逆(ni)(ni)變器總成逆(ni)(ni)變器作(zuo)用就(jiu)是(shi)把(ba)直(zhi)流(liu)電變換(huan)為交(jiao)流(liu)電,逆(ni)(ni)變器主流(liu)有2種連接(jie)方(fang)式:
1、直接(jie)連在汽車(che)電瓶上,功率較(jiao)(jiao)高,可以為(wei)更(geng)多大功率用(yong)電器使用(yong),缺點是風險比較(jiao)(jiao)大;
2、通過(guo)點煙器電(dian)(dian)(dian)源(yuan)轉換,輸出(chu)功(gong)(gong)率(lv)(lv)(lv)(lv)比較(jiao)小,但(dan)也(ye)足夠大(da)多數小型(xing)電(dian)(dian)(dian)器使(shi)用。逆(ni)變(bian)(bian)器是(shi)把直流(liu)電(dian)(dian)(dian)能(電(dian)(dian)(dian)池、蓄(xu)電(dian)(dian)(dian)瓶)轉變(bian)(bian)成(cheng)交流(liu)電(dian)(dian)(dian)(一般(ban)為220V,50Hz正弦波),其由逆(ni)變(bian)(bian)橋、控制(zhi)邏輯和濾波電(dian)(dian)(dian)路組成(cheng)。逆(ni)變(bian)(bian)器在工作(zuo)時其本身(shen)也(ye)要消耗(hao)一部(bu)分電(dian)(dian)(dian)力,因此輸入功(gong)(gong)率(lv)(lv)(lv)(lv)要大(da)于(yu)其輸出(chu)功(gong)(gong)率(lv)(lv)(lv)(lv)。逆(ni)變(bian)(bian)器的效(xiao)率(lv)(lv)(lv)(lv)即(ji)是(shi)逆(ni)變(bian)(bian)器輸出(chu)功(gong)(gong)率(lv)(lv)(lv)(lv)與(yu)輸入功(gong)(gong)率(lv)(lv)(lv)(lv)之比,即(ji)逆(ni)變(bian)(bian)器效(xiao)率(lv)(lv)(lv)(lv)為輸出(chu)功(gong)(gong)率(lv)(lv)(lv)(lv)比上輸入功(gong)(gong)率(lv)(lv)(lv)(lv)。
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