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DemonstrationSystemEPC9114QuickStartGuideEPC2107andEPC20366.
78MHz,ZVSClass-DWirelessPowerSystem2||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016DESCRIPTIONTheEPC9114wirelesspowerdemonstrationsystemisahighefficiency,A4WPcompatible,ZeroVoltageSwitching(ZVS),VoltageModeclass-Dwirelesspowertransferdemonstrationkitcapableofdeliveringupto10WintoaDCloadwhileoperatingat6.
78MHz(LowestISMband).
ThepurposeofthisdemonstrationsystemistosimplifytheevaluationprocessofwirelesspowertechnologyusingeGaNFETs.
TheEPC9114wirelesspowersystemcomprisesthethreeboards(showninFigure1)namely:1)ASourceBoard(TransmitterorPowerAmplifier)EPC95102)AClass2A4WPcompliantSourceCoil(TransmitCoil)3)ACategory3A4WPcompliantDeviceCoilwithrectifierandDCsmoothingcapacitor.
Theamplifierboardfeaturestheenhancement-modehalf-bridgefieldeffecttransistor(FET),the100VratedEPC2107eGaNFETwithintegratedsynchronousbootstrapFET.
Theamplifierisconfiguredforsingleendedoperationandincludesthegatedriver/s,oscillator,andfeedbackcontrollerforthepre-regulatorthatensuresoperationforwirelesspowercontrolbasedontheA4WPstandard.
ThisallowsfortestingcomplianttotheA4WPclass2standardovertheentireloadrangeof±35jΩ.
Thepre-regulatorfeaturesthe100Vrated65mΩEPC2036asthemainswitchingdeviceforaSEPICconverter.
Theamplifierisequippedwithapre-regulatorcontrollerthatadjuststhevoltagesuppliedtotheZVSclassDamplifierbasedonthelimitsof3parameters;coilcurrent,DCpowerdeliveredandmaximumvoltage.
Thecoilcurrenthasthelowestpriorityfollowedbythepowerdeliveredwiththeamplifiersupplyvoltagehavingthehighestpriority.
Changesinthedeviceloadpowerdemand,physicalplacementofthedeviceonthesourcecoilandotherfactorssuchasmetalobjectsinproximitytothesourcecoilallcontributetovariationsincoilcurrent,DCpowerandamplifiervoltagerequirements.
Underanyconditions,thecontrollerwillensurethecorrectoperatingconditionsfortheZVSclassDamplifierbasedontheA4WPstandard.
Thepre-regulatorcanbebypassedtoallowtestingwithcustomcontrolhardware.
Theboardfurtherallowseasyaccesstocriticalmeasurementnodesthatallowaccuratepowermeasurementinstrumentationhookup.
AsimplifieddiagramoftheamplifierboardisgiveninFigure2.
TheSourceandDeviceCoilsareAllianceforWirelessPower(A4WP)compliantandhavebeenpre-tunedtooperateat6.
78MHzwiththeEPC9510amplifier.
ThesourcecoilisClass2andthedevicecoilisCategory3compliant.
ThedeviceboardincludesahighfrequencyschottkydiodebasedfullbridgerectifierandoutputfiltertodeliverafilteredunregulatedDCvoltage.
ThedeviceboardcomesequippedwithtwoLED's,onegreentoindicatethepowerisbeingreceivedwithanoutputvoltageequalorgreaterthan4VandasecondredLEDthatindicatesthattheoutputvoltagehasreachedthemaximumandisabove37V.
FormoreinformationontheEPC2107andEPC2036eGaNFETspleaserefertothedatasheetavailablefromEPCatwww.
epc-co.
com.
Thedatasheetshouldbereadinconjunctionwiththisquickstartguide.
TheSourcecoilusedinthiswirelesspowertransferdemosystemisprovidedbyNuCurrent(nucurrent.
com).
ReverseEngineeringoftheSourcecoilisprohibitedandprotectedbymultipleUSandinternationalpatents.
Foradditionalinformationonthesourcecoil,pleasecontactNuCurrentdirectorEPCforcontactinformation.
MECHANICALASSEMBLYTheassemblyoftheEPC9114WirelessDemonstrationkitissimpleandshowninFigure1.
ThesourcecoilandamplifierhavebeenequippedwithSMAconnectors.
Thesourcecoilissimplyconnectedtotheamplifier.
Thedeviceboarddoesnotneedtobemechanicallyattachedtothesourcecoil.
DETAILEDDESCRIPTIONTheAmplifierBoard(EPC9510)Figure2showsthesystemblockdiagramoftheEPC9510ZVSclass-Damplifierwithpre-regulatorandFigure3showsthedetailsoftheZVSclass-Damplifiersection.
