标签: FAN

LeadLagExhaustFanControl

DynamixMachineProfileforMotorandFan

LTC1695为手持式设备提高了电池运行时间，降低了听觉噪音。同时通过控制降温风扇为系统提供了极为重要的性能的保护特性。采用SOT-23封装，易于通过SMBus总线接口进行编程。advertisementSOT-23SMBusFanSpeedControllerExtendsBatteryLifeandReducesNoise……

LTC1695可为手持式设备提高电池运行的时间，减少听觉噪声。另外，它可提高提供重要的性能和保护特性来控制设备工作的降温风扇。advertisementSOT-23SMBusFanSpeedControllerExtendsBatteryLifeandReducesNoise……

LTC1840是一款双路风扇速度控制器，可应用于服务器和其他基于RACK的网络和电信设备。可提供高级控制和监控能力，通过I2C和SMBUS兼容的2线串行接口进行控制。advertisementNewChargePumpsOfferLowInputandOutputNoiseDesignNote243SamNorkChargepump(inductorless)DC/DCconvertersarequitepopularinspace-constrainedapplicationswherelowtomoderateloadcurrentsmustbesupplied.Suchconvert-ersareavailableinsmallpackages,operatewithverylowVOUTquiescentcurrentandrequireminimalexternalcompo-ACCOUPLED50mV/DIVnents.However,noisegenerationisoneundesirablecharacteristicofmostchargepumps.Unwantednoisecancreateavarietyofproblems.NoisegeneratedatthepowerinputcaninterferewithRFtrans-VIN=3V5s/DIVDN243……

IntroductionWithitsnumerousfeatures,theMAXQ2000cancreateamultitudeofusefulapplications,suchascontrollingafan'sspeedbypulsewidthmodulation(PWM).AmongthemanyfeaturesoftheMAXQ2000areitstimerwithPWMandSerialPeripheralInterface(SPI™)and1-Wire®capabilities.ThisapplicationnotedescribeshowtheMAXQ2000canbeusedtodriveafanandchangeitsspeed,inrealtime,byPWM.ThisprocessrequirestheuseofanotherMaximproduct,theMAX1407multichanneldata-acquisitionsystem(DAS).UsingSPI,theMAXQ2000cancommunicatewiththeMAX1407(containinga16-bitanalog-to-digitalconverter[ADC]anddigital-to-analogconverter[DAC]).Asanalternativetousingathermistor,theMAXQ2000's1-WirebusmastercanbeusedinconjunctionwithatemperatureiButton(DS1920).Thesourcecodeusedinthisapplicationnoteisavailablefordownload.Temperature-BasedFanControlUsingtheMAXQ2000MicrocontrollerSep16,2005Abstract:ThisapplicationnotedescribeshowtouseaMAXQ2000microcontrollertocontrolDCfanspeedandmonitortemperaturefromathermistororiButton.IntroductionWithitsnumerousfeatures,theMAXQ2000cancreateamultitudeofusefulapplications,suchascontrollingafan'sspeedbypulsewidthmodulation(PWM).AmongthemanyfeaturesoftheMAXQ2000areitstimerwithPWMandSerialPeripheralInterface(SPI)and1-Wirecapabilities.ThisapplicationnotedescribeshowtheMAXQ2000canbeusedtodriveafanandchangeitsspeed,inrealtime,byPWM.ThisprocessrequirestheuseofanotherMaximproduct,theMAX1407multichanneldata-acquisitionsystem(DAS).UsingSPI,theMAXQ2000cancommunica……

本文介绍了采用P89LPC917控制五个风扇的控制器的设计AN10388ApplicationofP89LPC917infive-fancontrolsystemRev.02―07December2005ApplicationnoteDocumentinformationInfoContentKeywordsFancontroller,MCU,D/Cbrushlessmotor,P89LPC917AbstractThearticledescribesthedesignofthefancontroller,whichadoptsP89LPC917designtocontrolfivefans.Thecontrollermayindependentlyorsimultaneouslycontroltheoperationofseveralfansaccordingtotheenvironmentaltemperature,promisingtoprovideintelligentandflexibleresponsivecontrolovertheabnormalityofmultiplekindsofoperation.ThePWMandADfunctions……

