| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a peripheral device requiring no time and effort for power switch on/off, reducing unnecessary power consumption and causing no misapprehension on the condition for supply of power supply electricity. <P>SOLUTION: An electric power control circuit allows a power supply electricity supplying part to be conductive to a load part regardless of existence or height of a second power supply signal sent out from a power supply line when a first power supply signal sent out from the power supply electricity supplying part shifts from LOW to HIGH. The electric power control circuit keeps intermittent connection of the power supply electricity supplying part and the load part according to existence or height of the second power supply signal as long as the first power supply signal is maintained at HIGH. <P>COPYRIGHT: (C)2004,JPO</p> |
