发明名称 Disk drive adjusting gain of spindle motor compensator based on a ratio of spin speeds
摘要 A disk drive is disclosed comprising a head actuated over a disk, a spindle motor for rotating the disk, and a spindle motor control system comprising a servo compensator operable to generate a control signal applied to the spindle motor, the servo compensator comprising a programmable gain term (PGT). The disk is spun at a first speed RPM—1 using a first value PGT—1 selected for the PGT, and the disk is spun at a second speed RPM—2 using a second value PGT—2 selected for the PGT, wherein the second value PGT—2 is generated in response to the first value PGT—1 scaled by a function of a ratio of RPM—2 to RPM—1.
申请公布号 US8737008(B1) 申请公布日期 2014.05.27
申请号 US201113106710 申请日期 2011.05.12
申请人 WATANABE TAYLOR;YANG WENLI;DESAI ASHOK K.;STOLL WILLIAM T.;YU ANGEL;WESTERN DIGITAL TECHNOLOGIES, INC. 发明人 WATANABE TAYLOR;YANG WENLI;DESAI ASHOK K.;STOLL WILLIAM T.;YU ANGEL
分类号 G11B15/46 主分类号 G11B15/46
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