變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)是(shi)用(yong)作(zuo)ACDC轉(zhuan)(zhuan)(zhuan)換(huan)模(mo)(mo)塊電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)較(jiao)常用(yong)方法之一，在此(ci)以輸(shu)入電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)100VAC為(wei)例子(zi)網站排名優化，通(tong)過變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)將(jiang)100VAC降壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)（變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)）至可獲(huo)得所需DC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)AC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)(zhi)。這一部分稱為(wei)AC轉(zhuan)(zhuan)(zhuan)換(huan)，行使(shi)(shi)調整(zheng)(zheng)變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)一次側(ce)(ce)和二次側(ce)(ce)的(de)(de)(de)(de)線圈，來設定(ding)變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)(zhi)（發生在變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)二次側(ce)(ce)的(de)(de)(de)(de)降壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)(zhi)）。假如輸(shu)入輸(shu)出(chu)間必需絕(jue)緣(yuan)時(shi)，可行使(shi)(shi)變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)絕(jue)緣(yuan)。行使(shi)(shi)二極管橋式整(zheng)(zheng)流(liu)器(qi)(qi)(qi)將(jiang)已(yi)經降壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)AC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)轉(zhuan)(zhuan)(zhuan)換(huan)成(cheng)DC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，接著用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)(qi)加以平滑成(cheng)都人事考試中心，較(jiao)終轉(zhuan)(zhuan)(zhuan)換(huan)成(cheng)紋(wen)波較(jiao)小的(de)(de)(de)(de)DC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。整(zheng)(zheng)流(liu)后的(de)(de)(de)(de)DC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)是(shi)指AC的(de)(de)(de)(de)峰值(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)（AC√2）減去二極管的(de)(de)(de)(de)正向電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)后的(de)(de)(de)(de)數值(zhi)(zhi)。當不必確保(bao)輸(shu)出(chu)穩(wen)(wen)固(gu)時(shi)，就可以將(jiang)DC電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)作(zuo)為(wei)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)初期(qi)值(zhi)(zhi)取決于變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)匝數比，負載電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)越增長(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)越降低。必須確保(bao)輸(shu)出(chu)穩(wen)(wen)固(gu)時(shi)，使(shi)(shi)用(yong)穩(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)穩(wen)(wen)固(gu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。此(ci)時(shi)，將(jiang)變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)二次側(ce)(ce)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，設定(ding)成(cheng)適合行使(shi)(shi)穩(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)轉(zhuan)(zhuan)(zhuan)換(huan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。例如之后設定(ding)12VDC，整(zheng)(zheng)流(liu)后的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)為(wei)18VDC，就能克制電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)損耗，不會由于工(gong)作(zuo)而變(bian)低，但(dan)也不會因(yin)此(ci)變(bian)高。ACDC電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)模(mo)(mo)塊是(shi)什(shen)么？遼(liao)寧ACDC電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)模(mo)(mo)塊廠家

電(dian)(dian)源(yuan)模塊(kuai)(kuai)是電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)轉換設(she)備之(zhi)一，它的(de)(de)主要(yao)功能是將交流電(dian)(dian)和(he)直(zhi)流電(dian)(dian)相互轉換，除此之(zhi)外，它還(huan)具有(you)維護方便，設(she)計靈活，節省(sheng)成本和(he)時間，高(gao)功率，高(gao)效率和(he)高(gao)可(ke)靠性(xing)的(de)(de)優點。在(zai)某種程度(du)上，也可(ke)以說電(dian)(dian)源(yuan)模塊(kuai)(kuai)是一個帶負反饋的(de)(de)穩壓(ya)(ya)(ya)(ya)(ya)系統，它的(de)(de)性(xing)能指標(biao)大致可(ke)以分為靜態(tai)(tai)指標(biao)和(he)動態(tai)(tai)指標(biao)。靜態(tai)(tai)指標(biao)輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)精度(du)：測(ce)量模塊(kuai)(kuai)的(de)(de)實際輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)與標(biao)稱(cheng)輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)之(zhi)間的(de)(de)差。效率：在(zai)實現電(dian)(dian)源(yuan)模塊(kuai)(kuai)的(de)(de)電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)轉換和(he)功率傳(chuan)輸(shu)(shu)的(de)(de)同(tong)時，它還(huan)測(ce)量其自身的(de)(de)損耗。電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)調整(zheng)率(源(yuan)效應)：測(ce)量模塊(kuai)(kuai)在(zai)不(bu)同(tong)輸(shu)(shu)入電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)下的(de)(de)輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)變(bian)化。溫度(du)漂(piao)移：當模塊(kuai)(kuai)的(de)(de)環境(jing)溫度(du)不(bu)同(tong)時，測(ce)量輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)變(bian)化。電(dian)(dian)流調整(zheng)率(負載(zai)(zai)效應)：輸(shu)(shu)出電(dian)(dian)流不(bu)同(tong)時測(ce)量模塊(kuai)(kuai)的(de)(de)輸(shu)(shu)出電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)變(bian)化狀態(tai)(tai)。北(bei)京ACDC電(dian)(dian)源(yuan)模塊(kuai)(kuai)哪(na)家便宜兩個電(dian)(dian)源(yuan)模塊(kuai)(kuai)并聯用于向負載(zai)(zai)供電(dian)(dian)。

