Patent ID: 11933645
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An apparatus comprising:
a capacitive sensor configured to detect a capacitance value associated with a conductor;
a counter coupled to the capacitive sensor, wherein the counter is configured to determine a count value associated with the capacitance value; and
a controller coupled to the counter, wherein the controller is configured to determine a characteristic based on the count value, wherein:
the capacitive sensor includes a first switch and a second switch coupled to a resistor-capacitor (RC) network;
the first switch and the second switch are configured to transfer a charge to the RC network; and
the counter is configured to count a number of cycles in which the first switch and the second switch transfer the charge to the RC network.