发明名称 |
Disk drive and method for controlling driving voltage of spindle motor applied to disk drive |
摘要 |
A voltage determination unit dynamically determines a first voltage required to maintain the rotational speed of a spindle motor (SPM) at the rated rotational speed according to a rotational state of the SPM. A CPU determines a second voltage for driving the SPM by software processing in a software control mode. A voltage generator generates the first voltage determined by the voltage determination unit as driving voltage in a hardware control mode and generates the second voltage determined by the CPU as the driving voltage in the software control mode. A driver circuit drives the SPM by the driving voltage generated with the voltage generator.
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申请公布号 |
US2004085668(A1) |
申请公布日期 |
2004.05.06 |
申请号 |
US20030678310 |
申请日期 |
2003.10.06 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
SAKAMOTO NOBUYUKI |
分类号 |
G11B19/20;G11B19/28;H02P6/20;H02P29/00;(IPC1-7):G11B15/46 |
主分类号 |
G11B19/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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