Active power analog front-end based on a Wheatstone-type magnetoresistive sensor

被引：7

作者：

Ramirez Munoz, D. ^{[1
]}

Sanchez Moreno, J. ^{[1
]}

Casans Berga, S. ^{[1
]}

Navarro Anton, A. E. ^{[1
]}

机构：

[1] Univ Valencia, Dept Elect Engn, E-46100 Valencia, Spain

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2011年 / 169卷 / 01期

关键词：

Power measurement; Analog multiplier; Magnetoresistive sensor; Energy meter; INDUSTRIAL-FREQUENCY; WATTMETER;

D O I：

10.1016/j.sna.2011.04.044

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the proposed work a practical magnetoresistive wattmeter based on a commercial sensor is designed to measure active power at industrial frequencies. The electronic conditioning circuit uses differential blocks in order to preserve the sensor initial common mode rejection ratio. A 700W power level has been reached with an uncertainty less than 1%. With few changes the proposed circuitry could be used in metering applications. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：83 / 88

页数：6

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