Data storage device power monitoring

    公开(公告)号:US11340677B2

    公开(公告)日:2022-05-24

    申请号:US16778178

    申请日:2020-01-31

    Abstract: A data storage device includes an electrical connector configured to receive an input voltage to power electronics of the data storage device. The data storage device further includes a fuse electrically coupled between the electrical connector and the electronics. The fuse is configured to output a signal indicative of current being inputted to the data storage device. The data storage device further includes a controller configured to calculate power based on the input voltage and the signal indicative of the current.

    DATA STORAGE DEVICE POWER MONITORING

    公开(公告)号:US20210240243A1

    公开(公告)日:2021-08-05

    申请号:US16778178

    申请日:2020-01-31

    Abstract: A data storage device includes an electrical connector configured to receive an input voltage to power electronics of the data storage device. The data storage device further includes a fuse electrically coupled between the electrical connector and the electronics. The fuse is configured to output a signal indicative of current being inputted to the data storage device. The data storage device further includes a controller configured to calculate power based on the input voltage and the signal indicative of the current.

    MANAGING UNEXPECTED SHUTDOWN IN A DISK DRIVE WITH MULTIPLE ACTUATORS AND CONTROLLERS

    公开(公告)号:US20210004327A1

    公开(公告)日:2021-01-07

    申请号:US16460022

    申请日:2019-07-02

    Abstract: An event that indicates unexpected shutdown of a hard disk drive is determined. The hard disk includes first and second controllers that control respective first and second independently-operable actuators. Each of the actuators has one or more heads that access one or more spinning disks of the hard disk drive. While receiving power for the hard disk drive via back-electromotive force of a motor driven by the one or more spinning disks in response to the event, the first and second controllers independently move the respective first and second actuators to safe positions. In response to determining the first and second actuators are in safe positions, write cache data associated with the first and second controllers is written to a non-volatile memory.

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