| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power consumption control device and method for controlling a clock frequency of an electric apparatus having a CPU variable in clock frequency according to AC power supply frequency reduction in response to tightness for power demand and thereby reducing power demand to reduce total power demand. <P>SOLUTION: The power consumption control device includes an AC power supply 10, an electric apparatus 11, an AC frequency measurement section 12 of the electric apparatus 11, a clock frequency control section 13 of the electric apparatus 11, a clock section 14 of the electric apparatus 11, and a CPU section 15 of the electric apparatus 11. An AC power supply frequency input from the AC power supply 10 is measured in the AC frequency measurement section 12, and the measured value is passed over to the clock frequency control section 13. In the clock frequency control section 13, a clock frequency of the clock section 14 is reduced, for example, when the AC power supply frequency comes to be 49.8 Hz or less, and, thereafter, the clock frequency is returned to the previous level when the AC power supply frequency exceeds 49.9 Hz. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
