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Data storage device reducing spindle motor voltage boost during power failure

  • US 8,922,940 B1
  • Filed: 05/27/2014
  • Issued: 12/30/2014
  • Est. Priority Date: 05/27/2014
  • Status: Active Grant
First Claim
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1. A data storage device comprising:

  • a head actuated over a disk;

    a spindle motor configured to rotate the disk; and

    control circuitry configured to perform a power fail operation by;

    boosting a power voltage generated based on the spindle motor to generate a boosted voltage;

    controlling an operation of the data storage device using the boosted voltage; and

    when the power voltage falls below a threshold, reducing the boosting so as to reduce the boosted voltage.

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