发明名称 |
A method and apparatus for controlling a motor in a disc drive by modulating the commutation angle |
摘要 |
<p>A motor control circuit controls a motor in a disc drive is provided. The motor control circuit includes a commutation circuit which provides commutation signals to the motor to commutate the motor at a commutation frequency. A frequency modulation circuit is operably coupled to the commutation circuit. The frequency modulation circuit provides a modulation signal which frequency modulates the commutation frequency according to a predetermined pattern.</p> |
申请公布号 |
GB2339349(B) |
申请公布日期 |
2000.10.18 |
申请号 |
GB19990017279 |
申请日期 |
1998.01.28 |
申请人 |
* SEAGATE TECHNOLOGY INC.;* SEAGATE TECHNOLOGY LLC |
发明人 |
ANDREW R * MOTZKO;GARRY E * KORBEL;JOHN M * BAKER;STUART K * FRANCIS |
分类号 |
G11B19/20;G11B19/28;H02P6/00;H02P6/08;H02P6/18;(IPC1-7):H02P6/06;H03L7/06 |
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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