逆(ni)變器總成逆(ni)變器作用就是把直流(liu)(liu)電變換為交(jiao)流(liu)(liu)電,逆(ni)變器主流(liu)(liu)有(you)2種連接(jie)方式:
1、直(zhi)接連(lian)在汽(qi)車電瓶上,功(gong)率較高(gao),可以為更多大(da)功(gong)率用(yong)(yong)電器使(shi)用(yong)(yong),缺點是風險比較大(da);
2、通過點煙器(qi)電(dian)(dian)(dian)(dian)源(yuan)轉換,輸(shu)出(chu)(chu)功(gong)率比較小(xiao),但也足夠大(da)(da)多數小(xiao)型電(dian)(dian)(dian)(dian)器(qi)使用。逆(ni)變器(qi)是(shi)(shi)把(ba)直流(liu)電(dian)(dian)(dian)(dian)能(電(dian)(dian)(dian)(dian)池、蓄(xu)電(dian)(dian)(dian)(dian)瓶)轉變成(cheng)(cheng)交(jiao)流(liu)電(dian)(dian)(dian)(dian)(一般為(wei)220V,50Hz正弦(xian)波),其由(you)逆(ni)變橋、控制邏輯和(he)濾波電(dian)(dian)(dian)(dian)路(lu)組成(cheng)(cheng)。逆(ni)變器(qi)在工作(zuo)時其本身也要消(xiao)耗(hao)一部(bu)分(fen)電(dian)(dian)(dian)(dian)力(li),因此輸(shu)入功(gong)率要大(da)(da)于其輸(shu)出(chu)(chu)功(gong)率。逆(ni)變器(qi)的效率即是(shi)(shi)逆(ni)變器(qi)輸(shu)出(chu)(chu)功(gong)率與輸(shu)入功(gong)率之比,即逆(ni)變器(qi)效率為(wei)輸(shu)出(chu)(chu)功(gong)率比上輸(shu)入功(gong)率。
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