发明名称 |
Method and apparatus for spindle motor control |
摘要 |
Information indicative of the placement of spindle motor components may be obtained and used to provide a correction to one or more BEMF-derived attributes used to control the spindle speed. In some implementations, first and second signals indicative of BEMF of different stator windings may be used to determine a speed-related characteristic. The speed related characteristic may be used to determine an error amount, which may be used to determine a correction factor to control the speed of the spindle motor.
|
申请公布号 |
US7378810(B1) |
申请公布日期 |
2008.05.27 |
申请号 |
US20040752601 |
申请日期 |
2004.01.06 |
申请人 |
MARVELL INTERNATIONAL LTD. |
发明人 |
SUTARDJA PANTAS;RICHGELS JERRY |
分类号 |
H02P7/00 |
主分类号 |
H02P7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|