Mainadvantages:

    1.Rawmaterialsandhardware:importedinternationalproducts

    Brand,software:developedbyourcompany.

    2.Protectionmeasures:overvoltage,overload,overheatingand

    Otherprotectionfunctions.

    3.Parameterscanbeadjustedbyprogrammer,applicabletodifferent

    Electricwheelchairofstructure.

    4.Thisproducthasforeigntradecertificate,i.e.EMCand

    FCC.

    5.ThefunctionofLEDdisplayscreencanbedisplayed

    Speed,gear,power,Bluetoothmode,fault

    Displayandsoon.

    6.ItcanberemotelycontrolledbyBluetooth.

    7.Thefunctionoffoldingpushrodisaddedforelectricwheel

    Electricfoldingofchair.

    AsingleDSPwithtwo-wayBLDCMisusedtocontrolthetwo-waymotordirectlythroughDSP,andthecurrentpositionfeedbacksignaloftwo-wayBLDCMissenttoDSP.DSPcalculatesthefeedbacksignalandpositiongivensignalfromsampling,andsendscorrespondingPWMwavetocontrolthethree-phaseinverter,andthencontrolsthemotoraction.

    Inthesystem,thetwo-wayBLDCMisacentralizedwholeforDSP,whichobtainsdataandfeedsbackdata.Inthesystem,theprocessingoftwo-wayBLDCMinformationissometimesindependentofeachother,soithasrelativelyindependentsoftwareandhardwaresystem.Inaddition,thecontrolperformanceandeffectofeachchannelarealmostthesame,soitcanbeinterchangedwithoutaffectingthecontrolperformance.

    KeyboardanddisplaycomponentsaredirectlyconnectedwithDSP,thereisnoproblemofsignalinterferenceinthetransmissionprocess.Atthesametime,eachstageofthesystemcanbedirectlycontrolledbykeyboard,anddirectlyreflectedonthedisplaycomponents.

    Thehallsensorofthemotorsendstherotorpositionofthemotortothecaptureunit(CAP)oftheDSPwiththreehighandlowlevelsignals,andthencompareswiththephasechangetabletocontroltheopeningandclosingofthepowertubeofthethree-phaseinverter,soastomatchthepositionoftherotor.

    Inaddition,thesystemtakesthesampledphasevoltagesignalasthepowerprotectionsignalandsendsitdirectlytothepowerprotectionpinofDSPafterthelevelconversion.Whenthereisalowpowerlevel,thepowerprotectionofDSPwillbeinterrupted,andtheDSPwillblockthePWMwaveofthecorrespondingpath.

    ThePWMwavefromDSPisisolatedbyoptocouplerandsenttothepowerdriverchip.Afterpoweramplification,itissenttothegridandsourcepoleofthethree-phaseinverterpowertubetocontroltheswitchingactionofthepowertube.