逆變器總成逆變器作用(yong)就(jiu)是把直流電變換為交(jiao)流電,逆變器主流有2種連接(jie)方式:
1、直(zhi)接(jie)連在(zai)汽車(che)電瓶上,功率較高,可以為(wei)更多大(da)功率用電器使用,缺點(dian)是風險比較大(da);
2、通(tong)過點煙器(qi)(qi)電(dian)(dian)(dian)源轉換,輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)比較(jiao)小(xiao),但也(ye)足(zu)夠大(da)多數小(xiao)型電(dian)(dian)(dian)器(qi)(qi)使用。逆(ni)(ni)變(bian)器(qi)(qi)是把直流電(dian)(dian)(dian)能(電(dian)(dian)(dian)池(chi)、蓄(xu)電(dian)(dian)(dian)瓶)轉變(bian)成(cheng)交流電(dian)(dian)(dian)(一般為220V,50Hz正弦波),其由逆(ni)(ni)變(bian)橋、控制邏輯(ji)和(he)濾波電(dian)(dian)(dian)路組(zu)成(cheng)。逆(ni)(ni)變(bian)器(qi)(qi)在工作(zuo)時(shi)其本身也(ye)要消(xiao)耗一部分(fen)電(dian)(dian)(dian)力,因此輸(shu)(shu)入(ru)功(gong)(gong)率(lv)(lv)(lv)要大(da)于其輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)。逆(ni)(ni)變(bian)器(qi)(qi)的效率(lv)(lv)(lv)即是逆(ni)(ni)變(bian)器(qi)(qi)輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)與輸(shu)(shu)入(ru)功(gong)(gong)率(lv)(lv)(lv)之(zhi)比,即逆(ni)(ni)變(bian)器(qi)(qi)效率(lv)(lv)(lv)為輸(shu)(shu)出功(gong)(gong)率(lv)(lv)(lv)比上輸(shu)(shu)入(ru)功(gong)(gong)率(lv)(lv)(lv)。
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