)公式(shi)(shi)來表(biao)示：Rth=)(6)式(shi)(shi)中，S：磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)表(biao)面(mian)積；d:磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)尺寸(cun)(cun)；α：表(biao)面(mian)熱(re)(re)(re)(re)傳(chuan)導(dao)系(xi)(xi)數(shu)；λ：磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)內部熱(re)(re)(re)(re)傳(chuan)導(dao)系(xi)(xi)數(shu)。由上式(shi)(shi)可見，對(dui)(dui)電源(yuan)變(bian)壓(ya)器(qi)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)鐵(tie)氧體材料(liao)，必須具有(you)低的(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)率損耗和高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)傳(chuan)導(dao)系(xi)(xi)數(shu)。實際測(ce)量表(biao)明，圖5所示的(de)(de)(de)(de)(de)(de)(de)(de)(de)N67材料(liao)顯示高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)導(dao)性。從微觀(guan)結(jie)構考(kao)慮，高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)燒結(jie)密度，均(jun)勻的(de)(de)(de)(de)(de)(de)(de)(de)(de)晶粒結(jie)構，以及晶界里有(you)足夠的(de)(de)(de)(de)(de)(de)(de)(de)(de)Ca濃度，將(jiang)是(shi)(shi)有(you)高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)導(dao)性。從磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)尺寸(cun)(cun)形狀考(kao)慮，較大磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)尺寸(cun)(cun)給(gei)出低的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)阻(zu)(zu)，其(qi)(qi)中ETD磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)具有(you)優良(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)阻(zu)(zu)特(te)性，見圖6；另外(wai)無中心孔的(de)(de)(de)(de)(de)(de)(de)(de)(de)RM磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)（RM14A）顯示出比有(you)中心孔磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)（RM14B）更低的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)阻(zu)(zu)。對(dui)(dui)高(gao)(gao)頻電源(yuan)變(bian)壓(ya)器(qi)磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)，磁(ci)(ci)(ci)(ci)芯(xin)(xin)(xin)(xin)設計時(shi)應盡量增加暴露表(biao)面(mian)，如(ru)(ru)擴大背部和外(wai)翼，或制成寬(kuan)而(er)薄的(de)(de)(de)(de)(de)(de)(de)(de)(de)形狀。海(hai)南(nan)豆(dou)漿(jiang)機(ji)電源(yuan)變(bian)壓(ya)器(qi)哪家好7. 電源(yuan)變(bian)壓(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)匝數(shu)比決(jue)定(ding)了輸(shu)入(ru)電壓(ya)和輸(shu)出電壓(ya)之間的(de)(de)(de)(de)(de)(de)(de)(de)(de)比例關(guan)(guan)系(xi)(xi)。

表(biao)面積與(yu)體積的(de)(de)(de)(de)(de)(de)比率(lv)(lv)）、表(biao)面的(de)(de)(de)(de)(de)(de)熱輻射、允許溫升、工作(zuo)環境和(he)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)工作(zuo)頻(pin)率(lv)(lv)等(deng)，不能(neng)把輸出功率(lv)(lv)與(yu)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)大(da)小(xiao)簡單地聯系(xi)(xi)起來。要借助磁(ci)(ci)芯生(sheng)產商提供的(de)(de)(de)(de)(de)(de)特(te)定(ding)磁(ci)(ci)芯計算(suan)(suan)圖表(biao)和(he)某(mou)些特(te)殊的(de)(de)(de)(de)(de)(de)計算(suan)(suan)公(gong)式(shi)，對(dui)(dui)高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)對(dui)(dui)流(liu)(liu)冷(leng)卻(que)、工作(zuo)頻(pin)率(lv)(lv)和(he)工作(zuo)溫度等(deng)關系(xi)(xi)曲線(xian)進(jin)行正確的(de)(de)(de)(de)(de)(de)選用和(he)計算(suan)(suan)。變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)繞制(zhi)(zhi)(zhi)是(shi)值(zhi)得重(zhong)視(shi)的(de)(de)(de)(de)(de)(de)。