发明授权
US4609877A Buffer circuit with differential structure for measurement of capacitive
charges
失效
具有差分结构的缓冲电路，用于测量电容性电荷
- 专利标题： Buffer circuit with differential structure for measurement of capacitive charges
- 专利标题（中）： 具有差分结构的缓冲电路，用于测量电容性电荷
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申请号： US795834申请日： 1985-11-07
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公开(公告)号： US4609877A公开(公告)日： 1986-09-02
- 发明人: Germano Nicollini , Daniel Senderowicz , Pierangelo Confalonieri
- 申请人： Germano Nicollini , Daniel Senderowicz , Pierangelo Confalonieri
- 申请人地址： ITX Catania
- 专利权人： SGS Microelettronica S.p.A.
- 当前专利权人： SGS Microelettronica S.p.A.
- 当前专利权人地址： ITX Catania
- 优先权： ITX23531A/84 19841112
- 主分类号： H03F3/72
- IPC分类号： H03F3/72 ; G01R29/24 ; H03F3/70 ; H03F3/45
摘要：
In a buffer with an operational amplifier having two inputs and two outputs and two feedback capacitances are inserted two other capacitances which in the measurement stage are switched in parallel to the feedback ones with opposite sign in such a manner as to cancel out the effects on the output voltage signal.
公开/授权文献
- US5835374A CAD apparatus 公开/授权日：1998-11-10
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