摘要：线性电路测量温度，并控制产生可变电源电压为风扇冷却风扇的速度。Maxim>AppNotes>AUTOMOTIVETEMPERATURESENSORSandTHERMALMANAGEMENTKeywords:analog,fanspeedcontrol,temperaturesensor,fancontroller,thermalmanagementJun26,2002APPLICATIONNOTE1125CircuitGeneratesAnalogFan-SpeedControlAbstract:Alinearcircuitmeasurestemperatureandcontrolsthespeedofacoolingfanbygeneratingavariablesupplyvoltageforthefan.Fannoiseisbecomingalargerissueasmoreelectronicequipmententerstheofficeandthehome.Avariablespeedfanpermitsslower,andquieter,fanspeedwhentemperatureconditionsallow.Fan-controlcircuitsrangefromsimpleswitchesthatboostthefanspeedatacertaintemperature,todigitallycontrolledfanswithcontinuously-variablespeed.High-speed/low-speedswitchesareinexpen……

摘要：DS3930包含6个256位的非易失性电位器，使DS3930需要多个电压基准的应用的理想设备。DS3930还具有四个通用，非易失性I/O引脚可以监视数字输入或提供一个数字输出。本应用笔记提供的例子使用的DS3930作为一个参考电压和数字I/OMaxim>AppNotes>DIGITALPOTENTIOMETERSKeywords:DS3930,potentiometer,non-volatile,nonvolatile,voltagereference,digitalI/O,LCD,fan,Jun25,2003photodiode,comparator,pressuresensorAPPLICATIONNOTE2140ExamplesUsingtheDS3930asVoltageReferencesandDigitalI/OAbstract:TheDS3930containssix256-positionnonvolatilepotentiometers,whichmakestheDS3930anidealdeviceforapplicationsneedingmultiplevoltagereferences.TheDS3930alsohasfourgeneral-purpose,nonvolatileI/Opinsthatcanmonitoradigitalinputorsupplyadigitaloutput.ThisapplicationnoteprovidesexamplesusingtheDS3930asavoltagereferenceanddigitalI/O.IntroductionTheDS3930containssix256-positionnonvolatile(NV)potentiometers(seeFigure1),whichmakestheDS393……

摘要：DS1050是一个5位的脉冲宽度调制（PWM）由2线总线控制。这允许一个主设备，一个单一的2线总线控制多达8奴隶（DS1050和其他2线设备）。本应用笔记中，演示了通过PC机的串行接口2线总线接口。硬件和软件的要求，并给出从DallasSemiconductor的FTP站点下载。Maxim>AppNotes>DigitalPotentiometersDisplayDriversPower-SupplyCircuitsKeywords:fancontrol,fanspeed,brightnesscontrol,contrastcontrol,2wirebus,2wiredevices,PWM,pulseDec17,2001widthmodulator,dcmotor,LCDLEDbacklightAPPLICATIONNOTE163UsingDS1050ProgrammablePWMstoControlaDCMotorandanLCDLEDBacklightAbstract:TheDS1050isa5-bitpulse-widthmodulator(PWM)controlledbya2-wirebus.Thisallowsasinglemasterdevicetocontrolupto8slave(DS1050andother2-wiredevices)onasingle2-wirebus.Inthisapplicationnote,aninterfacetoa2-wirebusviaaPCserialinterfaceisdemonstrated.ThehardwareandsoftwarerequirementsaregivenandavailablefordownloadfromtheDallasSemiconductorFTPsite.IntroductionTheD……

摘要：DS1050是由2线总线控制5位脉冲宽度调制器(PWM)。这允许单个主机设备来控制达8奴隶（DS1050和其他2线设备）单2线公共汽车上。在此应用程序的说明，这表明2线公共汽车通过PC串行接口的接口。给定和从达拉斯半导体FTP站点下载可用的硬件和软件要求。Maxim>AppNotes>DigitalPotentiometersDisplayDriversPower-SupplyCircuitsKeywords:fancontrol,fanspeed,brightnesscontrol,contrastcontrol,2wirebus,2wiredevices,PWM,pulseDec17,2001widthmodulator,dcmotor,LCDLEDbacklightAPPLICATIONNOTE163UsingDS1050ProgrammablePWMstoControlaDCMotorandanLCDLEDBacklightAbstract:TheDS1050isa5-bitpulse-widthmodulator(PWM)controlledbya2-wirebus.Thisallowsasinglemasterdevicetocontrolupto8slave(DS1050andother2-wiredevices)onasingle2-wirebus.Inthisapplicationnote,aninterfacetoa2-wirebusviaaPCserialinterfaceisdemonstrated.ThehardwareandsoftwarerequirementsaregivenandavailablefordownloadfromtheDallasSemiconductorFTPsite.IntroductionTheD……