基于89C2051单片机控制的可控硅调速电路设计-孙士平

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 第24卷第4期上海电力学院学报Vol.24,No.4 200812Journal of Shanghai University of Electric PowerDec. 2008  :1006-4729(2008)04-0374-0389C2051  :2008-09-17:(1968-),,,..E-mail:sunshiping@126.com.:(2003Z0931).1,2,1(1., 434023;2., 200941) :、、,89C2051,.,,,.:;;89C2051;:TP368.2   :ADesigningofSCRSpeedControlCircuitBasedon89C2051MCUSUNShi-ping1,CHENWen-sheng2,LIDan-qin1(1.ElectronicsInformationCollegeofYangtzeUniversity,Jingzhou 434023,China;2.ShanghaiBaoyeConstructionCo.Ltd.,Shanghai 200941,China)Abstract: Inordertoeliminatetheshortcomingssuchashighcost,poorflexibility,andcomplexsystemsofthetraditionalmotorspeedcontrolsystem,adesignwith89C2051MCUtocontrolthyristorisusedtomotorspeedcircuittoaccomplishthepurposesofflexibilitycontrolandspeedindication.SCRistriggeredbythewayofzerotrigger,andthemaincircuitisharmonizedbysoftwareandhardware,sothesystemhastheadvantagesofsimplicity,easydetectionandmaintenance.Keywords: speedcontrol;SCR;89C2051MCU;zerotrigger  ,,.,,.,,.,、.、、、、、,,..,、、.,、、、、,、(PWM)、(SPWM),.1   ,,;,.1.1   1,,.,.(),,,:;.,,.,,,..n0,k,s,n,n=ksn0(1).2 2.2 89C2051  89C2051,220V,;;..:,D1,T1,V0;,D1,T1,V0.,,D2,T2,V0,D2,T2,V0.89C2051INT0,,.3.3   ,,,375             ,:89C2051INT1,.EEPROM,.MOC3052,,.4.4 3   ,,(),.INT0,,N(N),1,N1.N≠0,“1”,;N=0,“0”,,.,,,.[6].4 89C2051,,,.,,.,,.,、,.,,;,,,,,.:[1] .[M].:,2003:126-138.[2] ,.MCS-51[M].:,2001:253-259.[3] .[J].:,2007.[4] ,.[M].:,2003:185-193.[5] .[M].:,2004:97-101.[6] .:8[M].:,2000:533-535.376                      2008

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