Invention Grant
- Patent Title: Data storage device with closed loop extended park mode during spin down operation
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Application No.: US17577300Application Date: 2022-01-17
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Publication No.: US11978482B2Publication Date: 2024-05-07
- Inventor: Brian Johnson , Jaesoo Byoun , Gaku Ikedo , Hideaki Ito , Naoyuki Kagami
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Neugeboren O'Dowd PC
- Main IPC: G11B19/20
- IPC: G11B19/20 ; G11B5/55 ; G11B19/22 ; G11B19/26
Abstract:
A data storage device has a closed loop extended park mode during spin down operation. A data storage device comprises a spindle motor configured to rotate one or more disks, and one or more processing devices. The one or more processing devices are configured to determine a value of current that is discharged from the spindle motor over time during a spin down of the spindle motor, and control a braking duty cycle for braking the spindle motor during the spin down such that the value of current discharged from the spindle motor over time does not exceed a selected current limit.
Public/Granted literature
- US20230230616A1 DATA STORAGE DEVICE WITH CLOSED LOOP EXTENDED PARK MODE DURING SPIN DOWN OPERATION Public/Granted day:2023-07-20
Information query
IPC分类:
