作者：周俊，陈浩
单位：宁波中车时代传感技术有限公司，浙江宁波 315021
中图分类号：TP212.1               
文献标识码：A               
文章编号：1006-883X(2020)06-0031-07
收稿日期：2020-04-24

摘要：闭环霍尔传感器广泛应用于电流信号的检测，由于系统级产品的小型化趋势和应用环境等原因，电流传感器周围常常存在较强的环境磁场，这些环境磁场会一定程度上影响霍尔传感器的测量误差，导致牵引变流系统误报故障。为了优化闭环霍尔电流传感器的抗磁场干扰能力，本文结合仿真、理论分析和相关的设计经验，针对闭环霍尔电流传感器的铁芯提出了一种具有较强抗磁场干扰能力的改良方案。根据改良方案设计的电流传感器在单轨车牵引系统中的应用解决了未改进的电流传感器的磁场干扰问题。
关键词：闭环霍尔传感器；铁芯设计；电路设计；仿真

Design and Improvement of Closed-loop Hall Sensor
ZHOU Jun, CHEN Hao
Ningbo CRRC Times Transducer Technique Co., Ltd., Ningbo 315021, China
Abstract: Closed-loop hall sensors are widely used in the current detection. As a result of the system level product miniaturization trend and operation ambient, there are always many magnetic fields around current sensor. These magnetic fields will affect the accuracy of closed-loop hall sensor and will lead to traction converter system false alarm. Based on the simulation ,theory analysis and the relevant design experience, we put forward an improved core design of closed-loop hall current sensor. The application of improved sensor has been used to solve question  in the traction system of monorail vehicle which has problem of magnetic field interference of the unimproved current sensor.
Key words: closed-loop hall sensor; iron core design; circuit design; simulation

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备注：2020年 第26卷 第06期