| 摘要 |
<P>PROBLEM TO BE SOLVED: To further reduce power consumption when an electric apparatus is in a non-operating state. <P>SOLUTION: This power supply circuit comprises: a power supply that can output at least two voltages of a first voltage 17 that is applied when the connected load apparatus 10 is in an operating state and a second voltage 18 that is applied when the load apparatus in the non-operating state; a detection part 11 that detects the power consumption of the load apparatus; a determination part 21 that determines whether the load apparatus in the operating state or in the non-operating state based on a power consumption value detected by the detection part; and a voltage control part 15 that outputs the first voltage to the power supply when the determination part determines that the load apparatus is in the operating state, and outputs the second voltage to the power supply when the determination part determines that the load apparatus is in the non-operating state. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
