The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Nov. 02, 2023
Invensense, Inc., San Jose, CA (US);
Wouter Bracke, Heverlee, BE;
Bert Serneels, Heverlee, BE;
Athanasios Sarafianos, Landen, BE;
Tim Piessens, Bornem, BE;
INVENSENSE, INC., San Jose, CA (US);
Abstract
A continuous time single drive capacitance-to-voltage (C2V) converter can be employed for single sensor, balanced single sensor, or differential sensor. First sensor and/or second sensor can be employed to sense a condition. A capacitive bridge can comprise a first capacitive digital-to-analog-converter (DAC) and second capacitive DAC as a differential node. First capacitive DAC can be associated with first sensor, and second capacitive DAC can be associated with a third capacitive DAC, in series with first sensor, if single sensor is implemented or the second sensor if balanced single sensor or differential sensor is implemented. Capacitive bridge can be connected to differential input of a capacitive feedback amplifier that can be a continuous time amplifier with no signal sampling and no noise folding. Capacitive feedback amplifier can comprise capacitively coupled input common mode feedback, which can remove noise from a sensor drive, and output common mode feedback.