在(zai)(zai)能(neng)(neng)量轉換系(xi)統(tong)，必(bi)然是(shi)會(hui)產生損(sun)耗(hao)，所(suo)以在(zai)(zai)實際應用(yong)中，開(kai)(kai)關(guan)電(dian)(dian)(dian)源模塊工作效率只(zhi)能(neng)(neng)盡可(ke)能(neng)(neng)接近。因為取決于元件自(zi)身(shen)(shen)，所(suo)以只(zhi)能(neng)(neng)通(tong)過(guo)元件技術來(lai)(lai)改(gai)進(jin)。下(xia)面分(fen)析下(xia)影響開(kai)(kai)關(guan)電(dian)(dian)(dian)源模塊效率的主要(yao)(yao)因素有哪些。電(dian)(dian)(dian)源模塊的損(sun)耗(hao)主要(yao)(yao)來(lai)(lai)自(zi)開(kai)(kai)關(guan)元件MOSFET和二(er)極管(guan)，另一(yi)部(bu)分(fen)來(lai)(lai)自(zi)電(dian)(dian)(dian)容(rong)和電(dian)(dian)(dian)感(gan)。MOSFET和二(er)極管(guan)由于自(zi)身(shen)(shen)特(te)性，會(hui)有效降低系(xi)統(tong)效率，可(ke)分(fen)成傳導(dao)損(sun)耗(hao)和開(kai)(kai)關(guan)損(sun)耗(hao)倆部(bu)分(fen)。簡單來(lai)(lai)說，任何電(dian)(dian)(dian)流回(hui)路都存在(zai)(zai)損(sun)耗(hao)電(dian)(dian)(dian)阻，會(hui)造成能(neng)(neng)量損(sun)耗(hao)。MOSFET和二(er)極管(guan)是(shi)開(kai)(kai)關(guan)元件，在(zai)(zai)導(dao)通(tong)電(dian)(dian)(dian)流流過(guo)MOSFET或二(er)極管(guan)時(shi)，會(hui)有導(dao)通(tong)壓降。由于MOSFET只(zhi)有在(zai)(zai)導(dao)通(tong)時(shi)才有電(dian)(dian)(dian)流流過(guo)，所(suo)以MOSFET的傳導(dao)損(sun)耗(hao)與其導(dao)通(tong)電(dian)(dian)(dian)阻、占空比(bi)和導(dao)通(tong)時(shi)的電(dian)(dian)(dian)流有關(guan)。