有了完好的(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)作(zuo)材料、正確的(de)(de)(de)(de)(de)(de)設計數據(ju)，不一(yi)定(ding)能(neng)制(zhi)(zhi)(zhi)造出性能(neng)的(de)(de)(de)(de)(de)(de)GAO品zhi的(de)(de)(de)(de)(de)(de)高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)繞制(zhi)(zhi)(zhi)過程也是(shi)一(yi)門(men)專yong技術。高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)匝線(xian)的(de)(de)(de)(de)(de)(de)排(pai)列(lie)、繞線(xian)的(de)(de)(de)(de)(de)(de)松緊(jin)、引線(xian)的(de)(de)(de)(de)(de)(de)長短以及層間(jian)、匝間(jian)所墊絕緣層的(de)(de)(de)(de)(de)(de)材料和(he)層數等(deng)，對(dui)(dui)決定(ding)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)匝間(jian)分布電(dian)(dian)(dian)(dian)容、交流(liu)(liu)電(dian)(dian)(dian)(dian)感量(liang)的(de)(de)(de)(de)(de)(de)漏感、直(zhi)(zhi)流(liu)(liu)損耗、交流(liu)(liu)損耗起著非同小(xiao)可的(de)(de)(de)(de)(de)(de)作(zuo)用。尖峰電(dian)(dian)(dian)(dian)壓(ya)(ya)高(gao)(gao)、紋波電(dian)(dian)(dian)(dian)流(liu)(liu)大(da)、高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)發熱量(liang)高(gao)(gao)與(yu)繞制(zhi)(zhi)(zhi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)工藝(yi)有直(zhi)(zhi)接關系(xi)(xi)。如(ru)果電(dian)(dian)(dian)(dian)路允許，采(cai)用堆(dui)疊式(shi)繞法能(neng)改善輕(qing)載時(shi)的(de)(de)(de)(de)(de)(de)穩壓(ya)(ya)性能(neng)，降低成本，使PCB排(pai)線(xian)和(he)引腳更加(jia)方(fang)便簡單；采(cai)用“三明治”繞法能(neng)加(jia)強磁(ci)(ci)耦合能(neng)力(li)，減(jian)少二次繞組對(dui)(dui)反(fan)饋繞組的(de)(de)(de)(de)(de)(de)干擾(rao)，對(dui)(dui)一(yi)次繞組的(de)(de)(de)(de)(de)(de)漏感起到(dao)屏蔽(bi)作(zuo)用。是(shi)高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)(de)(de)屏蔽(bi)問題。高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)是(shi)向外(wai)發射高(gao)(gao)頻(pin)電(dian)(dian)(dian)(dian)磁(ci)(ci)信號的(de)(de)(de)(de)(de)(de)發生(sheng)源(yuan)，同時(shi)也是(shi)影響電(dian)(dian)(dian)(dian)磁(ci)(ci)兼(jian)容性的(de)(de)(de)(de)(de)(de)一(yi)個ZUI大(da)的(de)(de)(de)(de)(de)(de)難題。對(dui)(dui)高(gao)(gao)頻(pin)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)來說，屏蔽(bi)顯得十分重(zhong)要。

高(gao)頻(pin)(pin)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)性能要求高(gao)頻(pin)(pin)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)，我(wo)們(men)簡(jian)稱高(gao)頻(pin)(pin)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)，它是(shi)(shi)(shi)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)進行電(dian)(dian)(dian)(dian)(dian)能轉(zhuan)換的(de)(de)(de)(de)(de)(de)(de)動力，是(shi)(shi)(shi)決定開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)性能好壞的(de)(de)(de)(de)(de)(de)(de)重要部件，它影(ying)響(xiang)著開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)功率、效率和(he)(he)質量(liang)等。變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)在(zai)(zai)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)(zhong)起著磁耦(ou)合、傳(chuan)送能量(liang)、儲存(cun)電(dian)(dian)(dian)(dian)(dian)能、抑制(zhi)(zhi)尖(jian)峰電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)和(he)(he)尖(jian)峰電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)。另外，它還(huan)與(yu)(yu)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)電(dian)(dian)(dian)(dian)(dian)容構成(cheng)頻(pin)(pin)率振蕩器(qi)，產生(sheng)諧振，調整控制(zhi)(zhi)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，實現(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)升降。