标签: harmonics

OutputHarmonicsofanH-BridgeInverterwithDeadTime

Foreverytimedomainwaveformthereisacorrespondingfrequencydomainwaveform,andviceversa.Forexample,arectangularpulseinthetimedomaincoincideswithasincfunction[i.e.,sin(x)/x]inthefrequencydomain.Dualityprovidesthatthereverseisalsotrue;arectangularpulseinthefrequencydomainmatchesasincfunctioninthetimedomain.WaveformsthatcorrespondtoeachotherinthismannerarecalledFouriertransformpairs.Severalcommonpairsarepresentedinthischapter.CHAPTERFourierTransformPairs11Foreverytimedomainwaveformthereisacorrespondingfrequencydomainwaveform,andviceversa.Forexample,arectangularpulseinthetimedomaincoincideswithasincfunction[i.e.,sin(x)/x]inthefrequencydomain.Dualityprovidesthatthereverseisalsotrue;arectangularpulseinthefrequencydomainmatchesasincfunctioninthetimedomain.WaveformsthatcorrespondtoeachotherinthismannerarecalledFouriertransformpairs.Severalcommonpairsarepresentedinthischapter.DeltaFunctionPairsFordiscretesignals,thedeltafunctionisasimplewaveform,andhasanequallysimpleFouriertransformpair.Figure11-1ashowsadeltafunctionin……

Abstract:Thefirstpartofthisarticleseriesdiscussescommonlyknowndefinitionsmostcrucialforhigh-speeddataconverters(inthiscaseanalog-to-digitalconverterorshortADCs)usedincommunications,instrumentationanddataacquisitionapplications.Thepurposeofthisarticleistohelpthereadergainabetterunderstandingofcommonparameterssuchassignal-to-noiseratio(SNR),signal-to-noise-and-distortion(SINAD),totalharmonicdistortion(THD)andspurious-freedynamicrange(SFDR).Inthesecondpartofthisarticleseries(see"DynamicTestingofHigh-SpeedADCs"forfurtherreading),theseparameterdefinitionsareputtothetestbymeasuringtheminreal-worldtestscenarios.Maxim>DesignSupport>TechnicalDocuments>Tutorials>A/DandD/AConversion/SamplingCircuits>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>Basestations/WirelessInfrastructure>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>High-SpeedSignalProcessing>APP728Keywords:ADCs,analogtodigital,analogdigital,converter,high-speedADC,high-speedanalogtodigitalconverters,SNR,SINAD,THD,SFDR,two-toneIMD,multi-toneIMD,VSWR,noise,harmonics,DFT,FFT,spectralleakageNov19,2001TUTORIAL728DefiningandTestingDynamicParametersinHigh-SpeedADCs,Part1Nov19,2001Abstract:Thefirstpartofthisa……

Abstract:Acommonviewholdsthatdigitalcircuitsjustworknaturally,butanalogcircuitsarehardtoimplement.Thereistruthtothatoldbelief—analoginterfaceisanexpertsubjectthatrequirestraining.Itis,moreover,alwaysbettertoavoidanissuethantotrytosolveitlater.Thisispreciselywhyweshouldtakeadvantageofsomebasicconceptsthatexperiencedanalogengineersperformasareflex.Thisapplicationnoteprovidessomebasicremindersandconceptsaboutamplifiersandfiltersforyoutoconsiderduringadesign.Maxim>Designsupport>Appnotes>A/DandD/AConversion/SamplingCircuits>APP4993Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4993Maxim>Designsupport>Appnotes>AnalogSwitchesandMultiplexers>APP4993Keywords:digitalpotentiometer,lowpassfilter,filter,low-passfilter,lowpassfilte,antialiasing,sampleddatasystem,folded,Nyquist,dataconverters,spectrum,harmonics,FFT,ADC,convolution,DAC,opamps,RC,LC,ButterworthMar08,2011APPLICATIONNOTE4993ReducetheChancesofHumanError:Part2,SuperAmpsandFiltersforAnalogInterfaceBy:BillLaumeister,StrategicApplicationsEngineerAb……

摘要：本系列文章的第一部分讨论了俗称的定义最适合高速数据转换器（模拟-数字转换器在这种情况下，或短的ADC）用于通讯，仪器仪表和数据采集应用的关键。这篇文章的目的是为了帮助读者获得更好地了解一个共同的参数，如信号噪声比（SNR），信号与噪声及失真比（SINAD），总谐波失真（THD）和杂散无动态范围（SFDR）。第二部分在本系列文章（见“进一步阅读”高速ADC动态测试），这些参数定义了考验，通过测量他们在现实世界中的测试场景。Maxim>DesignSupport>TechnicalDocuments>Tutorials>A/DandD/AConversion/SamplingCircuits>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>Basestations/WirelessInfrastructure>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>High-SpeedSignalProcessing>APP728Keywords:ADCs,analogtodigital,analogdigital,converter,high-speedADC,high-speedanalogtodigitalconverters,SNR,SINAD,THD,SFDR,two-toneIMD,multi-toneIMD,VSWR,noise,harmonics,DFT,FFT,spectralleakageNov19,2001TUTORIAL728DefiningandTestingDynamicParametersinHigh-SpeedADCs,Part1Nov19,2001Abstract:Thefirstpartofthisa……

