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1. (WO2018127727) CAPACITIVE SENSOR READOUT CIRCUIT

Pub. No.:    WO/2018/127727    International Application No.:    PCT/IB2017/000365
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Fri Mar 17 00:59:59 CET 2017
IPC: H03K 17/96
Applicants: DISRUPTIVE TECHNOLOGIES RESEARCH AS
MOLDSVOR, Oystein
Inventors: HERNES, Bjornar
Title: CAPACITIVE SENSOR READOUT CIRCUIT
Abstract:
A capacitive sensor device is provided. The capacitive sensor device may include a clock module configured to generate a clock signal, a sensor module configured to generate a reference signal and a sense signal, and sample a difference between the reference signal and the sense signal according to the clock signal, and a current supply module configured to selectively generate a bias current according to the clock signal, and charge each of the clock module and the sensor module based on the bias current and according to the clock signal.