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Signal processing arrangement for a hall sensor and signal processing method for a hall sensor
Signal processing arrangement for a hall sensor and signal processing method for a hall sensor
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机译:霍尔传感器的信号处理装置和霍尔传感器的信号处理方法
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摘要
A signal processing arrangement for a Hall sensor comprises a signal path, a feedback path and a converter path. The signal path comprises a Hall element and a front-end amplifier which are connected in series and arranged to generate an output signal depending on a magnetic field. The feedback path comprises a compensation circuit and is coupled to the signal path. The converter path comprises an analog-to-digital converter and an offset compensation circuit and is coupled to the signal path. A switch network is coupled between the signal path, the feedback path and the converter path. In a compensation phase, the switch network electrically connects the feedback path to the signal path such that the compensation circuit generates a compensation signal which is coupled into the signal path. In a sampling phase, the switch network connects the signal path to the converter path such that the output signal is reduced by the compensation signal is provided at the converter path.
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