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公开(公告)号：EP0461915A2
公开(公告)日：1991-12-18
申请号：EP91305403.7
申请日：1991-06-14
CPC分类号： G11B21/083
摘要： Disclosed is a method for performing a seek operation in a disk drive using current in the saturation mode to accelerate and decelerate the actuator arm. In a first embodiment, several measurements are made during the acceleration portion of the seek to estimate the deceleratlon available in saturation mode. In a second embodiment, the point at which the current is switched from acceleration current to deceleration current is adjusted based upon the position where the actuator arm comes within a desired amount of the velocity of a velocity profile assuming worst case conditions.
摘要翻译： 公开了一种使用饱和模式中的电流在磁盘驱动器中执行寻道操作以加速和减速致动器臂的方法。 在第一实施例中，在搜索的加速部分期间进行若干测量，以估计在饱和模式中可用的减速度。 在第二实施例中，基于执行器臂处于期望的速度分布速度的速度的位置，调整电流从加速电流切换到减速电流的点。
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2.发明公开Multi-mode drive motor speed control for use in particular with information storage disks 失效在许多方面，工作速度控制电机驱动，特别是对于信息存储磁盘。
公开(公告)号：EP0094492A2
公开(公告)日：1983-11-23
申请号：EP83102807.1
申请日：1983-03-22
CPC分类号： G01P3/66 , G11B19/28 , H02P23/186
摘要： A three mode motor speed control for a device such as a magnetic disk drive requiring a closely regulated running speed provides for acceleration, deceleration, obtaining close speed regulation and maintaining speed regulation of a rotating device during operation. The first mode of control provides acceleration or deceleration while checking velocity each eighth revolution and the second mode of control uses single revolutions to measure speed over an accurate rotational distance to obtain close speed regulation. Both mode one and mode two are controlled by the device controller. During run conditions with no error signal, a third mode of control of the closely regulated velocity is maintained by separate hardware circuits which frees the processor for other uses. An error condition forces control to mode one for re-establishment of the regulated running speed and a command to stop the drive forces control to level one for deceleration and stop procedures.
摘要翻译： 用于设备的三种模式的电机速度控制：如磁盘驱动器需要紧密调控速运行为加速，减速，速度调节和关闭获取操作期间保持旋转装置的转速调节提供。 控制的第一模式提供的加速或减速，同时检查速度每第八革命和控制的第二模式使用单转以上来测量速度，以准确旋转距离，以获得接近速度调节。 两个模式之一，模式2是由设备控制器控制。 在与无差错的信号的运行条件下，精密地调节速度的控制的第三模式是由释放用于其它用途的处理器单独的硬件电路维持。 错误条件势力控制模式，以一个重新建立调节运行速度和指令以停止驱动力控制减速一级和停止过程。
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公开(公告)号：EP0249020B1
公开(公告)日：1993-09-01
申请号：EP87106183.4
申请日：1987-04-28
CPC分类号： G11B21/106 , G05D3/1454 , G11B21/085
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公开(公告)号：EP0461915A3
公开(公告)日：1993-05-05
申请号：EP91305403.7
申请日：1991-06-14
CPC分类号： G11B21/083
摘要： Disclosed is a method for performing a seek operation in a disk drive using current in the saturation mode to accelerate and decelerate the actuator arm. In a first embodiment, several measurements are made during the acceleration portion of the seek to estimate the deceleratlon available in saturation mode. In a second embodiment, the point at which the current is switched from acceleration current to deceleration current is adjusted based upon the position where the actuator arm comes within a desired amount of the velocity of a velocity profile assuming worst case conditions.
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公开(公告)号：EP0249020A3
公开(公告)日：1989-10-18
申请号：EP87106183.4
申请日：1987-04-28
CPC分类号： G11B21/106 , G05D3/1454 , G11B21/085
摘要： A controller for a voice coil motor driven disk file actuator (10) is described. The device has an online adjustable gain characteristic for controlling movement of the actuator assembly and an estimator (56) that estimates actuator velocity and bias. Forward gain is estimated from position and coil current measurements and compared with a nominal value to create an error signal used to adjust the controller and estimator gain characteristics. The control technique allows changes in the open loop system without changing the closed loop performance. By monitoring loop gain it is possible to alter compensator gains to maintain a constant closed loop performance.
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6.发明公开Disk drive actuator velocity limiting circuit 失效Schaltung zur Geschwindigkeitsbegrenzung des Antriebes einer Platteneinheit。
公开(公告)号：EP0249062A2
公开(公告)日：1987-12-16
申请号：EP87107233.6
申请日：1987-05-19
摘要： A control circuit for a disk drive actuator is shown wherein the power to the actuator is switched from the normal power source to the spindle drive motor windings (50) functioning as a generator, when the power is interrupted. The rectified output of the current from the stator windings has a polarity which drives the actuator to the home position. Back to back diode means (51, 52) are connected in parallel with the actuator coil (48) when the spindle motor windings are functioning to generate power. The number of series connected diodes in each of the diode means determines the upper limit of actuator velocity. The switching function can be actuated by either a power interruption or by an error condition.
摘要翻译： 示出了用于盘驱动器致动器的控制电路，其中当电力中断时，致动器的功率从正常电源切换到用作发电机的主轴驱动电动机绕组（50）。 来自定子绕组的电流的整流输出具有将致动器驱动到原始位置的极性。 当主轴电动机绕组正在起作用时，背对背二极管装置（51,52）与致动器线圈（48）并联连接。 每个二极管装置中的串联二极管的数量决定了致动器速度的上限。 切换功能可以通过电源中断或错误状态来启动。
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公开(公告)号：EP0249062B1
公开(公告)日：1992-08-19
申请号：EP87107233.6
申请日：1987-05-19
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公开(公告)号：EP0249062A3
公开(公告)日：1989-09-20
申请号：EP87107233.6
申请日：1987-05-19
摘要： A control circuit for a disk drive actuator is shown wherein the power to the actuator is switched from the normal power source to the spindle drive motor windings (50) functioning as a generator, when the power is interrupted. The rectified output of the current from the stator windings has a polarity which drives the actuator to the home position. Back to back diode means (51, 52) are connected in parallel with the actuator coil (48) when the spindle motor windings are functioning to generate power. The number of series connected diodes in each of the diode means determines the upper limit of actuator velocity. The switching function can be actuated by either a power interruption or by an error condition.
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10.发明公开
公开(公告)号：EP0249020A2
公开(公告)日：1987-12-16
申请号：EP87106183.4
申请日：1987-04-28
CPC分类号： G11B21/106 , G05D3/1454 , G11B21/085
摘要： A controller for a voice coil motor driven disk file actuator (10) is described. The device has an online adjustable gain characteristic for controlling movement of the actuator assembly and an estimator (56) that estimates actuator velocity and bias. Forward gain is estimated from position and coil current measurements and compared with a nominal value to create an error signal used to adjust the controller and estimator gain characteristics. The control technique allows changes in the open loop system without changing the closed loop performance. By monitoring loop gain it is possible to alter compensator gains to maintain a constant closed loop performance.
摘要翻译： 描述了一种用于音圈马达驱动盘文件驱动器（10）的控制器。 该装置具有用于控制致动器组件的运动的在线可调节增益特性和估计致动器速度和偏压的估计器（56）。 从位置和线圈电流测量估计正向增益，并与标称值进行比较，以产生用于调整控制器和估计器增益特性的误差信号。 控制技术允许开环系统的改变，而不改变闭环性能。 通过监控回路增益，可以改变补偿器增益以保持恒定的闭环性能。
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