逆(ni)變器(qi)總(zong)成(cheng)逆(ni)變器(qi)作用就是把直(zhi)流電變換(huan)為(wei)交流電,逆(ni)變器(qi)主流有2種連接方式:
1、直(zhi)接連在(zai)汽車電(dian)(dian)瓶上,功(gong)率(lv)較高,可以為更多大(da)功(gong)率(lv)用(yong)電(dian)(dian)器使用(yong),缺點(dian)是風險比較大(da);
2、通(tong)過點煙器(qi)電(dian)(dian)(dian)源(yuan)轉(zhuan)(zhuan)換,輸(shu)(shu)(shu)出功(gong)(gong)率(lv)(lv)比(bi)較小(xiao),但也足夠(gou)大多數小(xiao)型(xing)電(dian)(dian)(dian)器(qi)使用。逆(ni)(ni)變(bian)器(qi)是(shi)把(ba)直流(liu)(liu)電(dian)(dian)(dian)能(電(dian)(dian)(dian)池、蓄電(dian)(dian)(dian)瓶)轉(zhuan)(zhuan)變(bian)成(cheng)交流(liu)(liu)電(dian)(dian)(dian)(一般為220V,50Hz正弦波),其(qi)由逆(ni)(ni)變(bian)橋、控制(zhi)邏輯和濾(lv)波電(dian)(dian)(dian)路組(zu)成(cheng)。逆(ni)(ni)變(bian)器(qi)在工作時其(qi)本身也要(yao)消(xiao)耗一部分電(dian)(dian)(dian)力,因此(ci)輸(shu)(shu)(shu)入功(gong)(gong)率(lv)(lv)要(yao)大于其(qi)輸(shu)(shu)(shu)出功(gong)(gong)率(lv)(lv)。逆(ni)(ni)變(bian)器(qi)的效率(lv)(lv)即是(shi)逆(ni)(ni)變(bian)器(qi)輸(shu)(shu)(shu)出功(gong)(gong)率(lv)(lv)與輸(shu)(shu)(shu)入功(gong)(gong)率(lv)(lv)之比(bi),即逆(ni)(ni)變(bian)器(qi)效率(lv)(lv)為輸(shu)(shu)(shu)出功(gong)(gong)率(lv)(lv)比(bi)上輸(shu)(shu)(shu)入功(gong)(gong)率(lv)(lv)。
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