Capacitive sensor assembly and electrical circuit therefor
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 11, 2025
Grant Date -
Jul 4, 2024
app pub date -
Dec 31, 2022
filing date -
Dec 31, 2022
priority date (Note) -
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Abstract
A capacitive sensor assembly is disclosed, including a capacitive motor coupled to a charge pump circuit via a low pass filter, and a frontend amplifier circuit having an input coupled to the capacitive motor interface and an output coupled to an output of the electrical circuit. An injection current source (ICS) is coupled to the charge pump circuit output and configured to control voltage across a diode-based resistive element of the low pass filter during a transient startup phase of the charge pump circuit, wherein a settling time of the charge pump is reduced.
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