逆變(bian)器(qi)(qi)總成逆變(bian)器(qi)(qi)作用就是把直流(liu)電(dian)變(bian)換為交流(liu)電(dian),逆變(bian)器(qi)(qi)主(zhu)流(liu)有2種連(lian)接方式:
1、直接(jie)連(lian)在(zai)汽車(che)電瓶上(shang),功率較高(gao),可以為更多大(da)功率用電器使用,缺點是風險比較大(da);
2、通過點(dian)煙器(qi)(qi)電源轉換(huan),輸(shu)(shu)出功(gong)率(lv)比較小,但(dan)也足夠大多數小型電器(qi)(qi)使(shi)用。逆變(bian)(bian)器(qi)(qi)是(shi)(shi)把直流電能(電池(chi)、蓄電瓶)轉變(bian)(bian)成交流電(一般為220V,50Hz正(zheng)弦(xian)波),其由逆變(bian)(bian)橋、控制邏輯和濾波電路組成。逆變(bian)(bian)器(qi)(qi)在工(gong)作時其本身(shen)也要(yao)消耗一部(bu)分(fen)電力,因此輸(shu)(shu)入(ru)功(gong)率(lv)要(yao)大于其輸(shu)(shu)出功(gong)率(lv)。逆變(bian)(bian)器(qi)(qi)的效(xiao)率(lv)即是(shi)(shi)逆變(bian)(bian)器(qi)(qi)輸(shu)(shu)出功(gong)率(lv)與輸(shu)(shu)入(ru)功(gong)率(lv)之比,即逆變(bian)(bian)器(qi)(qi)效(xiao)率(lv)為輸(shu)(shu)出功(gong)率(lv)比上(shang)輸(shu)(shu)入(ru)功(gong)率(lv)。
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