公开(公告)号：US20010012171A1

公开(公告)日：2001-08-09

申请号：US09728738

申请日：2000-11-30

申请人： Castlewood Systems, Inc.

发明人： Li-Hsin Lu ,  Stephen R. Jackson ,  David Drouin

IPC分类号： G11B005/596

CPC分类号： G11B5/59683 ,  G11B5/54 ,  G11B21/22

摘要： A method for positioning a magneto-resistive head onto an head load/unload ramp of a storage unit, the magneto-resistive head disposed upon an actuator arm, the actuator arm also having a voice coil, includes the steps of detecting a reset signal, generating a back electro-motive force voltage with a spindle motor in response to the reset signal, generating a drive voltage in response to the back electro-motive force voltage, using a switching circuit to provide the drive voltage to the voice coil in a first polarity for a first period of time, and thereafter, using the switching circuit to provide the drive voltage to the voice coil in a second polarity.

摘要翻译： 一种用于将磁阻头定位到存储单元的磁头加载/卸载斜坡上的方法，所述磁阻头设置在致动器臂上，致动臂还具有音圈，包括检测复位信号的步骤， 利用主轴电动机响应于复位信号产生反向电动力电压，利用开关电路产生响应于后向电动势电压的驱动电压，以将驱动电压提供给第一 极性，然后使用开关电路以第二极性向音圈提供驱动电压。