发明名称 |
High bandwidth mean absolute value signal detector with hysteresis and tunability |
摘要 |
A improved signal detector is provided. The signal detector includes a linear amplifier receiving the input signal and providing an amplified signal. A full-wave rectifier is coupled to the linear amplifier and provides a rectified signal. A low-pass filter is coupled to the full-wave rectifier receiving the rectified signal and providing a comparing signal. A high threshold reference and a low threshold reference respectively is applied to a first comparator and a second comparator, each receiving the comparing signal. The first comparator and the second comparator respectively provide a first compared signal and a second compared signal. A reference path providing the high threshold reference and the low threshold reference includes a linear amplifier, a full-wave rectifier and a low-pass filter providing the high threshold reference. A linear charge pump is connected at its input to the linear amplifier and connected at its output to a low-pass filter to provide the low threshold reference.
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申请公布号 |
US6177815(B1) |
申请公布日期 |
2001.01.23 |
申请号 |
US19990396989 |
申请日期 |
1999.09.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAUMGARTNER STEVEN JOHN;NGO ANH DUY;SILJENBERG DAVID WARREN |
分类号 |
G01R19/155;G01R19/165;H03K5/153;(IPC1-7):H03K5/22 |
主分类号 |
G01R19/155 |
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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