- 专利标题： System and method for low distortion capacitive signal source amplifier
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申请号： US16171741申请日： 2018-10-26
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公开(公告)号： US10924069B2公开(公告)日： 2021-02-16
- 发明人: Michael Kropfitsch , Jose Luis Ceballos
- 申请人： Infineon Technologies AG
- 申请人地址： DE Neubiberg
- 专利权人： Infineon Technologies AG
- 当前专利权人： Infineon Technologies AG
- 当前专利权人地址： DE Neubiberg
- 代理机构： Slater Matsil, LLP
- 主分类号： H03F3/183
- IPC分类号： H03F3/183 ; H03F3/187 ; H03F1/56 ; H03F1/32 ; H04R3/00 ; H04R19/00 ; H04R19/04
摘要：
According to an embodiment, a method includes amplifying a signal provided by a capacitive signal source to form an amplified signal, detecting a peak voltage of the amplified signal, and adjusting a controllable impedance coupled to an output of the capacitive signal source in response to detecting the peak voltage. The controllable impedance is adjusted to a value inversely proportional to the detected peak voltage.
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