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    • 8. 发明公开
    • Disk storage apparatus
    • 磁盘存储设备
    • EP1174861A1
    • 2002-01-23
    • EP01117295.4
    • 2001-07-17
    • Matsushita Electric Industrial Co., Ltd.
    • Inaji, ToshioKohso, Hiroshi
    • G11B5/55G11B21/02
    • G11B5/5526G11B21/025
    • In a disk storage apparatus having an actuator for loading/unloading a magnetic head (2) with respect to a magnetic disk (1), a voltage signal generated when the actuator is driven is detected by a voltage detector (11), a speed load estimator (12) estimates moving speed of the head (2) and level of load disturbance added to the magnetic head (2) from a driving signal in a driver (10) of the actuator and the voltage signal, and outputs a speed estimating signal and a load estimating signal, a speed controller (14) generates and outputs a speed control signal based on a speed command signal and the speed estimating signal, a synthesizer (15) generates a driving signal from the load estimating signal and a speed control signal, and the apparatus loads and unloads the head (2) at a stable speed against the load disturbance caused by friction or the like on a ramp block (7).
    • 在具有用于相对于磁盘(1)装载/卸载磁头(2)的致动器的磁盘存储装置中,当电压检测器(11)检测到致动器被驱动时产生的电压信号,速度负载 估计器(12)根据致动器的驱动器(10)中的驱动信号和电压信号来估计磁头(2)的移动速度和添加到磁头(2)的负载扰动的电平,并且输出速度估计信号 和负载推定信号,速度控制器(14)基于速度指令信号和速度推定信号生成并输出速度控制信号,合成部(15)根据负载推定信号和速度控制信号生成驱动信号 并且该设备以稳定的速度相对于由斜坡块(7)上的摩擦等引起的负载扰动来加载和卸载头部(2)。