14--DZT高频开关电源整流模块说明书

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1、DZT4810/4820InstructionManualDZT4810/4820HighFrequencySwitchPowerRegulationModuleInstructionManualGKA2.939.073/074SSTelecommunicationsCompanyofJiangsuHongtuHigh-techCo.,Ltd.9TelecommunicationsCompanyofJiangsuHongtuHigh-techCo.,Ltd.DZT4810/4820InstructionManual1IntroductionWithoptimizedcomputer-ai

2、deddesign,DZTserieshighfrequencyswitchpowerregulationmoduleisbasicpowersupplyequipmentfortelecommunicationinstallations.Themoduleisavailableintwotypes-DZT4810(currentoutput-10A)andDZT4820(currentoutput-20A).WiththeuseofhighfrequencyPWMtechnology(300kHzclock),itcontainsuniqueparallelconnectioncurr

3、ent-sharingtechniqueandcompletedatainterfaces,andrealizesthefunctionsofautomaticcurrentsharing,faultisolation,remotecurrentlimitingandremotecontrol.Themoduleismainlyequippedforprogramcontrolledexchange,microwave,opticfiberandmobiletelecomdevices.Itmaywellbeusedaselectricchargerforstoragebatteries

4、.Itislightandsmallandithashighreliabilityandgoodvoltagestabilizingperformances.2OperatingPrincipleandMainPerformanceProperties2.1OperatingPrincipleSeeFig.1fortheschematicdiagramofDZT4810/4820module.Single-phasealternatingcurrentfirstcomesintopeaksuppressingandEM1filtercircuit.Thecircuithastwofunc

5、tions:1.Protectthemodulefrompossiblehazardsofvoltagepeakscausedbyswitchingoperationsofpowerloadsorlightninginthepowernetwork;2.Preventthenoisevoltageandreversecurrentproducedinthehighfrequencyswitchinthemodule.Fig.1SchematicDiagramofDZT4810/4820ModuleMaincontrolunitassumesthefunctionsofinputvolta

6、gecontrol,Pulse-WidthModulation,andthecontrolofoutputvoltage,outputcurrentandbatteryinterface.Theunitprocessesthevaluesofoutputvoltageandcurrentsampleandsendsthemtothedisplayunit.AllthetechnicalspecificationsoftheDZT4810/4820modulecomplywiththerequirementsofYD/T731-2002.TheserialnumberofitsNetwor

7、kAccessLicenseissuedbyMinistryofInformationIndustryis25-4819-011458.9TelecommunicationsCompanyofJiangsuHongtuHigh-techCo.,Ltd.DZT4810/4820InstructionManual2.2MainPerformanceSpecifications——ACinput:Ratedsinglephaseinput