逆(ni)變(bian)器(qi)總成逆(ni)變(bian)器(qi)作(zuo)用就是把(ba)直流(liu)電(dian)(dian)變(bian)換為(wei)交流(liu)電(dian)(dian),逆(ni)變(bian)器(qi)主流(liu)有2種連接(jie)方式:
1、直接連(lian)在汽車電(dian)瓶上,功(gong)率較高(gao),可以(yi)為更多(duo)大(da)(da)功(gong)率用電(dian)器使(shi)用,缺點是風險(xian)比較大(da)(da);
2、通過點(dian)煙器(qi)電(dian)源轉換,輸(shu)(shu)出(chu)功(gong)(gong)率(lv)(lv)(lv)比(bi)較小(xiao)(xiao),但(dan)也足夠大(da)多數小(xiao)(xiao)型電(dian)器(qi)使(shi)用。逆(ni)(ni)(ni)變(bian)器(qi)是把直流(liu)電(dian)能(電(dian)池、蓄電(dian)瓶)轉變(bian)成交(jiao)流(liu)電(dian)(一般為220V,50Hz正弦波(bo)(bo)),其(qi)由逆(ni)(ni)(ni)變(bian)橋、控制邏輯和濾波(bo)(bo)電(dian)路組成。逆(ni)(ni)(ni)變(bian)器(qi)在工作時(shi)其(qi)本身(shen)也要消耗一部分電(dian)力(li),因此輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)要大(da)于其(qi)輸(shu)(shu)出(chu)功(gong)(gong)率(lv)(lv)(lv)。逆(ni)(ni)(ni)變(bian)器(qi)的(de)效率(lv)(lv)(lv)即是逆(ni)(ni)(ni)變(bian)器(qi)輸(shu)(shu)出(chu)功(gong)(gong)率(lv)(lv)(lv)與輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)之比(bi),即逆(ni)(ni)(ni)變(bian)器(qi)效率(lv)(lv)(lv)為輸(shu)(shu)出(chu)功(gong)(gong)率(lv)(lv)(lv)比(bi)上輸(shu)(shu)入功(gong)(gong)率(lv)(lv)(lv)。
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