6533b873fe1ef96bd12d4b1d
RESEARCH PRODUCT
Active power analog front-end based on a Wheatstone-type magnetoresistive sensor
D. Ramírez MuñozA.e. Navarro AntónJ. Sánchez MorenoS. Casans Bergasubject
EngineeringWheatstone bridgebusiness.industryMetals and AlloysElectrical engineeringWattmeterAC powerCondensed Matter PhysicsAnalog multiplierSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialslaw.inventionAnalog front-endCommon-mode rejection ratioElectricity meterlawElectronic engineeringMetering modeElectrical and Electronic EngineeringbusinessInstrumentationdescription
Abstract 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 700 W power level has been reached with an uncertainty less than 1%. With few changes the proposed circuitry could be used in metering applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-01 | Sensors and Actuators A: Physical |