| 摘要 |
<p>PROBLEM TO BE SOLVED: To input the power source of a slave device earlier than a master side device by supplying and stopping the power of the slave side AC output based on the detected results of a detecting means. SOLUTION: This device is constituted of a master side AC outlet 107, a detecting part 101, a threshold value correcting part 102, a threshold value setting part 103, a plurality of slave side outlets 108, 109, relay parts 104, 105 whose on-off control is conducted by a detected signal from the detecting part 101 and a power plug 112. Power is supplied from the master side receptacle 107 when the power source of a master device is turned on. The detecting part 101 turns on both the relay parts 104, 105 to conduct power source supply to the slave side receptacles 108, 109, detecting that the master device is turned on from a change in current, and in case it is not turned on, a threshold value is adjusted so as it may turn on by the threshold value setting part 103. It is thus possible to input the power source of the slave side device earlier than the master device.</p> |