所以說，設(she)(she)計(ji)(ji)(ji)(ji)(ji)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)不(bu)如說是(shi)(shi)(shi)設(she)(she)計(ji)(ji)(ji)(ji)(ji)高(gao)頻(pin)(pin)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)，設(she)(she)計(ji)(ji)(ji)(ji)(ji)高(gao)頻(pin)(pin)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)是(shi)(shi)(shi)設(she)(she)計(ji)(ji)(ji)(ji)(ji)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)基礎核(he)(he)(he)XIN。高(gao)頻(pin)(pin)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)設(she)(she)計(ji)(ji)(ji)(ji)(ji)項(xiang)目(mu)包括如下幾個方(fang)面(mian)：1.直流(liu)(liu)輸(shu)入電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)參數(shu)(shu)：輸(shu)入電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)小值(zhi)、輸(shu)入電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)大值(zhi)、一(yi)次(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、占空比的(de)(de)(de)(de)(de)(de)(de)選(xuan)用(yong)(yong)與(yu)(yu)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)，一(yi)次(ci)(ci)平均電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)設(she)(she)計(ji)(ji)(ji)(ji)(ji)與(yu)(yu)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、峰值(zhi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、脈(mo)動電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、有(you)效電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、一(yi)次(ci)(ci)繞(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)(dian)感量(liang)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、一(yi)次(ci)(ci)繞(rao)(rao)組(zu)匝(za)數(shu)(shu)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)。2.二次(ci)(ci)參數(shu)(shu)：次(ci)(ci)級繞(rao)(rao)組(zu)匝(za)數(shu)(shu)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、二次(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)設(she)(she)計(ji)(ji)(ji)(ji)(ji)與(yu)(yu)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)、一(yi)次(ci)(ci)和(he)(he)二次(ci)(ci)繞(rao)(rao)組(zu)線(xian)徑的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)與(yu)(yu)核(he)(he)(he)對，一(yi)次(ci)(ci)和(he)(he)二次(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)密度(du)的(de)(de)(de)(de)(de)(de)(de)檢(jian)查與(yu)(yu)核(he)(he)(he)對。3.高(gao)頻(pin)(pin)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)磁芯(xin)(xin)結構的(de)(de)(de)(de)(de)(de)(de)選(xuan)用(yong)(yong)：磁芯(xin)(xin)大小與(yu)(yu)結構形式的(de)(de)(de)(de)(de)(de)(de)選(xuan)用(yong)(yong)，磁芯(xin)(xin)有(you)效截面(mian)積(ji)、磁芯(xin)(xin)窗(chuang)口面(mian)積(ji)、有(you)效磁路(lu)(lu)長度(du)、磁芯(xin)(xin)氣(qi)隙寬度(du)的(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)。4.骨(gu)架的(de)(de)(de)(de)(de)(de)(de)配置(zhi)與(yu)(yu)計(ji)(ji)(ji)(ji)(ji)算(suan)(suan)(suan)(suan)(suan)：骨(gu)架的(de)(de)(de)(de)(de)(de)(de)繞(rao)(rao)組(zu)寬度(du)、安全隔離(li)邊距(ju)、一(yi)次(ci)(ci)繞(rao)(rao)組(zu)層數(shu)(shu)等。在(zai)(zai)這(zhe)些項(xiang)目(mu)中(zhong)(zhong)有(you)些是(shi)(shi)(shi)需要查表的(de)(de)(de)(de)(de)(de)(de)。4. 電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)主要由鐵(tie)芯(xin)(xin)和(he)(he)線(xian)圈(quan)組(zu)成(cheng)，鐵(tie)芯(xin)(xin)由磁性材料制(zhi)(zhi)成(cheng)以增強(qiang)磁場(chang)的(de)(de)(de)(de)(de)(de)(de)傳(chuan)導和(he)(he)集中(zhong)(zhong)。

