Spin motor control in an optical drive
    42.
    发明授权
    Spin motor control in an optical drive 有权
    在光驱中旋转电机控制

    公开(公告)号:US06704261B2

    公开(公告)日:2004-03-09

    申请号:US09951930

    申请日:2001-09-10

    IPC分类号: G11B700

    摘要: A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The control system can include a lookup table module providing a reference period corresponding to each of a physical sector address on an optical medium. The system can further include a drive module configured to sense a BEMF zero crossing occurring in a spin motor. A measurement of two of the BEMF zero crossings can be used to calculate a spin period measurement. The reference period can be compared to the spin period measurement to provide a period error value. The system also includes a controller module for providing a control command to drive the spin motor in response to the period error value.

    摘要翻译: 一种用于控制电机系统的操作的系统和方法,其解决了小尺寸光盘系统的设计挑战。 控制系统可以包括查找表模块,其提供对应于光学介质上的物理扇区地址中的每一个的参考周期。 该系统还可以包括被配置为感测在旋转马达中发生的BEMF零交叉的驱动模块。 可以使用两个BEMF零交叉点的测量来计算自旋周期测量。 可以将参考周期与自旋周期测量进行比较以提供周期误差值。 该系统还包括控制器模块,用于响应周期误差值提供控制命令来驱动旋转电动机。