| 摘要 |
<P>PROBLEM TO BE SOLVED: To connect multiple kinds of DC equipment requiring different voltages to a single DC supplying line. <P>SOLUTION: A DC power supply device 101 outputs a plurality of kinds of output voltages in time division manner. A DC outlet 131 is connected to the DC power supply device 101 through a DC supply line Wdc, and DC equipment 102 is detachably connected to the DC outlet 131. The DC outlet 131 includes a voltage detecting part 21 which detects an inter-line voltage of the DC supply line Wdc, a power reception decision part 22 which permits receiving of power during a period while a voltage detected with the voltage detecting part 21 is within a preset power reception voltage range, and an output control part 23 which outputs a DC power received from the DC supply line Wdc through an equipment connection port 131a during a period while the power reception decision part 22 permits receiving of power. <P>COPYRIGHT: (C)2009,JPO&INPIT |