acdc電(dian)(dian)(dian)(dian)(dian)源模(mo)(mo)(mo)塊(kuai)(kuai)額定功(gong)率(lv):從理論上說，選(xuan)擇模(mo)(mo)(mo)塊(kuai)(kuai)時(shi)，功(gong)率(lv)是(shi)(shi)越(yue)大(da)越(yue)好(hao)，這(zhe)樣就可以保證系(xi)統(tong)更(geng)高要(yao)求的(de)(de)(de)(de)運行。但(dan)越(yue)大(da)的(de)(de)(de)(de)功(gong)率(lv)，體積往往也越(yue)大(da)，成本也會(hui)(hui)大(da)幅的(de)(de)(de)(de)增加(jia)。所以設(she)計在選(xuan)擇電(dian)(dian)(dian)(dian)(dian)源模(mo)(mo)(mo)塊(kuai)(kuai)時(shi)，較好(hao)是(shi)(shi)選(xuan)擇產品(pin)的(de)(de)(de)(de)工作(zuo)功(gong)率(lv)維(wei)持(chi)在所用(yong)電(dian)(dian)(dian)(dian)(dian)源模(mo)(mo)(mo)塊(kuai)(kuai)的(de)(de)(de)(de)30-80%為宜，因為對于(yu)一般模(mo)(mo)(mo)塊(kuai)(kuai)而言，這(zhe)個(ge)(ge)功(gong)率(lv)范圍內，模(mo)(mo)(mo)塊(kuai)(kuai)電(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)各(ge)項性能發揮都比(bi)較穩定可靠，更(geng)有(you)利于(yu)模(mo)(mo)(mo)塊(kuai)(kuai)的(de)(de)(de)(de)長(chang)期運行。選(xuan)擇過大(da)的(de)(de)(de)(de)功(gong)率(lv)產品(pin)，會(hui)(hui)造成浪費；選(xuan)擇剛(gang)剛(gang)好(hao)或過小的(de)(de)(de)(de)功(gong)率(lv)，則(ze)容易引起(qi)負載過重(zhong)，輕者系(xi)統(tong)不穩定，重(zhong)則(ze)會(hui)(hui)燒(shao)毀(hui)元件(jian)。雖然(ran)說目前有(you)一些(xie)電(dian)(dian)(dian)(dian)(dian)源模(mo)(mo)(mo)塊(kuai)(kuai)產品(pin)是(shi)(shi)可以超載使用(yong)的(de)(de)(de)(de)，但(dan)也只能是(shi)(shi)當(dang)應急(ji)之用(yong)，并(bing)不提倡長(chang)期這(zhe)樣使用(yong)。當(dang)然(ran)，這(zhe)個(ge)(ge)要(yao)根(gen)據(ju)不同(tong)的(de)(de)(de)(de)產品(pin)，不同(tong)的(de)(de)(de)(de)要(yao)求而定，可根(gen)據(ju)自己(ji)的(de)(de)(de)(de)產品(pin)特點和需求考慮，選(xuan)擇較適當(dang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源模(mo)(mo)(mo)塊(kuai)(kuai)ACDC模(mo)(mo)(mo)塊(kuai)(kuai)電(dian)(dian)(dian)(dian)(dian)源容量的(de)(de)(de)(de)容量和電(dian)(dian)(dian)(dian)(dian)感是(shi)(shi)成正(zheng)比(bi)的(de)(de)(de)(de)。

AC-DC電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模塊(kuai)的作用(yong)：一(yi)、隔(ge)(ge)離(li)(li)1、安全隔(ge)(ge)離(li)(li)：強(qiang)電(dian)(dian)(dian)弱(ruo)電(dian)(dian)(dian)隔(ge)(ge)離(li)(li)\IGBT隔(ge)(ge)離(li)(li)驅(qu)動(dong)\浪涌隔(ge)(ge)離(li)(li)保(bao)(bao)(bao)護(hu)(hu)(hu)\雷電(dian)(dian)(dian)隔(ge)(ge)離(li)(li)保(bao)(bao)(bao)護(hu)(hu)(hu)（如人體(ti)接(jie)觸的醫(yi)療電(dian)(dian)(dian)子設備的隔(ge)(ge)離(li)(li)保(bao)(bao)(bao)護(hu)(hu)(hu)）。2、噪(zao)聲隔(ge)(ge)離(li)(li)：（模擬電(dian)(dian)(dian)路(lu)與(yu)數(shu)字電(dian)(dian)(dian)路(lu)隔(ge)(ge)離(li)(li)、強(qiang)弱(ruo)信號隔(ge)(ge)離(li)(li)）。3、接(jie)地環路(lu)消除：遠(yuan)程信號傳輸\分布(bu)式(shi)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統。二、保(bao)(bao)(bao)護(hu)(hu)(hu)短路(lu)保(bao)(bao)(bao)護(hu)(hu)(hu)、過(guo)壓(ya)保(bao)(bao)(bao)護(hu)(hu)(hu)、欠壓(ya)保(bao)(bao)(bao)護(hu)(hu)(hu)、過(guo)流(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)、其它保(bao)(bao)(bao)護(hu)(hu)(hu)。三、電(dian)(dian)(dian)壓(ya)變(bian)換(huan)(huan)(huan)升(sheng)壓(ya)變(bian)換(huan)(huan)(huan)\降壓(ya)變(bian)換(huan)(huan)(huan)\交(jiao)(jiao)直流(liu)轉(zhuan)換(huan)(huan)(huan)（AC/DC、DC/AC）\極性變(bian)換(huan)(huan)(huan)（正負(fu)極性轉(zhuan)換(huan)(huan)(huan)、單電(dian)(dian)(dian)源(yuan)(yuan)(yuan)與(yu)正負(fu)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)轉(zhuan)換(huan)(huan)(huan)、單電(dian)(dian)(dian)源(yuan)(yuan)(yuan)與(yu)多電(dian)(dian)(dian)源(yuan)(yuan)(yuan)轉(zhuan)換(huan)(huan)(huan)）。四(si)、穩壓(ya)交(jiao)(jiao)流(liu)市電(dian)(dian)(dian)供(gong)(gong)電(dian)(dian)(dian)\遠(yuan)程直流(liu)供(gong)(gong)電(dian)(dian)(dian)\分布(bu)式(shi)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)供(gong)(gong)電(dian)(dian)(dian)系(xi)(xi)統\電(dian)(dian)(dian)池供(gong)(gong)電(dian)(dian)(dian)一(yi)般模塊(kuai)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)有(you)較小(xiao)負(fu)荷限(xian)制。遼寧ACDC電(dian)(dian)(dian)源(yuan)(yuan)(yuan)模塊(kuai)廠家

