METHOD OF REDUCING ABRASION OF DISK BY USING DITHERING PROCESS AND DISK DRIVE USING THE SAME
    1.
    发明申请
    METHOD OF REDUCING ABRASION OF DISK BY USING DITHERING PROCESS AND DISK DRIVE USING THE SAME 失效
    通过使用抖动过程减少磁盘磨损和使用磁盘驱动器的方法

    公开(公告)号:US20080225429A1

    公开(公告)日:2008-09-18

    申请号:US12044173

    申请日:2008-03-07

    IPC分类号: G11B21/02

    CPC分类号: G11B5/54 G11B21/12

    摘要: Embodiments of the invention reduce abrasion of a disk via a dithering process that spreads a friction area between a magnetic head and the disk when a magnetic head lifts from the surface of the disk. In embodiments of the invention, the dithering process is executed only when the magnetic head is latched in a parking zone of the disk and when a disk spindle motor is in an acceleration mode.

    摘要翻译: 本发明的实施例通过抖动过程减少磁盘的磨损,当磁头从磁盘表面升起时,该抖动过程在磁头和磁盘之间扩展摩擦区域。 在本发明的实施例中,仅当磁头锁定在盘的停放区域中以及当盘主轴电机处于加速模式时才执行抖动处理。

    Apparatus and method compensating recurring false speed errors in DC motor and disk drive adopting same
    2.
    发明申请
    Apparatus and method compensating recurring false speed errors in DC motor and disk drive adopting same 失效
    用于补偿直流电机和磁盘驱动器中循环误差的装置和方法

    公开(公告)号:US20070160352A1

    公开(公告)日:2007-07-12

    申请号:US11650419

    申请日:2007-01-08

    IPC分类号: H02P7/06

    CPC分类号: G11B19/28

    摘要: Provided are an apparatus and method of controlling a motor by compensating for recurring false speed errors generated in a direct current (DC) motor. The apparatus includes a learning control unit adapted to calculate recurring false speed errors related to a mechanical tolerance associated with the motor in each one of a plurality of controlling sections associated with a single rotation of the motor, and generate a corresponding reference speed for each controlling section, and a motor control unit adapted to control the rotational speed of the motor in relation to a speed error defined by a difference between the reference speed for each controlling section and an actual measured speed of the motor for each controlling section.

    摘要翻译: 提供一种通过补偿在直流(DC)电动机中产生的重复误差误差来控制电动机的装置和方法。 该装置包括学习控制单元,其适于计算与与电动机的单次旋转相关联的多个控制部分中的每个控制部分中与电动机相关联的机械公差相关的重复误差误差,并且为每个控制生成相应的参考速度 以及电动机控制单元,其适于控制电动机的转速相对于每个控制部分的参考速度与每个控制部分的电动机的实际测量速度之间的差定义的速度误差。

    Apparatus and method compensating mechanical tolerance of brushless direct current motor and related disk drive
    3.
    发明申请
    Apparatus and method compensating mechanical tolerance of brushless direct current motor and related disk drive 失效
    无刷直流电机和相关磁盘驱动器的装置和方法补偿机械公差

    公开(公告)号:US20070159709A1

    公开(公告)日:2007-07-12

    申请号:US11650420

    申请日:2007-01-08

    IPC分类号: G11B15/46

    CPC分类号: G11B19/28

    摘要: Provided are an apparatus and method for controlling a motor which compensates for a mechanical tolerance of the motor in a case where a feedback sampling frequency increases in order to more precisely control a brushless DC motor. The apparatus for compensating the mechanical tolerance of the brushless DC motor includes: a speed controller calculating a speed error that is a difference between a motor speed measured in control sections and a reference speed using a back electromotive force generated by the motor, and generating a motor control input signal using the speed error of the control section; a moving average calculator calculating a moving average value of the motor control input signals in a predetermined moving average section including recently generated motor control input signal whenever the motor control input signals are generated; and a motor driver generating an electric current for driving the motor corresponding to the moving average value.

