发明申请
US20090195923A1 Heat assisted spindle motor of a hard disk drive 有权
热辅助主轴电机的硬盘驱动器

Heat assisted spindle motor of a hard disk drive
摘要:
A hard disk drive with a spindle motor that rotates a disk. When the disk drive is exposed to low temperatures a current can be provided to the spindle motor to heat the motor. For example, a DC current can be provided to the spindle motor. The current flowing through the spindle motor coil generates heat. The current can be provided for a predetermined time interval to sufficiently heat the spindle motor so that the fluid bearings of the motor can operate. The current is terminated and then an AC current is provided to the spindle motor to cause motor rotation.
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