公开(公告)号：US20070064334A1

公开(公告)日：2007-03-22

申请号：US11230168

申请日：2005-09-19

申请人： QingWei Jia ,  MingZhong Ding ,  KianKeong Ooi ,  Jianyi Wang

发明人： QingWei Jia ,  MingZhong Ding ,  KianKeong Ooi ,  Jianyi Wang

IPC分类号： G11B5/596

CPC分类号： G11B5/59605 ,  G11B5/5582

摘要： A data storage device adapted to compensate for physical disturbances has a storage medium, a read-write mechanism positionable relative to the storage medium, and a disturbance observer. The read-write mechanism is adapted to read and write data. The disturbance observer compensates a position of the read-write mechanism according to low-frequency components of physical disturbances.

摘要翻译： 适于补偿物理干扰的数据存储装置具有存储介质，相对于存储介质定位的读写机构和干扰观察器。 读写机制适用于读写数据。 干扰观测器根据物理扰动的低频分量补偿读写机构的位置。

公开(公告)号：US20070013337A1

公开(公告)日：2007-01-18

申请号：US11170332

申请日：2005-06-29

申请人： KeXiu Liu ,  MingZhong Ding ,  KianKeong Ooi ,  QingWei Jia

发明人： KeXiu Liu ,  MingZhong Ding ,  KianKeong Ooi ,  QingWei Jia

IPC分类号： G05B5/01

CPC分类号： G11B5/59622 ,  G11B5/5526

摘要： A voltage-mode VCM controller is provided comprising an Infinite Impulse Response (IIR) filter that modifies a servo control voltage signal to a voltage driver in response to an adaptive compensator that configures the IIR filter in relation to an observed VCM velocity and an actual VCM velocity. An associated method is provided comprising modeling a velocity response of a VCM to a voltage input; inputting the observed velocity and an actual VCM velocity to an adaptive compensator that computes a gain and a VCM response pole frequency in relation to the VCM resistance and inductance; configuring an IIR filter in relation to the computed gain and pole frequency values; and using the IIR filter to modify a voltage command from a servo controller to a power driver.

摘要翻译： 提供了一种电压模式VCM控制器，其包括无限脉冲响应（IIR）滤波器，其响应于相对于观察到的VCM速度和实际VCM配置IIR滤波器的自适应补偿器，将伺服控制电压信号修改为电压驱动器 速度。 提供了一种相关联的方法，包括将VCM的速度响应建模成电压输入; 将观测速度和实际VCM速度输入到相对于VCM电阻和电感计算增益和VCM响应极点频率的自适应补偿器; 配置相对于计算出的增益和极点频率值的IIR滤波器; 并使用IIR滤波器修改从伺服控制器到功率驱动器的电压指令。

公开(公告)号：US07199964B2

公开(公告)日：2007-04-03

申请号：US11170332

申请日：2005-06-29

申请人： KeXiu Liu ,  MingZhong Ding ,  KianKeong Ooi ,  QingWei Jia

发明人： KeXiu Liu ,  MingZhong Ding ,  KianKeong Ooi ,  QingWei Jia

IPC分类号： G11B21/02

CPC分类号： G11B5/59622 ,  G11B5/5526

摘要： A voltage-mode VCM controller is provided comprising an Infinite Impulse Response (IIR) filter that modifies a servo control voltage signal to a voltage driver in response to an adaptive compensator that configures the IIR filter in relation to an observed VCM velocity and an actual VCM velocity. An associated method is provided comprising modeling a velocity response of a VCM to a voltage input; inputting the observed velocity and an actual VCM velocity to an adaptive compensator that computes a gain and a VCM response pole frequency in relation to the VCM resistance and inductance; configuring an IIR filter in relation to the computed gain and pole frequency values; and using the IIR filter to modify a voltage command from a servo controller to a power driver.

公开(公告)号：US09052701B1

公开(公告)日：2015-06-09

申请号：US13585679

申请日：2012-08-14

申请人： Qingwei Jia ,  Shuyu Cao ,  Guoxiao Guo ,  Jie Yu

发明人： Qingwei Jia ,  Shuyu Cao ,  Guoxiao Guo ,  Jie Yu

IPC分类号： G05B5/01

CPC分类号： G05B5/01 ,  G11B5/59611 ,  G11B5/59622 ,  H02P25/034

摘要： A disk drive is disclosed comprising a disk comprising a plurality of servo tracks defined by servo sectors recorded around the circumference of the disk at a servo sampling frequency, and a servo control system operable to actuate a head over the disk by generating a control signal applied to an actuator. A first sinusoid is injected into the servo control system and a first DC component (dc1) is measured in the control signal. A second sinusoid is injected into the servo control system and a second DC component (dc2) is measured in the control signal, wherein the second sinusoid comprises a phase offset from the first sinusoid. A resonance mode of the servo control system is measured based on dc1 and dc2.

摘要翻译： 公开了一种磁盘驱动器，其包括盘，该盘包括以伺服采样频率记录在盘周围的伺服扇区所限定的多个伺服轨迹;以及伺服控制系统，可操作以通过产生施加的控制信号来驱动磁盘上的磁头 到致动器。 在伺服控制系统中注入第一个正弦曲线，并在控制信号中测量第一个直流分量（dc1）。 将第二正弦波注入到伺服控制系统中，并且在控制信号中测量第二直流分量（dc2），其中第二正弦波包括与第一正弦波相位偏移。 基于dc1和dc2测量伺服控制系统的谐振模式。

公开(公告)号：US07319570B2

公开(公告)日：2008-01-15

申请号：US11230168

申请日：2005-09-19

申请人： QingWei Jia ,  MingZhong Ding ,  KianKeong Ooi ,  Jianyi Wang

发明人： QingWei Jia ,  MingZhong Ding ,  KianKeong Ooi ,  Jianyi Wang

IPC分类号： G11B5/596

CPC分类号： G11B5/59605 ,  G11B5/5582

摘要： A data storage device adapted to compensate for physical disturbances has a storage medium, a read-write mechanism positionable relative to the storage medium, and a disturbance observer. The read-write mechanism is adapted to read and write data. The disturbance observer compensates a position of the read-write mechanism according to low-frequency components of physical disturbances.

摘要翻译： 适于补偿物理干扰的数据存储装置具有存储介质，相对于存储介质定位的读写机构和干扰观察器。 读写机制适用于读写数据。 干扰观测器根据物理扰动的低频分量补偿读写机构的位置。