标签: 三相功率模块

ThedsPICDEMMC1L3-PhaseLowVoltagePowerModuleisintendedtoaidtheuserintherapidevaluationanddevelopmentofawidevarietyoflowvoltageDCmotorcontrolapplicationsusingthedsPIC®microcontroller.ThedesignofthesystemincludesseveralMicrochipanalogcomponents,aswellasaPIC®microcontrollerusedtoprovideisolatedvoltagefeedback.ThemaincomponentsofthesystemareshowninFigure1-1.Theunitiscapableofoperatingfromanyvoltageuptoamaximumof48V(average)and58V(peak).Itisthereforesuitableforuseonaverywiderangeofapplications.Theseincludeconventionalcommercialandindustrialapplicationsrunningoffupto48VDCsupplies,aswellasautomotiveapplicationsincludingthenew42Vbusstandard.ProtectionisprovidedforaccidentalreverseconnectionoftheDCinput,aswellasformotorandwiringshortcircuits.Thecontinuousratedinputcurrentis15A(RMS).Thecontinuousratedoutputcurrentfromtheinverterisalso15A(RMS).Thisresultsinthemaximumoutputpowerbeinglinearlyrelatedtotheinputvoltage.Approximately400VA/300Woutputmaybeachievedwhenrunningfroma24DCinputvoltageuptoa30°C(85F)ambient.Thus,thesystemisideallysuitedtorunningquitelarge3-phasebrushlessDCmotorsorspecialistinductionmachineswoundforoperationatlowvoltage.Thepowermoduleiscapableofdrivingothertypesofmotorsandelectricalloadsthatdonotexceedthemaximumpowerlimitandarepredominantlyinductive.Furthermore,single-phaseloadscanbedrivenusing1or2oftheinverteroutputs.dsPICDEMMC1L3-PhaseLowVoltagePowerModuleUser’sGuide2003MicrochipTechnologyInc.DS70097ANotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowledge,requireusing……