Current type Hall sensor signal acquisition circuit

The invention provides a current type Hall sensor signal acquisition circuit, which comprises a power supply acquisition module, a bias module and a micro-control module, and is characterized in that in the power supply acquisition module, on-off control is performed on a power supply loop of a current type Hall sensor through a first bias voltage; real-time current of the current type Hall sensor is collected to obtain collected voltage, the collected voltage and second bias voltage act on the sampling switch tube, detection voltage related to the collected voltage is obtained based on pull-up and pull-down conversion of the sampling switch tube, power supply voltage compensation design does not need to be carried out, and meanwhile power supply voltage compensation is not needed. A symmetrical switch tube and a sampling switch tube in the bias module are arranged in a mirror symmetry manner, so that the influence of the temperature drift of the threshold voltage of the sampling switch tube on the sampling p