现代电子技术2025，Vol.48Issue(16)：1-6,6.DOI:10.16652/j.issn.1004-373x.2025.16.001
高精度电流传感器温度补偿方法的研究
Research on temperature compensation method of high precision current sensor
摘要
Abstract
The magnetic field sensing element used in Hall current sensors is a semiconductor device,and the resistivity,mobility,and carrier concentration of semiconductor materials are temperature-dependent.It leads to variations in parameters such as Hall voltage,sensitivity coefficient,and internal resistance with temperature,thereby affecting the measurement accuracy of the sensor.In order to solve this problem,the parallel temperature compensation method is used to fully compensate the low order terms of temperature changes,but introduce errors in the high-order terms of temperature changes,which is an incomplete compensation and not suitable for working environments with large temperature changes.Based on the above compensation method,a feedback temperature compensation approach is proposed,which multiplies the compensated output voltage with the temperature compensation output signal,and then sums the product with the output signal of the Hall element to further improve the temperature characteristics of the Hall element and enhance the adaptability of the Hall current sensor to the environment.The simulation and experimental results show that the feedback temperature compensation method can eliminate the impact of temperature variations on Hall element parameters,thereby improving the measurement accuracy of the Hall current sensor and controlling the sensor's accuracy within 0.4%.关键词
霍尔电流传感器/霍尔元件/并联式温度补偿法/反馈式温度补偿法/测量精度/完全补偿/求和电路Key words
Hall current sensor/Hall element/parallel temperature compensation method/feedback temperature compensation method/measurement accuracy/complete compensation/summation circuit分类
信息技术与安全科学引用本文复制引用
武旭,黄海宏,窦盛,王林森,彭岚..高精度电流传感器温度补偿方法的研究[J].现代电子技术,2025,48(16):1-6,6.基金项目
国家核聚变技术综合研究设施项目(2018-000052-73-01-001228) （2018-000052-73-01-001228）
国家重点研究发展计划项目(2017YFE0300504) （2017YFE0300504）
