| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To more effectively use power by considering residual amounts of a plurality of batteries. <P>SOLUTION: Equipment includes: a plurality of batteries 10A and 10B being power supplies; loads 20A to 20C operating by power which the batteries 10A and 10B supply; switches SW1A to SW1C and SW2A to SW2C changing over a supply route of power from the batteries 10A and 10B to the loads 20A to 20C; voltage residual amount detecting circuits 11A and 11B detecting the respective residual amounts of the batteries 10A and 10B; and a control circuit 30 selecting combination of the batteries 10A and 10B supplying power to the loads 20A to 20C in accordance with the respective residual amounts of the batteries 10A and 10B, which the voltage residual amount detecting circuits 11A and 11B detect, and a size of the loads 20A to 20C, changing over the switches SW1A to SW1C and SW2A to SW2C in accordance with a selection result, and supplying power to the loads 20A to 20C from the batteries 10A and 10B. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