附(fu)帶的(de)(de)(de)(de)要(yao)求(qiu)則還(huan)有(you)高(gao)的(de)(de)(de)(de)居(ju)里點，高(gao)的(de)(de)(de)(de)電(dian)(dian)(dian)阻率(lv)(lv)(lv)(lv)，良好的(de)(de)(de)(de)機械強度(du)等。新(xin)發(fa)布的(de)(de)(de)(de)“軟磁(ci)鐵氧體(ti)材(cai)料(liao)(liao)(liao)分類”行(xing)業(ye)標準（等同IEC1332-1995），將高(gao)磁(ci)通密度(du)應用(yong)(yong)的(de)(de)(de)(de)功率(lv)(lv)(lv)(lv)鐵氧體(ti)材(cai)料(liao)(liao)(liao)分為(wei)五類，見表(biao)1。每類鐵氧體(ti)材(cai)料(liao)(liao)(liao)除了對振幅(fu)磁(ci)導率(lv)(lv)(lv)(lv)和功率(lv)(lv)(lv)(lv)損耗提(ti)出(chu)要(yao)求(qiu)外(wai)，還(huan)提(ti)出(chu)了“性能(neng)(neng)因子(zi)”參(can)數(shu)（該參(can)數(shu)將在(zai)下面(mian)(mian)進一步敘述）。從PW1～PW5類別，其適(shi)用(yong)(yong)工作頻率(lv)(lv)(lv)(lv)是逐步提(ti)高(gao)的(de)(de)(de)(de)，如PW1材(cai)料(liao)(liao)(liao)，適(shi)用(yong)(yong)頻率(lv)(lv)(lv)(lv)為(wei)15～100kHz，主要(yao)應用(yong)(yong)于(yu)回(hui)掃變(bian)(bian)壓器(qi)(qi)磁(ci)芯；PW2材(cai)料(liao)(liao)(liao)，適(shi)用(yong)(yong)頻率(lv)(lv)(lv)(lv)為(wei)25～200kHz，主要(yao)應用(yong)(yong)于(yu)開(kai)關電(dian)(dian)(dian)源變(bian)(bian)壓器(qi)(qi)磁(ci)芯；PW3材(cai)料(liao)(liao)(liao)，適(shi)用(yong)(yong)頻率(lv)(lv)(lv)(lv)為(wei)100～300kHz；PW4材(cai)料(liao)(liao)(liao)適(shi)用(yong)(yong)頻率(lv)(lv)(lv)(lv)為(wei)300kHz～1MHz；PW5材(cai)料(liao)(liao)(liao)適(shi)用(yong)(yong)頻率(lv)(lv)(lv)(lv)為(wei)1～3MHz。現在(zai)國內已能(neng)(neng)生(sheng)產相(xiang)當于(yu)PW1～PW3材(cai)料(liao)(liao)(liao)，PW4材(cai)料(liao)(liao)(liao)只能(neng)(neng)小量試(shi)生(sheng)產，PW5材(cai)料(liao)(liao)(liao)尚有(you)待開(kai)發(fa)。3．變(bian)(bian)壓器(qi)(qi)可(ke)傳(chuan)輸功率(lv)(lv)(lv)(lv)眾所周知，變(bian)(bian)壓器(qi)(qi)的(de)(de)(de)(de)可(ke)傳(chuan)輸出(chu)功率(lv)(lv)(lv)(lv)正(zheng)比(bi)于(yu)工作頻率(lv)(lv)(lv)(lv)f，蕞大可(ke)允許(xu)磁(ci)通Bmax，（或可(ke)允許(xu)磁(ci)能(neng)(neng)偏移ΔB）和磁(ci)路截面(mian)(mian)積Ae，并表(biao)示為(wei)：Pth=CfBmaxAeWd(1)式(shi)中，C棗與開(kai)關電(dian)(dian)(dian)源電(dian)(dian)(dian)路工作型式(shi)有(you)關的(de)(de)(de)(de)系數(shu)（如推(tui)挽式(shi)C=1；正(zheng)向變(bian)(bian)換器(qi)(qi)C=；反向變(bian)(bian)換器(qi)(qi)C=）Wd棗繞(rao)組設計參(can)數(shu)（包含電(dian)(dian)(dian)流密度(du)S，占空因子(zi)fcu，繞(rao)組截面(mian)(mian)積AN等）。表(biao)1功率(lv)(lv)(lv)(lv)鐵氧體(ti)材(cai)料(liao)(liao)(liao)分類類別fmax1)kHzfkHzB2)mTμa3)性能(neng)(neng)因子(zi)。19. 電(dian)(dian)(dian)源變(bian)(bian)壓器(qi)(qi)的(de)(de)(de)(de)運行(xing)效率(lv)(lv)(lv)(lv)對電(dian)(dian)(dian)網的(de)(de)(de)(de)穩定性和可(ke)靠性至(zhi)關重要(yao)。貴州電(dian)(dian)(dian)源變(bian)(bian)壓器(qi)(qi)價格

27. 電(dian)源變壓器的可持續發展需要(yao)關注環(huan)境保護和資源利用(yong)的經濟性。江西三(san)相電(dian)源變壓器生產(chan)廠家

[1]電(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)工作原理(li)(li)編輯1、是輸(shu)出和輸(shu)入(ru)共(gong)用(yong)(yong)(yong)一(yi)組(zu)線(xian)(xian)(xian)(xian)圈(quan)的(de)(de)(de)(de)(de)(de)特殊變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi).升壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)和降壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)用(yong)(yong)(yong)不同的(de)(de)(de)(de)(de)(de)抽(chou)(chou)頭(tou)來(lai)實現.比共(gong)用(yong)(yong)(yong)線(xian)(xian)(xian)(xian)圈(quan)少的(de)(de)(de)(de)(de)(de)部(bu)(bu)分(fen)(fen)抽(chou)(chou)頭(tou)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)就降低.