ADIADE7816精密多路電表解決方案

第第頁(yè)ADIADE7816精密多路電表解決方案ADI公司的ADE7816是精密的多路(六個(gè)電流通路,一個(gè)電壓通路)電表集成電路,可以測(cè)量線路電壓和電流,計(jì)算有功和無功能量以及瞬態(tài)rms電壓和電流.器件集成了7個(gè)sigmadelta()ADC和高精度能量測(cè)量?jī)?nèi)核,動(dòng)態(tài)范圍1000:1時(shí)的精度誤差小于0.1%,支持電流變壓器和Rogowski線圈傳感器,工作帶寬2kHz,所有六個(gè)通路都能測(cè)量角度.工作電壓3.3V.本文介紹了ADE7816主要特性,功能方框圖,測(cè)試電路圖,信號(hào)流程框圖,有功和無功功率信號(hào)流程框圖,以及ADE7816評(píng)估板主要特性和電路圖.TheADE7816isahighlyaccurate,multichannelmeteringdevicethatiscapableofmeasuringonevoltagechannelanduptosixcurrentchannels.Itmeasureslinevoltageandcurrentandcalculatesactiveandreactiveenergy,aswellasinstantaneousrmsvoltageandcurrent.Thedeviceincorporatessevensigmadelta()ADCswithahighaccuracyenergymeasurementcore.Thesixcurrentinputchannelsallowmultipleloadstobemeasuredsimultaneously.Thevoltagechannelandthesixcurrentchannelseachhaveacompletesignalpathallowingforafullrangeofmeasurements.Eachinputchannelsupportsaflexiblegainstageandissuitableforusewithcurrenttransformers(CTs).SixonchipdigitalintegratorsfacilitatetheuseoftheRogowskicoilsensors.TheADE7816providesaccesstoonchipmeterregistersviaeithertheSPIorI2Cinterface.Adedicatedhighspeedinterface,thehighspeeddatacapture(HSDC)port,canbeusedinconjunctionwithI2CtoprovideaccesstorealtimeADCoutputinformation.Afullrangeofpowerqualityinformation,suchasovercurrent,overvoltage,peak,andsagdetection,isaccessibleviathetwoexternalinterruptpins,andIRQ0IRQ1.TheADE7816energymeteringICoperatesfroma3.3Vsupplyvoltageandisavailableina40leadLFCSPthatisPbfreeandRoHScompliant.ADE7816主要特性:Measuresactiveandreactiveenergy,sampledwaveforms,andcurrentandvoltagerms6currentinputchannelsand1voltagechannel0.1%errorinactiveandreactiveenergyoveradynamicrangeof1000:1SupportscurrenttransformerandRogowskicoilsensorsProvidesinstantaneouscurrentandvoltagereadingsAnglemeasurementsonall6channels2kHzbandwidthoperationReference:1.2V(drift10ppm/Ctypical)withexternaloverdrivecapabilityFlexibleI2C,SPI,andHSDCserialinterfacesADE7816評(píng)估板TheADE7816evaluationkitincludesanevaluationboardthatallowstheperformanceoftheADE78166channelenergymeasurementICtobeevaluated.TheADE7816evaluationkitincludesevaluationsoftware,writteninLabVIEW,thatprovidesaccesstotheregistersoftheADE7816usingaPCinterface.ThisdocumentprovidesinformationtoassisttheuserinevaluatingtheADE7816.CompletespecificationsfortheADE7816areavailableintheADE7816datasheetavailablefromAnalogDevices,Inc.,andshouldbeconsultedinconjunctionwiththisuserguidewhenusingtheevaluationboard.ADE7816評(píng)估板主要特性:Evaluationboardtoimplementafullyfunctional6channelenergymeterAccompanyingPCbasedLabVIEWsoftwareEasyconnectionofexternaltransducersviascrew