逆(ni)(ni)變(bian)(bian)器(qi)總成逆(ni)(ni)變(bian)(bian)器(qi)作(zuo)用就(jiu)是把直(zhi)流(liu)(liu)(liu)電(dian)(dian)變(bian)(bian)換為(wei)交(jiao)流(liu)(liu)(liu)電(dian)(dian),逆(ni)(ni)變(bian)(bian)器(qi)主流(liu)(liu)(liu)有2種連接方式:
1、直接(jie)連在汽車(che)電(dian)瓶(ping)上,功率較高,可以為更多大功率用電(dian)器使(shi)用,缺點是風險比較大;
2、通過(guo)點煙器(qi)(qi)(qi)電(dian)(dian)源轉(zhuan)換,輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)比(bi)(bi)較小,但(dan)也足夠大(da)多(duo)數(shu)小型電(dian)(dian)器(qi)(qi)(qi)使用(yong)。逆(ni)(ni)(ni)變(bian)器(qi)(qi)(qi)是把(ba)直流(liu)(liu)電(dian)(dian)能(電(dian)(dian)池、蓄(xu)電(dian)(dian)瓶)轉(zhuan)變(bian)成交流(liu)(liu)電(dian)(dian)(一(yi)般為220V,50Hz正弦波),其由(you)逆(ni)(ni)(ni)變(bian)橋、控制(zhi)邏輯和濾波電(dian)(dian)路組成。逆(ni)(ni)(ni)變(bian)器(qi)(qi)(qi)在(zai)工作時(shi)其本身也要(yao)消(xiao)耗一(yi)部分(fen)電(dian)(dian)力(li),因(yin)此輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)要(yao)大(da)于其輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)。逆(ni)(ni)(ni)變(bian)器(qi)(qi)(qi)的效率(lv)(lv)(lv)(lv)(lv)即(ji)是逆(ni)(ni)(ni)變(bian)器(qi)(qi)(qi)輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)與輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)之比(bi)(bi),即(ji)逆(ni)(ni)(ni)變(bian)器(qi)(qi)(qi)效率(lv)(lv)(lv)(lv)(lv)為輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)比(bi)(bi)上輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)(lv)(lv)。
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