逆變器(qi)總成逆變器(qi)作用就是(shi)把直流電變換為交(jiao)流電,逆變器(qi)主流有2種連(lian)接方式:
1、直接連在汽車電瓶上,功(gong)(gong)率較(jiao)(jiao)高,可(ke)以為更多(duo)大功(gong)(gong)率用(yong)電器使(shi)用(yong),缺點是風險比較(jiao)(jiao)大;
2、通(tong)過點煙器(qi)電(dian)源轉(zhuan)換(huan),輸出(chu)功(gong)(gong)(gong)率(lv)比(bi)較小(xiao),但也足夠大(da)多數小(xiao)型電(dian)器(qi)使(shi)用(yong)。逆(ni)(ni)變(bian)(bian)器(qi)是(shi)把(ba)直(zhi)流(liu)電(dian)能(電(dian)池、蓄電(dian)瓶)轉(zhuan)變(bian)(bian)成(cheng)交流(liu)電(dian)(一(yi)般為220V,50Hz正弦波(bo)),其由逆(ni)(ni)變(bian)(bian)橋(qiao)、控制邏輯(ji)和(he)濾波(bo)電(dian)路組(zu)成(cheng)。逆(ni)(ni)變(bian)(bian)器(qi)在(zai)工作時其本身也要(yao)消(xiao)耗(hao)一(yi)部分電(dian)力,因此輸入功(gong)(gong)(gong)率(lv)要(yao)大(da)于其輸出(chu)功(gong)(gong)(gong)率(lv)。逆(ni)(ni)變(bian)(bian)器(qi)的效率(lv)即是(shi)逆(ni)(ni)變(bian)(bian)器(qi)輸出(chu)功(gong)(gong)(gong)率(lv)與輸入功(gong)(gong)(gong)率(lv)之比(bi),即逆(ni)(ni)變(bian)(bian)器(qi)效率(lv)為輸出(chu)功(gong)(gong)(gong)率(lv)比(bi)上輸入功(gong)(gong)(gong)率(lv)。
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