| 摘要 |
<p>Provided is a power supply apparatus (400) including a power storage (440) for storing power supplied through a bus line (10) connected to the power supply apparatus (400), on which bus line (10) an information signal representing information is superposed over the power. The power supply apparatus (400) also includes a signal blocker (L1) for blocking the information signal from the bus line (10) from draining into another apparatus, a power amount detector (410) for detecting a power amount of the power storage (440), and a switching controller (420) for switching a server mode for supplying the power from the power storage and a client mode for receiving the power from the bus line in dependence upon a detection result from the power amount detector (410).</p> |
