Data storage device reducing spindle motor voltage boost during power failure
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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Abstract
A data storage device is disclosed 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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Citations
16 Claims
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1. A data storage device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a data storage device, the method comprising performing a power fail operation by:
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boosting a power voltage generated based on a 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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification