发明申请
- 专利标题： On-chip high frequency power supply noise sensor
- 专利标题（中）： 片上高频电源噪声传感器
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申请号： US11334279申请日： 2006-01-18
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公开(公告)号： US20070164754A1公开(公告)日： 2007-07-19
- 发明人: George Smith , Michael Sperling
- 申请人： George Smith , Michael Sperling
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 主分类号： G01R29/26
- IPC分类号： G01R29/26
摘要：
The lower power on-chip power supply noise sensor detects high frequency overshoots and undershoots of the power supply voltage. The sensor has two resistor chains that span the full power rail, with a reactive element to form a low pass filter as part of one of the resistor chains. By this expedient the high frequency transient behavior differs between the two chains, while the low frequency behavior is equivalent. This allows a voltage comparison to be made with comparators. The comparator output can be latched or transmitted as a sampling signal.