采用Si9979的无刷直流电动机驱动电路设计.pdf

l:2002-09-17:2002-12-27Si9979z!9何平,金明河,刘宏(哈尔滨工业大学,哈尔滨150001)TheDesignandDevelopmentofBrushlessDCMotorDrivingCircuitBasedonSi9979HEPing,JINMing-he,LIUHong(HarbinInstituteofTechnology,Harbin150001,China)K1:BSi9979aFPGADSPmzdbSi9979a1a；MOSFETzFzVzbW1pb!9R-C,zZ_yMH3H,zdVLb1oM:z；Si9979；RCms|:TM33DSM:AcI|:1004-7018(2003)03-0032-03Abstract:AnoveldrivingsystembasedonSi9979,FPGAandDSPisdevelopedinourlab.Si9979circuitrythatintegratesSi9979controller,comparatorcircuitry,optocouplercircuitryandpowerelectronicstogetherarebrieflydescribedinthispaper.Theresultsprovethatthedesigncanmeettherequirements.Toin-surereliableperformanceoftheSi9979drivecircuitry,asnubbernetworkisdesignedtocontrolthevoltagetransientsinthefastswitchingapplications.Keywords:BLDCMdrivingsystem；Si9979；RCsnubbernet-work1_2Fm.l8bWmz!94j1p,YVm!9hlz84m2F?X1ob.dMz8v,iO1zMOSFET,15VHzb7Si9979Te,=MOSFETzPVzNMB,H7mmSQFP,Vezihlj,1bSi9979e4e|a3_azBt?bSi9979e|,PWMaZ_|,TTLYiYV=EVDDb:.4:|YVSi9979=3_,V7LC(_b_Si9979e|YV=836az|,V7ebSi9979=4Ka41,iOBf?3HpU|1b1Si9979z#,RC,ie1FPGADSPb2zdzdsF:Si9979zaFPGAY#DSP)ebm!9,4ded.,8Y16/AD7888LC|/,P:.E|)$13|,t|YVFPGALC.bHDSPYVFPGAe|.Si9979eLCebzdm1Ubm1zdF2.1Si9979zz!9,_aaF#z!9AInbm1iB%1,12Fm.d%,1.0b2Fm8m(H,1/+Tb/.t/|,YVAD788813|,TedQbDSP32+2003M3Dzeriveandcontrolet|)3PWMaZ_e|,YVFPGA.Si9979z,LCzbSi9979z?m2Ubm2Si9979Tmzq,=:.,:|bSi9979t:|3_,LC(_bSi9979=M13,yN:|1Si9979-TTLYZo|bLMV3391V1p,m2Ub:.|LC_,6B1?90V7YVs1b:.&sOq,71.|Mv.2,yNze:|1TedQb:i|V90,0:|/1:He=arctg(-32Ha)/(Ha+Hb2)T:HaaHbi:|,He0bd,!93.3V,H:.E|,7Si99791p|TTLY,3|,yN；P1Si9979TTL|7,m2U,d!9F?46:Zo|1pbMBMBNMOSFETzbNMOSFET,POW-ERTrend)/PhlMOSFETYHErdsHV71M?,7OSOT-6Vzj1pbMOSFETV$Si9979|z,|Si9979=YVEVDDbMOSFET?$Si9979z,Si9979|YV=zMOSFETbBMOSFETY,7SiYHVDD,MOSFETH,VzMOSFETb2.2Si9979?VET#zsbt?Ka4#MY,HSi9979VBf?3HFAULT|Usf?31bSi9979az|MMOSFETY,MOSFETaHY,Si9979zBMOSFETe|,6/AiBHW,/u0,VMOSFETY?3bSi9979YV=/Y-103|WHWW,VPBMOSFETa1aYMH3250nsHbSi9979=VSVDD,VrzMOSFET,44bMOSFET71MHPSi9979VDD3o,VDD16V,1B1LFVDDW1MOSFETYH?34f,HK(m3U)F#z&91bYVFTV?s-,PF6/b4B_ERs,?YVwF,ESi9979=1!100mV1-SbVvH,K1YMOS-FETBHW,HWRC%b-,MOSFETYbm3K2.3yM,ivH,Hz,V7Y?bHY!9Vjb!9VL,HA$KBS=PTMOSFETTS=bMOS-FET%8=5WMHW3H,HL#37393H1yBbMOSFETB71MMF33Si9979z!9DzeriveandcontrolZ_M,q+VH3vHbHVMOSFETTuH/MOSFETbN,!9RChlHY,VMMhlH,m4UbVMOSFETMy7EVMOSFETYHKVMOSFETvl2bRaC4A/1:Rmax=Vsmin/IpeakC=Ipeak(dt/dv)=Ipeak(Trmax/Vsmax)T:Vsmin-Kl；Vsmax-Kv；Ipeak-FKv；Trmax-MOSFETPYHWb73#,T4,o,m4Ubm43FPGADSPLC2Fme,Ayeb1ped?4e|,Hd?2FmTBti),t|a/#.b16AD7888.E|13|,YVFPGAt|iLCDSPY,HDSPYVFPGAYe|.zbm5USi9979zmm,mz3565mm2PCB,z,Hzbm5mm4zSi9979zbzd1FPGA|Y#DSP)eFbSi9979z1pHq/vv.dz8,HBt(Ka4)4z?b4zVL,RC3H,LVPMOS-FETBTMOSFETTu=bID:1WhartonMcDaniel.ACompactControllerforBrushlessDCmotorR.VishaySiliconix,Number:70585.2ThomasL.Hopkins.ControllingVoltageTransientsinFullBridgeDriverApplicationR.ApplicationNoteofSGS-ThomsonMicro-electronics.PartNumber:AN280/0189,1995.3DavidLeggate,RusselJ.Kerkman.PulseBasedDeadTimeCom-pensatorforPWMVoltageInverters.IEEEIndustrialElectronicsConference(IECON)C,Orland,1995,474-481.4RobertFried.GENFETTMSafeOperatingAreaandMaximumRat-ingsR.ApplicationNoteofVishaySemiconductor,PartNumber:71934,2001.5L6202-L6203DMOSFullBridgeDriverR.SGS-ThomsonMicroelectronics.PartNumber:1373,1997.Te:(1976-),3,pV3,5mxe,B8/b(1970-),3,pV,5/,B8/b(1963-),3,/90+q,5db(31:)4,.2Mz!9sJ.2；,2000,22(6).5；,b,；.zeJ.2；,2001,23(6).6；,f,uu.2LeJ.2；,2002,24(1).7