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1、DZT4810/4820High-frequencySwitchPowerRectifyingModuleInstructionManualGKA2.939.073/074SSTelecommunicationsCompanyofJiangsuHongtuHigh-techCo.,Ltd.101.INTRODUCTIONDZTserialhigh-frequencyswitchpowerrectifyingmoduleisaessentialcommunicationpowerofcomputeriz
2、eddesign.TherearetwotypesofDZT4810(outputcurrent10A)andDZT4820(outputcurrent20A)inDZThigh-frequencyserialswitchpowerrectifyingmodule.Withbeingbasedonhigh-frequencyPWMtechnology(300khzclock),ithavetheindependentshuntingandequalizingfunctionandperfectdate
3、interface,therebyrealizingtheautomaticequalizingcharge,faultdisconnection,remoterestrictioncurrentandremotecontrol.Itiswidelyusedinlargeprogrammableexchanges,radiowave,lightwavefiber,mobilecommunicationandotherequipment,sharingcharging-battery.Itholdssm
4、all-volume,light-weight,high-dependability,well-stabilityandotherfeatures.2.Workingprinciplesandmainperformancespecifications2.1WorkingprinciplesTheprinciplediagramofDZT4810/4820high-frequencyswitchpowerrectifyingmoduleisshownasFig.1.ThesinglephaseACcur
5、rentfirstentersinthepeaksuppressionandEM1carrierwavecircuit,whichhastwofunctions:oneistopreventthepeakloadcausedbytheswitchon/offoftheloadandlighteningdamagingtherectifyingmoduleinthecommercialpowernetwork,theotheristopreventtheinterferencevoltageandcur
6、rentcausedbythehigh-frequencyswitchesinsidetherectifyingmodulereturningtothepowernetwork.Fig.1PrinciplediagramofDZT4810/4820high-frequencyswitchpowerrectifyingmoduleThemaincontrolunitcarriesouttheinputvoltagecontrol,pulsewidthmodulation,outputvoltageand
7、currentcontrolandbatteryinterfacecontrol.Atthesametime,ittransmittedtheprocessedsamplevaluesofoutputvoltageandcurrenttothedisplay10unit.AlltechnicalspecificationsofDZT4810/4820high-frequencyswitchpowerrectifyingmodulecomplywithrecommendationYD/T731-2002
8、.Thereisaentrancecertificationofindustrydepartment(CertificateNumber:25-4819-011458).2.2Mainperformancespecifications1)ACinput:Singlephaseinputratedvoltage:AC220V50HZInputvoltagechangingrange:AC175V~265VInputcurrent:8A(underDC48V
