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BLDCMBLDCMsmallsize,lightweight,ithasaDCmotorsimilartothegeneralgoodspeedperformance,withouttheexistenceofmachineryforthedevice,electromagneticinterferencenoiseandsmall,lowmaintenancerequirements,reliability,good;andasaresultofnotrequiredexcitationpower,efficiencyisrelativelyhigh,ithasbeenrapiddevelopment.AcompanybasedonADI'sADSP-21992chiphigh-speedbrushlessDCmotorcontrolsystem,whichhasahigh-speed,highloadmomentofinertia,havegreatermotorstartingtorquecharacteristics.DSP-basedmotorcontrolsystemwiththetraditionalsingle-chipmotorcontrolsystemandadedicatedchipmotorcontrolsystem,thatis,adedicatedmotorcontrolmechanisms,user-programmable,scalable,andpowerful,andsoon;atthesametime,overcometheirrespectiveshortcomings,suchasperipheralsandmemoryintegratedintothechiptoreducecircuitboardarea,reducingthenumberofsystemcomponentstoimprovetheCPUprocessingcapacity,improvesystemreliability.System,theultimateaimistheapplicationofhigh-speedflywheelsystembrushlessDCmotor,therefore,veryhighspeedprocessors,fromthereal-timeperformancetoconsider,Needtoselectthehighestpossibleprocessingspeedofthechip.2199xseriesandADI'sspeedreached160M,andthentoadapttotakeintoaccounttheirpoorworkingenvironment,inthispaper,wehavechosentheADSP-21992asacorecontrolchip.(A)hardware1.ControlcircuitMainlybythecontrolcircuitanditscorrespondingexternalADSP21992expansioncircuit.Includingthecrystaloscillatorcircuit,extendoutsidetheFLASH,JTAGinterface,powersupplyvoltageconversioncircuit,PWMinterface,1/0interfaceandA/Dinterfacecircuitmodules.ADSP21992forthe160Mhigh-performancemixed-signalDSPchips,thechipinadditiontoapowerfuldata-processingcapabilities,formotorcontrol,butalsotoprovide6-channelPWMoutput,8-channel14-bitA/Dconversionchannels,16general-purposeI/0I,aswellasthree32-bitdedicatedhardwareresources,suchascountingunit.2.PowercircuitDrivecircuitfromthedioderectifierbridge,filtercapacitorandtheIGBTinverterconstituted;drivecircuitusingIR'sI82130dedicatedMOspowerdevicegatedrivededicatedchip,thechipcannotonlyachie
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