The array Hall current sensor adopts the design without magnetic core,which solves the disadvanta-ges of the traditional current sensor with large weight and volume,and can effectively detect the current to a-chieve the purpose of detecting,controlling and protecting the circuit.However,in automotive electronics,in-dustrial instruments and other application scenarios,the line layout is relatively dense,and the current sensor is easy to produce crosstalk error when collecting current.Firstly,the circular array is transformed into elliptical array by projection method.The double-ring design is adopted,and each pair of sensors is arranged on the same path,in opposite directions.Then,a crosstalk optimization algorithm for elliptic array sensor is proposed to re-duce the influence caused by the conductor shifting the array center and interference conductor.Finally,an ex-perimental platform is built to measure different sensor arrays and verify the crosstalk optimization algorithm.The experimental results show that the crosstalk optimization algorithm can effectively suppress the crosstalk er-ror caused by the interference conductor,and the measurement error is controlled within 1％,which greatly im-proves the current detection accuracy.
关键词
霍尔电流传感器/椭圆双环阵列/串扰误差/电流检测
Key words
Hall current sensor/elliptic double-ring array/crosstalk error/current detection
维普
万方数据