Invention Grant
- Patent Title: Stress compensation systems and methods in sensors
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Application No.: US15232432Application Date: 2016-08-09
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Publication No.: US10481032B2Publication Date: 2019-11-19
- Inventor: Udo Ausserlechner , Mario Motz
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Schiff Hardin LLP
- Main IPC: G01L27/00
- IPC: G01L27/00 ; G01L1/00 ; G01D3/02

Abstract:
Embodiments relate to stress compensation in differential sensors. In an embodiment, instead of compensating for stress on each sensor element independently, stress compensation circuitry aims to remove stress-related mismatch between two sensor elements using the sensor elements themselves to detect the mismatch. A circuit can be implemented in embodiments to detect mechanical stress-related mismatch between sensor elements using the sensor elements, and tune the output signal by a compensation factor to eliminate the mismatch. Embodiments are therefore less complicated and less expensive than conventional approaches. While embodiments have applicability to virtually any differential sensor, including magnetic field, pressure, temperature, current and speed, an example embodiment discussed herein relates to magnetic field.
Public/Granted literature
- US20160349136A1 STRESS COMPENSATION SYSTEMS AND METHODS IN SENSORS Public/Granted day:2016-12-01
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