逆變器(qi)(qi)總成逆變器(qi)(qi)作用就是(shi)把直流電(dian)變換為交流電(dian),逆變器(qi)(qi)主流有2種連接方式:
1、直接連在汽(qi)車電瓶上(shang),功率較高,可以(yi)為更多大功率用(yong)電器使用(yong),缺(que)點(dian)是風險比較大;
2、通過點煙器(qi)(qi)電(dian)(dian)(dian)源轉換(huan),輸(shu)出功(gong)率(lv)比較小(xiao),但也足夠大多數小(xiao)型(xing)電(dian)(dian)(dian)器(qi)(qi)使(shi)用。逆(ni)(ni)(ni)變(bian)器(qi)(qi)是把直流(liu)(liu)電(dian)(dian)(dian)能(電(dian)(dian)(dian)池、蓄電(dian)(dian)(dian)瓶(ping))轉變(bian)成交流(liu)(liu)電(dian)(dian)(dian)(一般為(wei)220V,50Hz正(zheng)弦波),其由逆(ni)(ni)(ni)變(bian)橋、控制邏輯和濾波電(dian)(dian)(dian)路組成。逆(ni)(ni)(ni)變(bian)器(qi)(qi)在工(gong)作時其本身也要(yao)消耗(hao)一部分電(dian)(dian)(dian)力(li),因此輸(shu)入功(gong)率(lv)要(yao)大于其輸(shu)出功(gong)率(lv)。逆(ni)(ni)(ni)變(bian)器(qi)(qi)的效(xiao)率(lv)即是逆(ni)(ni)(ni)變(bian)器(qi)(qi)輸(shu)出功(gong)率(lv)與輸(shu)入功(gong)率(lv)之比,即逆(ni)(ni)(ni)變(bian)器(qi)(qi)效(xiao)率(lv)為(wei)輸(shu)出功(gong)率(lv)比上(shang)輸(shu)入功(gong)率(lv)。
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