逆變(bian)器(qi)(qi)總(zong)成逆變(bian)器(qi)(qi)作(zuo)用(yong)就是把直流電變(bian)換為(wei)交流電,逆變(bian)器(qi)(qi)主流有2種連(lian)接方式:
1、直接連在(zai)汽車電瓶上,功率(lv)較高,可以為更(geng)多大功率(lv)用(yong)電器使用(yong),缺點是風(feng)險(xian)比較大;
2、通過點煙(yan)器(qi)電(dian)(dian)(dian)源轉換,輸(shu)(shu)(shu)出功(gong)率(lv)(lv)(lv)(lv)比(bi)較小(xiao),但也足夠大(da)多數小(xiao)型電(dian)(dian)(dian)器(qi)使用(yong)。逆(ni)變(bian)器(qi)是(shi)(shi)把直流電(dian)(dian)(dian)能(neng)(電(dian)(dian)(dian)池(chi)、蓄電(dian)(dian)(dian)瓶)轉變(bian)成交流電(dian)(dian)(dian)(一(yi)(yi)般為220V,50Hz正(zheng)弦波),其(qi)由逆(ni)變(bian)橋(qiao)、控(kong)制邏輯和濾波電(dian)(dian)(dian)路組(zu)成。逆(ni)變(bian)器(qi)在工(gong)作(zuo)時其(qi)本身也要消耗一(yi)(yi)部(bu)分電(dian)(dian)(dian)力,因此輸(shu)(shu)(shu)入(ru)功(gong)率(lv)(lv)(lv)(lv)要大(da)于其(qi)輸(shu)(shu)(shu)出功(gong)率(lv)(lv)(lv)(lv)。逆(ni)變(bian)器(qi)的效(xiao)率(lv)(lv)(lv)(lv)即(ji)是(shi)(shi)逆(ni)變(bian)器(qi)輸(shu)(shu)(shu)出功(gong)率(lv)(lv)(lv)(lv)與輸(shu)(shu)(shu)入(ru)功(gong)率(lv)(lv)(lv)(lv)之比(bi),即(ji)逆(ni)變(bian)器(qi)效(xiao)率(lv)(lv)(lv)(lv)為輸(shu)(shu)(shu)出功(gong)率(lv)(lv)(lv)(lv)比(bi)上輸(shu)(shu)(shu)入(ru)功(gong)率(lv)(lv)(lv)(lv)。
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