Three-Phase AC Current Measurement Using Current ...
R2R1R3R4VREFCCCVCCRshTPS71733REF3212VINV CCVREFTDK , 1W0 A to 300 A15 ppm,N = 30002515INA199Copyright 2016, Texas Instruments Incorporated1TIDUBK3A April2016 RevisedJuly 2016SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedThree-P haseAC CurrentMeasurementUsingCurrentTransforme rReferenceDesignTI DesignsThree-PhaseAC CurrentMeasurementUsingCurrentTransforme rReferenceDesignBluetoothis a registeredtrademarkof BluetoothSIG, othertrademarksare the propertyof referencedesigndemonstrateshigh-accuracy ,wide-rangeAC currentmeasurementfor a three-phasemotorusingthe zero-driftarchitectureof the designalso featuresa low powerconsumptionof25 mW for a gain stageof 200 as comparedto integratedhigh-precisionresistorsinsidet he INA199deviceallowfor a muchsmallerdesignfootprintand BOMthanwith a designfootprintand BOMcost is muchsmallerthana discretesolutiondue to the integratedhigh precisionresistorsinsidethe E2E ExpertsDesignFeatures % Accuracy(Uncalibrated)for 10%to 100%ofFull-ScalePrimaryCurrent PowerConsumptionof 25 mW for GainStage SmallFootprintEliminatesRequirementof ExternalResistorsfor AmplificationFeaturedApplications Compressors,Chillers,and Blowers(HVAC) ID and FD Fans,ScrewFeeders,and FeedPumps(SteamBo)
Three-Phase AC Current Measurement Using Current Transformer
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