Thepre-regulatorisusedtocontroltheZVSclass-Dwirelesspoweramplifierbasedonthreefeedbackparameters1)themagnitudeofthecoilcurrentindicatedbythegreenLED,2)theDCpowerdrawnbytheamplifierindicatedbytheyellowLEDand3)amaximumsupplyvoltagetotheamplifierindicatedbytheredLED.
Onlyoneparameteratanytimeisusedtocontrolthepre-regulatorwiththehighestprioritybeingthemaximumvoltagesuppliedtotheamplifierfollowedbythepowerdeliveredtotheamplifierandlastlythemagnitudeofthecoilcurrent.
Themaximumamplifiersupplyvoltageispre-setto66Vandthemaximumpowerdrawnbytheamplifierispre-setto10W.
Thecoilcurrentmagnitudeispre-setto580mARMS,butcanbemadeadjustableusingP25.
Thepre-regulatorcomprisesaSEPICconverterthatcanoperateatfullpowerfrom17Vthrough24V.
50mm80mmAmplierBoardSourceCoilDeviceBoard150mm103mm57mm47mmFigure1:EPC9114DemonstrationSystemEPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||3Thepre-regulatorcanbebypassedbyconnectingthepositivesupplydirectlytotheZVSclass-DamplifiersupplyafterremovingthejumperatlocationJP1andconnectingthemainpositivesupplytothebottompin.
JP1canalsoberemovedandreplacedwithaDCammetertodirectlymeasurethecurrentdrawnbytheamplifier.
Whendoingthisobservealowimpedanceconnectiontoensurecontinuedstableoperationofthecontroller.
TogetherwiththeKelvinvoltageprobes(TP1andTP2)connectedtotheamplifiersupply,anaccuratemeasurementofthepowerdrawnbytheamplifiercanbemade.
TheEPC9510isalsoprovidedwithaminiaturehighefficiencyswitch-mode5Vsupplytopowerthelogiccircuitsonboardsuchasthegatedriversandoscillator.
Theamplifiercomeswithitsownlowsupplycurrentoscillatorthatispre-programmedto6.
78MHz±678Hz.
ItcanbedisabledbyplacingajumperintoJP70orcanbeexternallyshutdownusinganexternallycontrolledopencollector/draintransistorontheterminalsofJP70(notewhichisthegroundconnection).
Theswitchneedstobecapableofsinkingatleast25mA.
AnexternaloscillatorcanbeusedinsteadoftheinternaloscillatorwhenconnectedtoJ70(notewhichisthegroundconnection)andthejumper(JP71)isremoved.
Thepre-regulatorcanalsobedisabledinasimilarmannerastheoscillatorusingJP50.
However,notethatthisconnectionisfloatingwithrespecttothegroundsoremovingthejumperforexternalconnectionrequiresafloatingswitchtocorrectlycontrolthisfunction.
RefertothedatasheetofthecontrollerICandtheschematicinthisQSGforspecificdetails.
TheEPC9510isprovidedwith3LED'sthatindicatethemodeofoperationofthesystem.
Ifthesystemisoperatingincoilcurrentlimitmode,thenthegreenLEDwillilluminate.
Forpowerlimitmode,theyellowLEDwillilluminate.
Finally,whenthepre-regulatorreachesmaximumoutputvoltagetheredLEDwillilluminateindicatingthatthesystemisnolongerA4WPcompliantastheloadimpedanceistoohighfortheamplifiertodrive.
Whentheloadimpedanceistoohightoreachpowerlimitorvoltagelimitmode,thenthecurrentlimitLEDwillilluminateincorrectlyindicatingcurrentlimitmode.
ThismodealsofallsoutsidetheA4WPstandardandbymeasuringtheamplifiersupplyvoltageacrossTP1andTP2willshowthatithasnearlyreachthemaximumvaluelimit.
ZVSTimingAdjustmentSettingthecorrecttimetoestablishZVStransitionsiscriticaltoachievinghighefficiencywiththeEPC9510amplifier.
ThiscanbedonebyselectingthevaluesforR71andR72orP71andP72respectively.
Thisprocedureisbestperformedusingapotentiometerinstalledattheappropriatelocationsthatisusedtodeterminethefixedresistorvalues.
ThetimingMUSTinitiallybesetWITHOUTthesourcecoilconnectedtotheamplifier.
ThetimingdiagramsaregiveninFigure10andshouldbereferencedwhenfollowingthisprocedure.
