发明名称 |
PWM controller with integrated PLL |
摘要 |
A pulse-width modulation (PWM) controller to supply power to electronic components using a phase lock loop (PLL) is presented. A PWM controller comprises an input node operable to receive a reference signal and a phase-locked loop (PLL). The PLL comprises an oscillator operable to receive an error-correction signal and to generate an oscillator signal having a frequency that is related to the error-correction signal, a phase-frequency detector (PFD) coupled to the oscillator and operable to receive the reference signal and to generate the error-correction signal based upon a phase difference between the reference signal and a feedback signal, and a suppression circuit coupled to the PFD and operable to periodically enable the PFD to generate the error-correction signal.
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申请公布号 |
US2004066845(A1) |
申请公布日期 |
2004.04.08 |
申请号 |
US20020264359 |
申请日期 |
2002.10.04 |
申请人 |
LEITH JAMES WILLIAM;DICKMANN MARK |
发明人 |
LEITH JAMES WILLIAM;DICKMANN MARK |
分类号 |
H03L7/07;H03L7/089;H03L7/107;H03L7/183;(IPC1-7):H03K7/08;H03D3/24;H03K9/08 |
主分类号 |
H03L7/07 |
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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