一种超声波电源的频率搜索与跟踪系统的设计-(1)

#2354#.2010.18(10)ComputerMeasurement&Controlchinamca.com:2010-04-02;:2010-05-10:(2008RFQXG108):(1970-),,,,,:1671-4598(2010)10-2354-03:TN86;TB559:A张继东(,150050):,,,;,,,,,;:;;;DesignofFrequencySearchingandTrackingSystemonUltrasonicPowerSupplyZhangJidong(DepartmentofElectronicEngineering,HeilongjiangInstituteofTechnology,Harbin150050,China)Abstract:Traditionally,therearemanyweaknessesinthesinglephasemethodorcurrentfeedbackmethodagainstthefrequencydriftproblemduringthemultimodalultrasonicvibrationsystemoperation,suchasthenarrowscaleoffrequencysearchingandweakdependabil-ity.Inordertosolvethedifficultyofthefrequencytrackingandsearchinginthemultimodalultrasonicvibrationsystem,thepaperstudiedthephaserelationsofcurrentandvoltage,thechangetendencyandthevalueofcurrentonmultimodalultrasonicvibrator,thentherelationsa-mongthem.Onthisbasis,thecombinationcontrolmethodwithdoubleparametersofphaseandcurrentwasestablished,andthecorrespond-ingcontrolalgorithmandcircuitsystemweredesigned.Theexperimentoffrequencysearchingandtrackinghasbeendoneontheself-madeultrasonicplasticweldingpowersupply.Theexperimentalresultsshowthatthemethodoffrequencytrackingandsearchingwithdoublepa-rametersisvalid.Keywords:frequencytracking;frequencysearching;multimodalcharacteristic;ultrasonicvibrator0,,,,,,,,,,,,1,,[1],,,,,,,,,[2]1-,,,11-1lkjdkjdc,,1DK,,10:#2355#chinamca.com,,cl,,,,,242,,,,,1,CLCL,?,,[3],,,lk,jd,;dc,,kj,,,,,,23311,,3,:,,,,,,,))),,I/O,I/O,2,PWM,,,,33124,))):220VAC/50Hz;fo:20kHz?500Hz;Po:50W~2kW31211,#2356#18chinamca.com,[4],,,,,,,,,,,KT10A/P,:0~15A;0~100mA;013%;1Ls;?15V(?5%);?014mAR3=508R1=390k/2W,R2=516k/015W,,LM35831212,,,/0,LM339MUR420,;/0CD4093,31213CD4013D[5],Du1,CLKu2,u1u2Q,31214:,:,,AVRAT-mega16AVR8,8,8,,)))PWMADC,I/O[6],,AVR,4,40uif,16,1819PWM,,,,4,,,uHiH,55,20kHz,2014kHz,,,55,,,,,:[1],.[J].,2005,22(12):11-12.[2],.[J].,1997,16(1):36-38.[3].[J].,2001,20(3):1-5.[4].[D].:,2002.[5],.[J].,2005,192(9):41-42.[6].AVR[M].:,2008.