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Capacitance sensor with sensor capacitance compensation / Cypress Semiconductor Corporation




Title: Capacitance sensor with sensor capacitance compensation.
Abstract: A capacitance sensing circuit may include a switching circuit configured to generate a sensor current by charging and discharging a capacitive sensor electrode, and a current mirror that generates a mirror current based on the sensor current. Based on the mirror current, a measurement circuit generates an output signal representative of a capacitance of the capacitive sensor electrode. ...


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USPTO Applicaton #: #20120286800
Inventors: Andriy Maharyta, Andriy Ryshtun


The Patent Description & Claims data below is from USPTO Patent Application 20120286800, Capacitance sensor with sensor capacitance compensation.




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stats Patent Info
Application #
US 20120286800 A1
Publish Date
11/15/2012
Document #
13443718
File Date
04/10/2012
USPTO Class
324603
Other USPTO Classes
International Class
01R27/26
Drawings
10




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Cypress Semiconductor Corporation


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20121115|20120286800|capacitance sensor with sensor capacitance compensation|A capacitance sensing circuit may include a switching circuit configured to generate a sensor current by charging and discharging a capacitive sensor electrode, and a current mirror that generates a mirror current based on the sensor current. Based on the mirror current, a measurement circuit generates an output signal representative |Cypress-Semiconductor-Corporation
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