Patent ID: 8055917
Filing Date: 2011-11-08
Classification: G06F,H02J

Abstract:
1. A computer comprising: a system unit which has a plurality of electronic components; a battery unit which supplies an auxiliary electric power to the system unit; an adapter which receives a first alternating current (AC) electric power and outputs a second AC electric power; a rectifying unit which rectifies the second AC electric power and supplies a direct current (DC) electric power having a level higher than a minimum electric power level required to operate the system unit and lower than a charging electric power level required to charge the battery unit, to the system unit; a battery charging unit which charges the battery unit; and an electric power amplifying unit which amplifies the DC electric power that branches off from a point of an electric power supplying path between the rectifying unit and the system unit, and supplies a charging electric power to the battery charging unit, wherein the level of the second AC electric power outputted by the adapter is lowered by a predetermined ratio.