| 摘要 |
<p>A power supplying adapter which is connected to an AC power source and generates a predetermined DC voltage is constructed by a power supplying unit in which a small power mode to output a small electric power and a large power mode to output a large electric power can be switched; a current detecting unit for detecting a current outputted from the power supplying unit; a signal receiving unit for receiving a signal transmitted from electronic equipment; and for control means for making the power supplying unit operative in the small power mode and making the signal receiving unit means operative when the current detected by the current detecting unit is equal to or smaller than a reference value. The electronic equipment is constructed by a signal transmitting unit for transmitting a signal to the power supplying adapter; a second control unit for controlling the signal transmitting unit; and a switching unit for switching a power source which is supplied from the power supplying adapter.</p> |