    摘要翻译: 提供一种用于控制电动机的装置和方法,其在反馈采样频率增加以更精确地控制无刷DC电动机的情况下补偿电动机的机械容限。 用于补偿无刷直流电动机的机械公差的装置包括:速度控制器,计算使用由电动机产生的反电动势在控制部中测量的电动机速度与参考速度之差的速度误差, 电机控制输入信号采用控制部分的速度误差; 移动平均计算器,每当产生电动机控制输入信号时,计算包括最近生成的电动机控制输入信号的预定移动平均部分中的电动机控制输入信号的移动平均值; 以及电动机驱动器,其根据移动平均值产生用于驱动电动机的电流。

    Method and apparatus for driving spindle motor using adaptive feedforward control
    4.
    发明申请
    Method and apparatus for driving spindle motor using adaptive feedforward control 失效
    使用自适应前馈控制驱动主轴电机的方法和装置

    公开(公告)号:US20070097538A1

    公开(公告)日:2007-05-03

    申请号:US11509614

    申请日:2006-08-25

    IPC分类号: G11B15/46

    摘要: A method and apparatus for driving a spindle motor using adaptive feedforward control. The method includes: detecting a temperature of a drive; calculating a feedforward value corresponding to the detected temperature; and generating a first control signal that is a drive current according to a calculated feedforward value and applying the generated first control signal to the spindle motor.

    摘要翻译: 一种使用自适应前馈控制来驱动主轴电动机的方法和装置。 该方法包括:检测驱动器的温度; 计算对应于检测到的温度的前馈值; 以及根据所计算的前馈值产生作为驱动电流的第一控制信号,并将所生成的第一控制信号施加到主轴电动机。

    Method, medium, and apparatus controlling current gain change of a spindle motor driver
    5.
    发明授权
    Method, medium, and apparatus controlling current gain change of a spindle motor driver 有权
    控制主轴电动机驱动器电流增益变化的方法,介质和装置

    公开(公告)号:US07432673B2

    公开(公告)日:2008-10-07

    申请号:US11296340

    申请日:2005-12-08

    IPC分类号: H02P5/00 H02P5/46 H02P7/08

    CPC分类号: H02P6/04 G11B19/28 H02P6/20

    摘要: A method, medium, and apparatus for controlling a spindle motor of a disk drive. Particularly provided is a method, medium, and apparatus changing a current gain of a spindle motor driver according to the operating environment of the spindle motor. The method of controlling the spindle motor, using the current gain change of the spindle motor driver, includes monitoring a spindle drive control signal indicating the operating environment of the spindle motor and changing a current gain of the spindle motor driver based on the indicated operating environment.

    摘要翻译: 一种用于控制盘驱动器的主轴电动机的方法,介质和装置。 特别提供了根据主轴电动机的操作环境改变主轴电机驱动器的电流增益的方法,介质和装置。 使用主轴电动机驱动器的当前增益变化来控制主轴电动机的方法包括监视主轴驱动控制信号,该主轴驱动控制信号指示主轴电动机的工作环境,并根据指示的操作环境改变主轴电动机驱动器的电流增益 。

    ADAPTIVE SPINDLE MOTOR STARTUP METHOD AND DISK DRIVE USING THE SAME
    6.
    发明申请
    ADAPTIVE SPINDLE MOTOR STARTUP METHOD AND DISK DRIVE USING THE SAME 审中-公开
    使用自适应主轴电机启动方法和磁盘驱动器

    公开(公告)号:US20080037164A1

    公开(公告)日:2008-02-14

    申请号:US11769060

    申请日:2007-06-27

    IPC分类号: G11B17/02

    摘要: An adaptive spindle motor startup method includes applying an internal driving voltage to a disk drive, sensing an internal temperature of the disk drive, and controlling the startup of a spindle motor by adjusting a startup factor related to a startup current applied to the spindle motor corresponding to the sensed temperature. Thus, the delay of time to reach a target rotation rate is prevented in the spindle motor in an extreme environment, for example at temperatures lower or higher than 25° C. The overall startup time is efficiently optimized through the improvement of the startup method of the spindle motor.

    摘要翻译: 自适应主轴电动机启动方法包括:向盘驱动器施加内部驱动电压,感测磁盘驱动器的内部温度,并且通过调节与施加到主轴电动机的启动电流相关的启动因素来控制主轴电动机的起动对应 到感测温度。 因此,在极端环境中,例如在低于或高于25℃的温度下,在主轴电机中防止达到目标转速的时间延迟。通过改进启动方法来有效优化整个启动时间 主轴电机。

