Low hysteresis current sensor

The embodiment of the invention discloses a low hysteresis current sensor. The low hysteresis current sensor comprises a magnetic core and a TMR element. An air gap is disposed on the magnetic core. The TMR element is disposed within the air gap. It is characterized in that the low hysteresis current sensor further comprises a magnetic balance component and a balance power supply. The balance power supply is electrically connected to the magnetic balance element for providing current to the magnetic balance element. The TMR element is disposed within a magnetic field generated by a current flowing through the magnetic balance element. The magnetic field generated by a current flowing through the magnetic balance element is used to neutralize a magnetic field generated by the measured current in the air gap. The low hysteresis current sensor has the advantages of small hysteresis, good consistency, high sensitivity, small volume, and no high voltage danger. 本发明实施例公开了种低磁滞电流传感器。该低磁滞电流传感器包括磁芯和TMR元件，在所述磁芯上设置有气隙，所述