Invention Grant
- Patent Title: Analog angle sensor with digital feedback loop
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Application No.: US16887898Application Date: 2020-05-29
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Publication No.: US11703314B2Publication Date: 2023-07-18
- Inventor: Nicolas Rigoni , Octavio H. Alpago , Leandro Tozzi
- Applicant: Allegro MicroSystems, LLC
- Applicant Address: US NH Manchester
- Assignee: Allegro MicroSystems, LLC
- Current Assignee: Allegro MicroSystems, LLC
- Current Assignee Address: US NH Manchester
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01R33/00

Abstract:
An angle sensor comprising: a plurality of magnetic field sensing elements configured to detect a magnetic field and generate a respective plurality of analog magnetic field signals; a plurality of analog frontend circuits each analog frontend circuit associated with a respective magnetic field sensing element; and a digital feedback circuit configured to generate digital magnetic field signals from the plurality of analog magnetic field signals and generate digital error correction values, wherein the plurality of analog frontend circuits are configured to obtain the digital error correction values from the digital feedback circuit, generate analog correction values from the digital error correction values, and apply the analog correction values to the plurality of analog magnetic field signals to generate a plurality of corrected analog magnetic field signals.
Public/Granted literature
- US20210372766A1 ANALOG ANGLE SENSOR WITH DIGITAL FEEDBACK LOOP Public/Granted day:2021-12-02
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