用于高性能磁场传感的电流旋转和信号调理电路

Sagnik Kumar, G. Narayanan, R. Muralidharan
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引用次数: 0

摘要

磁场传感在许多电力电子和电机控制应用中非常重要。通过利用新兴的宽带隙材料和结构的能力,如AlGaN/GaN异质结,可以实现高性能磁场传感器。这种传感器可以在极端温度下进行可靠的现场传感。霍尔传感元件通常产生低幅度的输出电压,由于传感元件中的不均匀性和应力,输出电压的偏移量相对较大。在这项工作中,设计,制造和校准了一个电子子系统,其中电流旋转的方法与信号调理网络一起使用,以抵消这些偏移的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Current Spinning and Signal Conditioning Circuit for High-Performance Magnetic Field Sensing
Magnetic field sensing is important in many power electronic and motor control applications. By exploiting the capabilities of emerging wide band-gap materials and structures, such as AlGaN/GaN heterojunctions, high-performance magnetic field sensors can be realised. Such sensors can be used for reliable field sensing at extreme temperatures. A Hall sensing element typically generates a low-magnitude output voltage with a relatively large offset due to non-uniformities and stresses in the sensing element. In this work, an electronic subsystem is designed, fabricated and calibrated, whereby the method of current spinning is used alongside a signal conditioning network to cancel the effect of these offsets.
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