发明授权
- 专利标题: PWM controller with integrated PLL
- 专利标题(中): 带集成PLL的PWM控制器
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申请号: US10264359申请日: 2002-10-04
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公开(公告)号: US07269217B2公开(公告)日: 2007-09-11
- 发明人: James William Leith , Mark Dickmann
- 申请人: James William Leith , Mark Dickmann
- 申请人地址: US CA Milpitas
- 专利权人: Intersil Americas Inc.
- 当前专利权人: Intersil Americas Inc.
- 当前专利权人地址: US CA Milpitas
- 代理机构: Graybeal Jackson Haley LLP
- 代理商 Paul A. Bernkopf
- 主分类号: H03K7/08
- IPC分类号: H03K7/08 ; H03K9/08
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.
公开/授权文献
- US20040066845A1 PWM controller with integrated PLL 公开/授权日:2004-04-08
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