Patent ID: 8129938
Filing Date: 2012-03-06
Classification: H02J

Abstract:
1. A multi power supply system ( 100 ) for a portable device ( 200 ), comprising a universal serial bus (USB) output port ( 110 ), a solar power unit ( 130 ) and an auxiliary electric power unit ( 150 ), wherein the universal serial bus (USB) output port ( 110 ) is a power output port for outputting power from the multi power supply system ( 100 ) to the portable device ( 200 ); the multi power supply system ( 100 ) characterized in that: the multi power supply system ( the power transmission unit ( the solar power unit ( the rectifying circuit ( (a) integrating the auxiliary electric power and the solar electric power; (b) stabilizing the power received from the auxiliary electric power and the solar electric power; (c) supplying an output current at a specific output voltage to the universal serial bus (USB) output port ( (d) charging the auxiliary electric power unit (