Patent ID: 11927645
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The capacitive sensor of claim 1, wherein:
the pull-in event causes the first capacitance to be at a maximum capacitance and a non-pull-in event causes the first capacitance to be less than the maximum capacitance,
the diagnostic circuit is configured to determine whether the first time constant corresponds to the maximum capacitance,
when the first electrical signal is a pull-in signal, the diagnostic circuit is configured to detect a first fault on a first condition that the first time constant does not correspond to the maximum capacitance, and
when the first electrical signal is a non-pull-in signal, the diagnostic circuit is configured to detect a second fault on a second condition that the first time constant corresponds to the maximum capacitance.