发明授权
- 专利标题: Silent retract of heads in a hard disk drive
- 专利标题(中): 在硬盘驱动器中静音收回磁头
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申请号: US12416621申请日: 2009-04-01
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公开(公告)号: US08134805B2公开(公告)日: 2012-03-13
- 发明人: Bong Jin Lee
- 申请人: Bong Jin Lee
- 主分类号: G11B5/54
- IPC分类号: G11B5/54
摘要:
A hard disk drive with an actuator arm assembly that is coupled to a head and includes a voice coil motor. The drive also includes a drive circuit that provides a drive current to the voice coil motor to move the actuator arm assembly into contact with a magnet. The drive circuit limits an amplitude, and/or changes the pulse width, of the drive current as the actuator arm assembly approaches the magnet. Limiting the amplitude and/or changing the pulse widths reduces any audible noise associated with retracting the heads.
公开/授权文献
- US20100254045A1 SILENT RETRACT OF HEADS IN A HARD DISK DRIVE 公开/授权日:2010-10-07
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