HARD DISK DRIVE, METHOD FOR PARKING MAGNETIC HEAD OF HARD DISK DRIVE, AND RECORDING MEDIUM IN WHICH COMPUTER PROGRAM FOR PARKING MAGNETIC HEAD OF HARD DISK DRIVE IS RECORDED

摘要

PROBLEM TO BE SOLVED: To park a magnetic head by decreasing the number of capacitors connected to a voice coil of a voice coil motor without utilizing counter electromotive force of a spindle motor.;SOLUTION: The hard disk drive comprises a voice coil motor driving portion 10 supplying a drive current to the voice coil motor 170 and a controller 20 controlling the voice coil motor driving portion 170 so that supply voltage supplied to the prescribed chips attached to a printed circuit board is compared with parking reference voltage previously set as voltage being higher than power-on reset voltage, when the supply voltage is lower than the parking voltage, a current for parking the magnetic head 120 to the prescribed parking region 111 is applied to a voice coil 173 of the voice coil motor 170 through the voice coil motor drive portion 10.;COPYRIGHT: (C)2007,JPO&INPIT