摘要：本系列文章的第一部分讨论了俗称的定义最适合高速数据转换器（模拟-数字转换器在这种情况下，或短的ADC）用于通讯，仪器仪表和数据采集应用的关键。这篇文章的目的是为了帮助读者获得更好地了解一个共同的参数，如信号噪声比（SNR），信号与噪声及失真比（SINAD），总谐波失真（THD）和杂散无动态范围（SFDR）。第二部分在本系列文章（见“进一步阅读”高速ADC动态测试），这些参数定义了考验，通过测量他们在现实世界中的测试场景。Maxim>DesignSupport>TechnicalDocuments>Tutorials>A/DandD/AConversion/SamplingCircuits>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>Basestations/WirelessInfrastructure>APP728Maxim>DesignSupport>TechnicalDocuments>Tutorials>High-SpeedSignalProcessing>APP728Keywords:ADCs,analogtodigital,analogdigital,converter,high-speedADC,high-speedanalogtodigitalconverters,SNR,SINAD,THD,SFDR,two-toneIMD,multi-toneIMD,VSWR,noise,harmonics,DFT,FFT,spectralleakageNov19,2001TUTORIAL728DefiningandTestingDynamicParametersinHigh-SpeedADCs,Part1Nov19,2001Abstract:Thefirstpartofthisa……

摘要：本应用笔记讨论了一个计算引擎（CE）的代码，支持目前谐波电压，电流和功率信号测量。进行跟踪带通滤波器，其中心频率可编程的测量功能。从的宽带VARh计算的数字全通滤波器用于改善的VARh测量的频率响应。此CE的代码包含Teridian公司/马克西姆71M6531数据表中所述的标准CE代码的所有其他功能。71M6531AMaximIntegratedProductsBrandAPPLICATIONNOTEAN_6531_017MARCH2011CE31A06-HarmonicAnalysisIntroductionMaximisintroducinganewcomputeengine(CE)codethatsupportsmeasuringharmonicspresentonthevoltage,current,andthepowersignalstouseforanalysis.Themeasurementfunctionsareperformedbyatrackingband-passfilterwhosecenterfrequencyisprogrammable.AbroadbandVARhcalculationusingadigitalall-passfilterisutilizedinthisCEcodetoimprovethefrequency……

摘要：Teridian公司已开发自定义的计算引擎（CE）固件支持71M6513，3相电能计量芯片上系统（SoC）的高次谐波的存在，。本应用笔记介绍固件的多种功能，并讨论了71M6513的谐波性能。71M6513EnergyMeterICAMaximIntegratedProductsBrandAPPLICATIONNOTEAN_6513_028FEBRUARY200671M6513HarmonicPerformanceTeridianSemiconductorCorporationhasdevelopedacustomcomputeenginefirmwaretosupporttheenergymeteringinthepresenceofharmonics.Thecomputeenginefirmwarewasdevelopedtoprovidethefollowingcapabilities:1.MeasurementofWhinformationwithharmonicsandaseparateWhmeasurementregisterforfundamentalcomponent.Thesetwose……

摘要：本应用笔记讨论Teridian的自定义计算引擎（CE）的固件支持，71M6513，能源抄表系统芯片（SoC）中存在的谐波，3相。开发CE13B11固件提供宽带VARh测量能力和零延迟脉冲输出。71M6513EnergyMeterICAMaximIntegratedProductsBrandAPPLICATIONNOTEAN_6513_029FEBRUARY200671M6513BroadbandVARhHarmonicPerformanceTeridianSemiconductorCorporationhasdevelopedacustomcomputeenginefirmwaretosupporttheenergymeteringinthepresenceofharmonics.TheComputeEnginefirmwareCE13B11wasdevelopedtoprovidethefollowingcapabilities:1.BroadbandVARhmeasurementcapability2.Azero-late……

摘要：一种常见的观点认为，数字电路的工作只是自然，但模拟电路是很难实现的。有真相，旧的信仰模拟接口是一个专家的课题，需要培训。，而且，它总是更好，以避免一个问题，而不是试图解决以后。这正是为什么我们应该采取的一些基本概念，有经验的模拟设计工程师作为反射执行的优势。本应用笔记提供了一些基本的提醒有关放大器和滤波器为您和概念设计过程中考虑。Maxim>Designsupport>Appnotes>A/DandD/AConversion/SamplingCircuits>APP4993Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4993Maxim>Designsupport>Appnotes>AnalogSwitchesandMultiplexers>APP4993Keywords:digitalpotentiometer,lowpassfilter,filter,low-passfilter,lowpassfilte,antialiasing,sampleddatasystem,folded,Nyquist,dataconverters,spectrum,harmonics,FFT,ADC,convolution,DAC,opamps,RC,LC,ButterworthMar08,2011APPLICATIONNOTE4993ReducetheChancesofHumanError:Part2,SuperAmpsandFiltersforAnalogInterfaceBy:BillLaumeister,StrategicApplicationsEngineerAb……