发明申请
- 专利标题： Asynchronous Error Correction Circuit for Switching Amplifier
- 专利标题（中）： 开关放大器异步纠错电路
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申请号： US12104874申请日： 2008-04-17
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公开(公告)号： US20090261902A1公开(公告)日： 2009-10-22
- 发明人: Pallab Midya , Matthew R. Miller , Theresa Paulo , William J. Roeckner
- 申请人： Pallab Midya , Matthew R. Miller , Theresa Paulo , William J. Roeckner
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 主分类号： H03F3/217
- IPC分类号： H03F3/217
摘要：
A circuit (104, 106) includes a comparison circuit (202, 504, 506, 602) and a correction circuit (204, 508, 510, 604). The comparison circuit provides a comparison signal (212, 524, 526, 612) in response to an error value (210, 520, 522, 610) and a reference value (214). The error value is based on a pulse modulated input signal (114) and a pulse modulated output signal (118). The correction circuit asynchronously provides a corrected pulse modulated signal (116) by selectively delaying and advancing an edge of the pulse modulated input signal based on the comparison signal. The pulse modulated output signal is based on the corrected pulse modulated signal.
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