Data storage device regulating BEMF power voltage during power failure

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United States of America Patent

PATENT NO 10242698
SERIAL NO

15956990

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Abstract

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A data storage device is disclosed comprising a head actuated over a disk, and a spindle motor configured to rotate the disk, wherein the spindle motor comprises a plurality of windings. During a power failure the head is unloaded by generating a periodic signal, shorting the windings of the spindle motor based on the periodic signal in order to generate a power voltage, and adjusting the periodic signal based on an amplitude of the power voltage.

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Patent Owner(s)

Patent OwnerAddress
WESTERN DIGITAL TECHNOLOGIES INC5601 GREAT OAKS PARKWAY SAN JOSE CA 95119

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byoun, Jaesoo Irvine, US 34 76
Ferris, Timothy A Mission Viejo, US 41 1902
Johnson, Brian A Laguna Hills, US 19 1285

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