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1. 发明授权

US07283321B1 Disk drives and methods allowing for dual stage actuator adaptive seek control and microactuator gain calibration 有权
标题翻译：磁盘驱动器和方法允许双级执行器自适应寻道控制和微型致动器增益校准
公开(公告)号：US07283321B1
公开(公告)日：2007-10-16
申请号：US11197572
申请日：2005-08-04
申请人： Yu Sun , Yunfeng Li , Lin Guo , Paul Yeagle
发明人： Yu Sun , Yunfeng Li , Lin Guo , Paul Yeagle
IPC分类号： G11B5/596
CPC分类号： G11B5/5552
摘要： A disk drive includes a disk, a head, a coarse actuator, a microactuator, and a servo controller. The microactuator positions the head relative to the disk. The coarse actuator positions the microactuator and the head relative to the disk. The servo controller controls the microactuator in accordance with a microactuator feedforward control signal that is provided by the servo controller based on a plurality of microactuator feedforward values. The servo controller tunes at least one microactuator feedforward value of the plurality of microactuator feedforward values. The servo controller scales the microactuator feedforward control signal in accordance with a microactuator feedforward gain, and the servo controller adjusts the microactuator feedforward gain based on a position error signal that is determined during a seek operation.
摘要翻译：磁盘驱动器包括盘，头，粗致动器，微致动器和伺服控制器。微型致动器将磁头相对于磁盘定位。粗执行器将微致动器和头相对于盘定位。伺服控制器根据由伺服控制器基于多个微致动器前馈值提供的微致动器前馈控制信号来控制微致动器。伺服控制器调谐多个微致动器前馈值的至少一个微致动器前馈值。伺服控制器根据微致动器前馈增益来缩放微致动器前馈控制信号，并且伺服控制器基于在寻道操作期间确定的位置误差信号来调节微致动器前馈增益。

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