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1.发明授权Method and apparatus to prevent servo instability due to coupling between voice coil motor and feedforward sensor 有权防止由于音圈电机和前馈传感器之间的耦合引起的伺服不稳定的方法和装置公开(公告)号：US09460744B1
公开(公告)日：2016-10-04
申请号：US14747413
申请日：2015-06-23
Applicant: Seagate Technology LLC
Inventor： Stephen Matthew Gaub , Lou Supino
CPC classification number: G11B5/59694 , G11B5/556 , G11B5/5582
Abstract: A voice coil motor control signal is detected being coupled into a vibration sensor of a hard disk drive. The vibration sensor is used to provide a feedforward signal to a servo control system of the hard disk drive. In response to detecting the coupling, the feedforward signal is modified to prevent instability of the servo control system.
Abstract translation: 检测到音圈电机控制信号被耦合到硬盘驱动器的振动传感器中。 振动传感器用于向硬盘驱动器的伺服控制系统提供前馈信号。 响应于检测到耦合，前馈信号被修改以防止伺服控制系统的不稳定性。
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