后備電(dian)(dian)源是一(yi)種(zhong)有(you)效防止驅動電(dian)(dian)路(lu)無正(zheng)(zheng)常電(dian)(dian)壓時的(de)一(yi)種(zhong)自(zi)動驅動的(de)準行(xing)電(dian)(dian)源，可以延長電(dian)(dian)路(lu)需要的(de)電(dian)(dian)壓，以提供電(dian)(dian)路(lu)能夠正(zheng)(zheng)常工(gong)作。小巧身材在(zai)個人電(dian)(dian)腦配(pei)置和峰(feng)值功耗不斷升級的(de)背景(jing)下
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