Invention Grant
US09124281B2 Accurate and cost efficient linear hall sensor with digital output
有权
具有数字输出的精确且经济高效的线性霍尔传感器
- Patent Title: Accurate and cost efficient linear hall sensor with digital output
- Patent Title (中): 具有数字输出的精确且经济高效的线性霍尔传感器
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Application No.: US14185961Application Date: 2014-02-21
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Publication No.: US09124281B2Publication Date: 2015-09-01
- 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: Eschweiler & Associates, LLC
- Main IPC: G06F15/00
- IPC: G06F15/00 ; H03M1/06 ; G01R33/00 ; G01R33/07 ; H03M1/08 ; H03M1/12 ; H03M1/48

Abstract:
One embodiment of the present invention relates to a magnetic sensor circuit having a magnetic field sensor device configured to generate a digital signal proportional to an applied magnetic field. An analog-to-digital converter converts the analog signal to a digital signal that is provided to a digital signal processing unit, which is configured to digitally track the analog output signal. The digital tracking unit comprises a delay removal circuitry configured to generate a plurality of digital signal component corresponding to a chopping phase. A non-delayed offset compensated digital output signal may be generated within the chopping phase by mathematically operating upon (e.g., adding or subtracting) the plurality of digital signal components, generated by the delay removal circuitry.
Public/Granted literature
- US20140167990A1 Accurate and Cost Efficient Linear Hall Sensor with Digital Output Public/Granted day:2014-06-19
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