用于闭环/开环隔离电流传感的集成磁通门磁强计

ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC) Pub Date : 2015-11-02 DOI:10.1109/ESSCIRC.2015.7313877

M. Snoeij, V. Schaffer, S. Udayashankar, Mikhail V. Ivanov

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引用次数: 26

摘要

本文提出了两种用于隔离电流检测的集成式磁传感器集成电路。两者都采用集成磁通门磁强计，灵敏度为250V/T，读出电路为500ksps。激活传感器只需要5.4兆瓦的功率，其功率效率比目前最先进的传感器高20倍。采用外置磁芯，得到的闭环电流传感器IC动态范围为112dB，非线性小于0.03%，而开环电流传感器IC动态范围为100dB，非线性小于0.2%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An integrated fluxgate magnetometer for use in closed-loop/open-loop isolated current sensing

This paper presents two integrated magnetic sensor ICs for isolated current sensing. Both employ an integrated fluxgate magnetometer with a sensitivity of 250V/T and a 500ksps readout circuit. Only 5.4mW is required to excite the sensor, which is 20x more power efficient than the state-of-the-art. With an external magnetic core, the resulting closed-loop current sensor IC achieves a dynamic range of 112dB and a non-linearity below 0.03%, while the open-loop current sensor IC has a dynamic range of 100dB and a non-linearity below 0.2%.

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ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)

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