公开(公告)号：US07327103B1

公开(公告)日：2008-02-05

申请号：US09943705

申请日：2001-08-31

申请人： Ashraf El-Sadi

发明人： Ashraf El-Sadi

IPC分类号： H02P1/34

CPC分类号： G11B5/59605 ,  G11B5/5526 ,  G11B21/12 ,  H02P25/034

摘要： A driver for a voice coil motor in a disk drive includes a sensor that provides a sense current by sensing a coil current in the voice coil motor, a comparator that provides an error current by determining a difference between a command current and the sense current, an integrator that provides an integrated error current by integrating the error current, and an amplifier that provides the coil current by amplifying the integrated error current.

摘要翻译： 用于磁盘驱动器中的音圈电动机的驱动器包括通过感测音圈电动机中的线圈电流来提供感测电流的传感器，通过确定指令电流和感测电流之间的差异来提供误差电流的比较器， 通过积分误差电流提供积分误差电流的积分器，以及通过放大积分误差电流来提供线圈电流的放大器。