发明授权
US5479119A High speed active overvoltage detection and protection for overvoltage
sensitive circuits
失效
用于过电压敏感电路的高速有源过压检测和保护
- 专利标题： High speed active overvoltage detection and protection for overvoltage sensitive circuits
- 专利标题（中）： 用于过电压敏感电路的高速有源过压检测和保护
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申请号： US344452申请日： 1994-11-23
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公开(公告)号： US5479119A公开(公告)日： 1995-12-26
- 发明人: Thomas E. Tice , David T. Crook , Kevin M. Kattmann , Charles D. Lane
- 申请人： Thomas E. Tice , David T. Crook , Kevin M. Kattmann , Charles D. Lane
- 申请人地址： MA Norwood
- 专利权人： Analog Devices, Inc.
- 当前专利权人： Analog Devices, Inc.
- 当前专利权人地址： MA Norwood
- 主分类号： G01R19/00
- IPC分类号： G01R19/00 ; G01R19/165 ; H02H7/20 ; H03F1/52 ; H03G11/00 ; H03M1/12 ; H03K5/153
摘要：
An overvoltage protection circuit protects against saturation and damage of sensitive circuitry elements. The protection circuit includes an out-of-range detector which compares an input signal to reference levels to determine if it is within a predetermined range of acceptable inputs. If the input is determined not to be within this range, a control circuit substitutes a supplemental signal within the range for the input signal. Digital correction can be provided to correct the output of the sensitive circuit element while the supplemental signal is being substituted. Numerous circuit designs may be used to implement the protection scheme.
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