Invention Grant
- Patent Title: Spinning current hall sensor with residual offset calibration signal
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Application No.: US14828759Application Date: 2015-08-18
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Publication No.: US09389284B2Publication Date: 2016-07-12
- Inventor: 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: Dicke, Billig & Czaja, PLLC
- Main IPC: G01R33/07
- IPC: G01R33/07

Abstract:
A spinning current Hall sensor configured to provide a sequence of input signals in response to a bias current being applied to a sequence of terminals of Hall sensing elements of the Hall sensor, the terminals of the Halls sensing elements configured to be interconnected in a sequence of configurations between a bias current supply and ground, with the bias current supply being connected to and applying the bias current to a different one of the terminals of each configuration. A chopping circuit demodulates the sequence of input signals to provide a corresponding sequence of demodulated positive and negative signals, with a residual offset calibration signal for the spinning current Hall sensor being based on the sequence of demodulated positive and negative signals.
Public/Granted literature
- US20150355293A1 SENSOR SYSTEM Public/Granted day:2015-12-10
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