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公开(公告)号:US06876609B2
公开(公告)日:2005-04-05
申请号:US09951869
申请日:2001-09-10
IPC分类号: G11B7/085 , G11B7/09 , G11B7/095 , G11B7/12 , G11B7/13 , G11B7/135 , G11B19/247 , G11B19/28 , G11B5/09
CPC分类号: G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/247 , G11B19/28
摘要: A system and method for controlling spin speed, which includes a module for receiving an indication to make a velocity change from a first RPM to a second RPM. The difference between the first RPM and the second RPM is a predetermined value. The module is operable to rotate an optical medium at a maximum control effort from the first RPM to the second RPM, and rotate the optical medium with a proportional plus integral (P+I) control at the second RPM.
摘要翻译: 一种用于控制旋转速度的系统和方法,其包括用于接收从第一RPM到第二RPM的速度变化的指示的模块。 第一RPM和第二RPM之间的差异是预定值。 该模块可操作以以最大控制力从第一RPM旋转光学介质到第二RPM,并以第二RPM的比例加积分(P + I)控制旋转光学介质。
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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
CPC分类号: G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/247 , G11B19/28
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。
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