| 摘要 |
<p>PURPOSE:To reduce a power consumption by providing a power generating means at a hard disk driving part, and using the stored power at the time of the maximum load operation just like a motor part is activated. CONSTITUTION:The power obtained by converting the rotation energy of a motor 2-2 which rotates as a generator when the motor is stopped is stored through a charging circuit 4-2 in a large capacitor 4-3. At the time of operating a clutch 2-1, connecting a hard disk 1 with the motor 2-2, and activating the hard disk 1 in order to perform an access to the hard disk 1, a power source control part 5-1 turns on a switch 7 so that a power supply circuit can be connected with the motor 2-2, and a power source can be supplied. And also, the power source control part 5-1 operates a power source stabilizing circuit 4-1 so that the discharged currents of the large capacitor 4-3 can be supplied to the power supply circuit of the motor 2-2. Thus, at the time of activating the motor 2-2, the power of the large capacitor 4-3 can be used in addition to the power from the power supply circuit.</p> |
