逆(ni)變(bian)(bian)器總成逆(ni)變(bian)(bian)器作(zuo)用就是把(ba)直流(liu)電(dian)變(bian)(bian)換為交流(liu)電(dian),逆(ni)變(bian)(bian)器主流(liu)有2種連接方(fang)式:
1、直接連在汽車(che)電(dian)瓶(ping)上(shang),功率(lv)較高,可以為(wei)更多大功率(lv)用電(dian)器使用,缺點(dian)是(shi)風險比較大;
2、通(tong)過點煙(yan)器(qi)電(dian)(dian)源(yuan)轉換(huan),輸(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)比較(jiao)小(xiao),但也(ye)足夠大多數小(xiao)型電(dian)(dian)器(qi)使用。逆(ni)變(bian)(bian)(bian)器(qi)是把直流電(dian)(dian)能(電(dian)(dian)池(chi)、蓄電(dian)(dian)瓶)轉變(bian)(bian)(bian)成交(jiao)流電(dian)(dian)(一(yi)般為(wei)220V,50Hz正(zheng)弦波(bo)),其(qi)由逆(ni)變(bian)(bian)(bian)橋、控(kong)制邏輯和濾波(bo)電(dian)(dian)路(lu)組成。逆(ni)變(bian)(bian)(bian)器(qi)在工作(zuo)時其(qi)本(ben)身(shen)也(ye)要消耗一(yi)部分電(dian)(dian)力,因此輸(shu)入功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)要大于(yu)其(qi)輸(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)。逆(ni)變(bian)(bian)(bian)器(qi)的效率(lv)(lv)(lv)(lv)即是逆(ni)變(bian)(bian)(bian)器(qi)輸(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)與輸(shu)入功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)之比,即逆(ni)變(bian)(bian)(bian)器(qi)效率(lv)(lv)(lv)(lv)為(wei)輸(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)比上(shang)輸(shu)入功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)。
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