| 摘要 |
An apparatus for parking a read/write head during power interruptions and methods of operating the same result in a hard disk drive apparatus that reduces the time to steady state the operating hard disk drive. The apparatus for reducing the time to steady state the operating disk drive having an actuator arm coupled to a voice coil for latching the actuator arm when power is interrupted comprises a Y-winding spindle motor having a first winding, a second winding, and a third-winding, and a spindle motor controller coupled to the Y-winding spindle motor configured to dynamically short the first winding and the second windings to produce a retarding force against the Y-winding motor and to direct power produced by the third winding in series with the first two windings in parallel to the voice coil for moving the actuator arm to a latched position and to maintain sufficient power to the spindle motor to provide greater operating range (headroom).
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