CSNL181系列電流傳感器---現貨CSNSeriesclosedloopcurrentsensor,measuresAC,DCorimpulsecurrent,300Anominal,±600amprange,Molexconnector,2000turn FeaturesCurrentsensingupto1200ampsMeasuresac,dcandimpulsecurrentsCompetitivecost/performanceratioRapidresponseHighoverloadcapabilityHighlevelofelectricalisolationbetweenprimaryandsecondarycircuitsIndustrialoperatingtemperaturerangeSmallsizeandweightTypicalApplicationsVariablespeeddrivesOvercurrentprotectionGroundfaultdetectorsCurrentfeedbackcontrolsystemsRoboticsUPSandtelecommunicationpowersuppliesWeldingpowersuppliesAutomotive-BatterymanagementsystemsWattmetersDescriptionTheCSNSeriesofclosedloopcurrentsensorsarebasedontheprinciplesoftheMagnetoresistiveorHalleffects,andthenullbalanceorzeromagneticfluxmethod(feedbacksystem).Themagneticfluxinthesensorcoreisconstantlycontrolledatzero.Theamountofcurrentrequiredtobalancezerofluxisthemeasureoftheprimarycurrentflowingthroughtheconductor,multipliedbytheratiooftheprimarytosecondarywindings.Thisclosedloopcurrentistheoutputfromthedeviceandpresentsanimageoftheprimarycurrentreducedbythenumberofsecondaryturnsatanytime.Thiscurrentcanbeexpressedasavoltagebypassingitthrougharesistor.