ACDC模塊電(dian)源(yuan)(yuan)容(rong)值具有等(deng)效(xiao)的串(chuan)聯模塊電(dian)源(yuan)(yuan)電(dian)阻。遼(liao)寧ACDC電(dian)源(yuan)(yuan)模塊廠家(jia)

電(dian)(dian)解(jie)電(dian)(dian)容(rong)(rong)(rong)(rong)和(he)(he)單(dan)石電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)，它采(cai)(cai)用(yong)硫酸作為絕緣介質(zhi)，可以(yi)使容(rong)(rong)(rong)(rong)量變小(xiao)，并在上(shang)面加上(shang)+符號，一些標(biao)記(ji)符號，一般用(yong)于低頻(pin)交聯和(he)(he)旁路(lu)(lu)濾波，缺點(dian)是(shi)介子損耗大，單(dan)石電(dian)(dian)解(jie)電(dian)(dian)容(rong)(rong)(rong)(rong)大，由于采(cai)(cai)用(yong)特殊材料(liao)(liao)，性能(neng)優于普通電(dian)(dian)解(jie)，頻(pin)率特性較(jiao)好(hao)，但(dan)容(rong)(rong)(rong)(rong)量不能(neng)做得太(tai)多。可用(yong)于精密電(dian)(dian)路(lu)(lu)，如振蕩，或定(ding)時電(dian)(dian)路(lu)(lu)。陶(tao)瓷電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)包(bao)括陶(tao)瓷介電(dian)(dian)電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)、陶(tao)瓷片狀電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)、陶(tao)瓷管(guan)電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)、陶(tao)瓷半可變電(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)。它主要是(shi)非極(ji)性的，介質(zhi)材料(liao)(liao)好(hao)，容(rong)(rong)(rong)(rong)量不能(neng)做得太(tai)多。適用(yong)于高頻(pin)電(dian)(dian)路(lu)(lu)。無論產品(pin)材料(liao)(liao)和(he)(he)生(sheng)產過(guo)程控制有多好(hao)，都有必(bi)要檢(jian)(jian)測老化(hua)。由于電(dian)(dian)子元(yuan)件和(he)(he)變壓器(qi)的輸入檢(jian)(jian)測很難(nan)控制，只有通過(guo)整批(pi)電(dian)(dian)源的老化(hua)和(he)(he)高溫采(cai)(cai)樣，才(cai)能(neng)檢(jian)(jian)測到(dao)這一批(pi)電(dian)(dian)源的質(zhi)量穩(wen)定(ding)性和(he)(he)材料(liao)(liao)是(shi)否存在安(an)全隱患(huan)。之(zhi)后，是(shi)否嚴格(ge)的管(guan)理手段和(he)(he)對進料(liao)(liao)的監(jian)督，之(zhi)后成(cheng)為其動力產品(pin)質(zhi)量能(neng)否得到(dao)保證(zheng)的之(zhi)后保證(zheng)。遼寧ACDC電(dian)(dian)源模塊(kuai)廠家

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