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1、MaximMAX78630+PPM多相电能监测解决方案关键字：工业控制,自动化系统,智能电表Maxim公司的MAX78630+PPM是用于多相电能监测系统的能量测量处理器,用来实时监测各种三相配置的电能.器件集成了六个可配置的模拟输入,支持电流变压器,并联电阻和Rogowski线圈,以及RAM和闪存,主要用在工业和商业自动化系统和逆变器与可再生能源系统.本文介绍了MAX78630+PPM优势和特性,框图和几种应用框图,以及MAX78630+PPM评估板主要特性,框图,电路图,材料清单和PCB元件布局图.Th
2、eMAX78630+PPMisanenergymeasurementprocessor(EMP)forpolyphasepowermonitoringsystems.Itisdesignedforreal-timemonitoringforavarietyoftypicalthree-phaseconfigurationsinindustrialapplications.Itisavailableina32-pinTQFNpackage.TheMAX78630+PPMprovidesuptosixanalo
3、ginputsforinterfacingtovoltageandcurrentsensors.Scaledvoltagesfromthesensorsarefedtothesingleconverterfront-endutilizingahigh-resolutiondelta-sigmaconverter.Supportedcurrentsensorsincludecurrenttransformers(CT),Rogowskicoils,andresistiveshunts.Anembedded24
4、-bitmeasurementprocessorandfirmwareperformallnecessarycomputationsanddataformattingforaccuratereportingtothehost.Withintegratedflashmemoryforstoringnonvolatilecalibrationcoefficientsanddeviceconfigurationsettings,theMAX78630+PPMiscapableofbeingacompletelya
5、utonomoussolution.TheMAX78630+PPMisdesignedtointerfacetothehostprocessorviatheUARTinterface.Alternatively,SPIorI2Cmayalsobeused. MAX78630+PPM优势和特性: •SixConfigurableAnalogInputsforMonitoringaVarietyofDelta-andWye-ConnectedThree-phaseTopologies •SupportsCurr
6、entTransformers(CT),ResistiveShunts,andRogowskiCoils •Delta-SigmaADCwithPrecisionVoltageReferenceandOn-ChipTemperatureSensor •InternalorExternalOscillatorTimingReference •SPI,I2C,orUARTInterfaceOptionswithConfigurableI/OpinsforalarmSignaling,AddressPins,or
7、UserControl •24-BitMeasurementProcessorwithIntegratedFirmwareandFlashMemoryforNonvolatileStorageofCalibrationandConfigurationParameters •SupportsExtractionofIndividualHarmonics •Small32-TQFNPackageandReducedBillofMaterialsTheMAX78630+PPMdeviceintegratesall
8、thehardwareblocksrequiredforaccurateACpowerandenergymeasurement.Includedonthedeviceare: •Oscillatorandclockmanagementlogic •Power-onreset,watchdogtimer,andresetcircuitry •High-accuracyAnalogFrontEnd(AFE)witht
