Data storage device employing spindle motor driving profile during seek to improve power performance
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United States of America Patent
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Aug 23, 2016
Grant Date -
N/A
app pub date -
Jun 15, 2015
filing date -
May 12, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A data storage device is disclosed comprising a spindle motor configured to rotate a disk, wherein the spindle motor comprises a plurality of windings, and a head actuated over the disk. The windings of the spindle motor are commutated based on a commutation sequence while applying a periodic driving voltage to each winding. During a seek operation to seek the head a seek length, an amplitude of the periodic driving voltage is adjusted according to a driving profile corresponding to the seek length, wherein the driving profile compensates for a power disturbance during the seek operation.
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