发明名称 |
Optical servo control circuits and methods using pulse width modulation and offset control for driving an electromechanical motor |
摘要 |
Servo control circuitry 300 includes a digital to analog converter 402 for converting digital servo control data into a pulse width modulated signal. A first conductor transmits the pulse width modulated signal to an external device 409. A second conductor transmits a reference signal derived from the clock signal to external device 409, external device 409 differentially receiving the pulse width modulated signal with respect to the reference signal.
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申请公布号 |
US6552979(B1) |
申请公布日期 |
2003.04.22 |
申请号 |
US20000702174 |
申请日期 |
2000.10.30 |
申请人 |
CIRRUS LOGIC, INC. |
发明人 |
MOKRY WESLEY LADD;BAIRD REX THOMAS |
分类号 |
G11B15/52;(IPC1-7):G11B15/52 |
主分类号 |
G11B15/52 |
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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