    METHOD OF DETECTING APPROXIMATE TOUCH-DOWN, METHOD OF ADJUSTING HEAD FLYING HEIGHT USING THE DETECTED APPROXIMATE TOUCH-DOWN, AND DISK DRIVE
    7.
    发明申请
    METHOD OF DETECTING APPROXIMATE TOUCH-DOWN, METHOD OF ADJUSTING HEAD FLYING HEIGHT USING THE DETECTED APPROXIMATE TOUCH-DOWN, AND DISK DRIVE 审中-公开
    检测近似触摸的方法,使用检测到的大致触摸调节头部飞行高度的方法和磁盘驱动器

    公开(公告)号:US20110158072A1

    公开(公告)日:2011-06-30

    申请号:US12981807

    申请日:2010-12-30

    IPC分类号: G11B21/12 G11B5/455

    摘要: A method and apparatus to control a flying height of a head in a disk drive by detecting a flying state of the head just before it touches down to a disk. The method includes detecting approximate touch-down based on detecting a motion change of a head in a disk track direction by changing a flying height of the head on a rotating disk and determining that the head approaches a touch-down approximated flying height when the detected motion change of the head in the disk track direction exceeds a threshold value.

    摘要翻译: 一种方法和装置,用于通过在接触到盘之前检测头的飞行状态来控制磁盘驱动器中磁头的飞行高度。 该方法包括基于通过改变旋转盘上的头部的飞行高度来检测磁盘轨道方向上的磁头的运动变化来检测近似的下降,并且当检测到磁头时,确定磁头接近接近飞行高度 磁头磁道方向的运动变化超过阈值。

    Apparatus and method compensating mechanical tolerance of brushless direct current motor and related disk drive
    8.
    发明授权
    Apparatus and method compensating mechanical tolerance of brushless direct current motor and related disk drive 失效
    无刷直流电机和相关磁盘驱动器的装置和方法补偿机械公差

    公开(公告)号:US07583464B2

    公开(公告)日:2009-09-01

    申请号:US11650420

    申请日:2007-01-08

    IPC分类号: G11B15/46

    CPC分类号: G11B19/28

    摘要: Provided are an apparatus and method for controlling a motor which compensates for a mechanical tolerance of the motor in a case where a feedback sampling frequency increases in order to more precisely control a brushless DC motor. The apparatus for compensating the mechanical tolerance of the brushless DC motor includes: a speed controller calculating a speed error that is a difference between a motor speed measured in control sections and a reference speed using a back electromotive force generated by the motor, and generating a motor control input signal using the speed error of the control section; a moving average calculator calculating a moving average value of the motor control input signals in a predetermined moving average section including recently generated motor control input signal whenever the motor control input signals are generated; and a motor driver generating an electric current for driving the motor corresponding to the moving average value.

    摘要翻译: 提供一种用于控制电动机的装置和方法,其在反馈采样频率增加以更精确地控制无刷DC电动机的情况下补偿电动机的机械容限。 用于补偿无刷直流电动机的机械公差的装置包括:速度控制器,计算使用由电动机产生的反电动势在控制部中测量的电动机速度与参考速度之差的速度误差, 电机控制输入信号采用控制部分的速度误差; 移动平均计算器,每当产生电动机控制输入信号时,计算包括最近生成的电动机控制输入信号的预定移动平均部分中的电动机控制输入信号的移动平均值; 以及电动机驱动器,其根据移动平均值产生用于驱动电动机的电流。

    DISK DRIVE AND METHOD OF WRITING TO DISK USING DISK DRIVE
    10.
    发明申请
    DISK DRIVE AND METHOD OF WRITING TO DISK USING DISK DRIVE 审中-公开
    磁盘驱动器和使用磁盘驱动器进行磁盘写入的方法

    公开(公告)号:US20120081811A1

    公开(公告)日:2012-04-05

    申请号:US13240642

    申请日:2011-09-22

    IPC分类号: G11B5/09

    摘要: A method of writing to a disk using a disk drive includes determining a first sensing value using a first output value output from a disturbance sensor during a writing operation for multiple servo sectors on the disk, and determining a second sensing value using a second output value output from the disturbance sensor during the writing operation for the multiple servo sectors. Discontinuance of the writing operation is determined based on the difference between the first sensing value and the second sensing value.

    摘要翻译: 使用盘驱动器写入盘的方法包括:在对盘上的多个伺服扇区的写入操作期间使用从干扰传感器输出的第一输出值来确定第一感测值,以及使用第二输出值确定第二感测值 在多个伺服扇区的写入操作期间从扰动传感器输出。 基于第一感测值和第二感测值之间的差异来确定写入操作的停止。