比共(gong)用(yong)(yong)(yong)線(xian)(xian)(xian)(xian)圈(quan)多(duo)的(de)(de)(de)(de)(de)(de)部(bu)(bu)分(fen)(fen)抽(chou)(chou)頭(tou)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)就升高.2、其(qi)實原理(li)(li)和普通(tong)(tong)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)一(yi)樣的(de)(de)(de)(de)(de)(de)，只(zhi)不過他的(de)(de)(de)(de)(de)(de)原線(xian)(xian)(xian)(xian)圈(quan)就是它的(de)(de)(de)(de)(de)(de)副(fu)線(xian)(xian)(xian)(xian)圈(quan)```一(yi)般的(de)(de)(de)(de)(de)(de)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)是左邊一(yi)個(ge)原線(xian)(xian)(xian)(xian)圈(quan)通(tong)(tong)過電(dian)(dian)(dian)(dian)(dian)磁(ci)感(gan)應(ying)，使(shi)右邊的(de)(de)(de)(de)(de)(de)副(fu)線(xian)(xian)(xian)(xian)圈(quan)產生電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，自(zi)耦變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)是自(zi)己影響自(zi)己。3、自(zi)耦變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)是只(zhi)有一(yi)個(ge)繞(rao)組(zu)的(de)(de)(de)(de)(de)(de)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)，當作為(wei)(wei)降壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)使(shi)用(yong)(yong)(yong)時，從繞(rao)組(zu)中(zhong)抽(chou)(chou)出一(yi)部(bu)(bu)分(fen)(fen)線(xian)(xian)(xian)(xian)匝作為(wei)(wei)二次繞(rao)組(zu)；當作為(wei)(wei)升壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)使(shi)用(yong)(yong)(yong)時，外施電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)只(zhi)加在繞(rao)組(zu)的(de)(de)(de)(de)(de)(de)—部(bu)(bu)分(fen)(fen)線(xian)(xian)(xian)(xian)匝上。通(tong)(tong)常把同時屬于(yu)一(yi)次和二次的(de)(de)(de)(de)(de)(de)那部(bu)(bu)分(fen)(fen)繞(rao)組(zu)稱(cheng)為(wei)(wei)公共(gong)繞(rao)組(zu)，自(zi)耦變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)其(qi)余部(bu)(bu)分(fen)(fen)稱(cheng)為(wei)(wei)串聯(lian)繞(rao)組(zu)，同容(rong)量(liang)的(de)(de)(de)(de)(de)(de)自(zi)耦變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)與普通(tong)(tong)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)相(xiang)(xiang)比，不但(dan)尺寸小(xiao)，而且效(xiao)率高，并且變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)容(rong)量(liang)越(yue)大，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)越(yue)高。這個(ge)優(you)點就越(yue)加突出。因此(ci)隨著(zhu)電(dian)(dian)(dian)(dian)(dian)力系統的(de)(de)(de)(de)(de)(de)發展、電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)等級(ji)的(de)(de)(de)(de)(de)(de)提(ti)高和輸(shu)送容(rong)量(liang)的(de)(de)(de)(de)(de)(de)增大，自(zi)藕(ou)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)由于(yu)其(qi)容(rong)量(liang)大、損耗(hao)小(xiao)、造(zao)價低而得到大量(liang)應(ying)用(yong)(yong)(yong)。[1]電(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)功能編輯電(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)基本型式(shi)，包括(kuo)兩組(zu)繞(rao)有導線(xian)(xian)(xian)(xian)之線(xian)(xian)(xian)(xian)圈(quan)，并且彼此(ci)以電(dian)(dian)(dian)(dian)(dian)感(gan)方式(shi)稱(cheng)合一(yi)起。當一(yi)交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)（具有某一(yi)已知頻(pin)率）流(liu)(liu)于(yu)其(qi)中(zhong)之一(yi)組(zu)線(xian)(xian)(xian)(xian)圈(quan)時，于(yu)另一(yi)組(zu)線(xian)(xian)(xian)(xian)圈(quan)中(zhong)將感(gan)應(ying)出具有相(xiang)(xiang)同頻(pin)率之交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。江西三相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)生產廠家(jia)

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