| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply for performing superior system drive, even if the fuel cell with an insufficient output, in place of an AC adaptor, is connected to an outer power-supply input terminal. <P>SOLUTION: The power supply has a secondary battery pack and both a fuel cell, an AC adaptor can be connected to the power supply, and the power supply has the function of controlling a battery pack cutting switch and a charging power cutting switch so that the secondary battery pack is controlled to be charged or discharged, by determining whether the type of device connected to an outer connection terminal is a fuel cell or an AC adaptor. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
