逆變器總(zong)成逆變器作用(yong)就(jiu)是(shi)把(ba)直流電變換為交(jiao)流電,逆變器主(zhu)流有2種(zhong)連接(jie)方式:
1、直接連在(zai)汽車電瓶上,功率較高(gao),可以為更多(duo)大功率用(yong)(yong)電器使(shi)用(yong)(yong),缺點是風險比較大;
2、通過點煙器(qi)(qi)(qi)電(dian)(dian)源轉(zhuan)換,輸出(chu)功(gong)(gong)率(lv)(lv)比較小,但也(ye)足夠大多數小型電(dian)(dian)器(qi)(qi)(qi)使(shi)用。逆(ni)變(bian)(bian)器(qi)(qi)(qi)是(shi)把直(zhi)流(liu)電(dian)(dian)能(電(dian)(dian)池、蓄電(dian)(dian)瓶)轉(zhuan)變(bian)(bian)成交流(liu)電(dian)(dian)(一般為220V,50Hz正弦波(bo)(bo)),其由逆(ni)變(bian)(bian)橋、控制邏輯和濾波(bo)(bo)電(dian)(dian)路組成。逆(ni)變(bian)(bian)器(qi)(qi)(qi)在(zai)工作(zuo)時其本身也(ye)要消耗一部分電(dian)(dian)力,因此輸入(ru)功(gong)(gong)率(lv)(lv)要大于其輸出(chu)功(gong)(gong)率(lv)(lv)。逆(ni)變(bian)(bian)器(qi)(qi)(qi)的(de)效(xiao)率(lv)(lv)即(ji)是(shi)逆(ni)變(bian)(bian)器(qi)(qi)(qi)輸出(chu)功(gong)(gong)率(lv)(lv)與輸入(ru)功(gong)(gong)率(lv)(lv)之(zhi)比,即(ji)逆(ni)變(bian)(bian)器(qi)(qi)(qi)效(xiao)率(lv)(lv)為輸出(chu)功(gong)(gong)率(lv)(lv)比上輸入(ru)功(gong)(gong)率(lv)(lv)。
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