Onlyperformthesestepsifchangeshavebeenmadetotheboardasitisshippedpreset.
Thestepsare:1.
Withpoweroff,removethejumperinJP1andinstallitintoJP50toplacetheEPC9510amplifierintoBypassmode.
Connectthemaininputpowersupply(+)toJP1(bottompin–forbypassmode)withgroundconnectedtoJ1ground(-)connection.
2.
Withpoweroff,connectthecontrolinputpowersupplybus(19V)to(+)connectorJ1.
Notethepolarityofthesupplyconnector.
3.
ConnectaLOWcapacitanceoscilloscopeprobetotheprobe-holeofthehalf-bridgetobesetandleanagainstthegroundpostasshowninFigure9.
4.
Turnonthecontrolsupply–makesurethesupplyisapproximately19V.
5.
Turnonthemainsupplyvoltagestartingat0Vandincreasingtotherequiredpredominantoperatingvalue(suchas24VbutNEVERexceedtheabsolutemaximumvoltageof66V).
6.
WhileobservingtheoscilloscopeadjusttheapplicablepotentiometerstosoachievethegreenwaveformofFigure10.
7.
Replacethepotentiometerswithfixedvalueresistorsifrequired.
RemovethejumperfromJP50andinstallitbackintoJP1toreverttheEPC9510backtopre-regulatormode.
Table2:PerformanceSummary(TA=25°C)Category3DeviceBoardSymbolParameterConditionsMinMaxUnitsVOUTOutputVoltageRange038VIOUTOutputCurrentRange01.
5#A#Actualmaximumcurrentsubjecttooperatingtemperaturelimits*Maximumcurrentdependsondietemperature–actualmaximumcurrentwillbesubjecttoswitchingfrequency,busvoltageandthermals.
Table1:PerformanceSummary(TA=25°C)EPC9510SymbolParameterConditionsMinMaxUnitsVINBusInputVoltageRange–Pre-RegulatorModeAlsousedinbypassmodeforlogicsupply1724VVINAmpInputVoltageRange–BypassMode080VVOUTSwitchNodeOutputVoltage66VIOUTSwitchNodeOutputCurrent(each)0.
8*AVextoscExternalOscillatorInputThresholdInput'Low'-0.
30.
8VInput'High'2.
45VVPre_DisablePre-regulatorDisableVoltageRangeFloating-0.
35.
5VIPre_DisablePre-regulatorDisableCurrentFloating-1010mAVOsc_DisableOscillatorDisableVoltageRangeOpenDrain/Collector-0.
35VIOsc_DisableOscillatorDisableCurrentOpenDrain/Collector-2525mAVSgnDiffDifferentialorSingleSelectVoltageOpenDrain/Collector-0.
35.
5VISgnDiffDifferentialorSingleSelectCurrentOpenDrain/Collector-11mA4||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016LZVS=tvt8fswCOSSQ+CwellCOSSQ=VAMP∫0VAMPCOSS(v)dv1DeterminingcomponentvaluesforLZVSTheZVStankcircuitisnotoperatedatresonance,andonlyprovidesthenecessarynegativedevicecurrentforself-commutationoftheoutputvoltageatturnoff.
ThecapacitorCZVS1ischosentohaveaverysmallripplevoltagecomponentandistypicallyaround1F.
Theamplifiersupplyvoltage,switch-nodetransitiontimewilldeterminethevalueofinductancesforLZVS1andLZVS2whichneedstobesufficienttomaintainZVSoperationovertheDCdeviceloadresistancerangeandcouplingbetweenthedeviceandsourcecoilrangeandcanbecalculatedusingthefollowingequation:(1)Where:Δtvt=Voltagetransitiontime[s]SW=Operatingfrequency[Hz]COSSQ=Chargeequivalentdeviceoutputcapacitance[F].
Cwell=Gatedriverwellcapacitance[F].
Use20pFfortheLM5113NOTE.
theamplifiersupplyvoltageVAMPisabsentfromtheequationasitisaccountedforbythevoltagetransitiontime.
TheCOSSoftheEPC2107eGaNFETsisverylowandlowerthanthegatedriverwellcapacitanceCwellwhichasaresultmustbenowbeincludedintheZVStimingcalculation.
Thechargeequivalentcapacitancecanbedeterminedusingthefollowingequation:(2)Toaddadditionalimmunitymarginforshiftsincoilimpedance,thevalueofLZVScanbedecreasedtoincreasethecurrentatturnoffofthedevices(whichwillincreasedevicelosses).
Typicalvoltagetransitiontimesrangefrom2nsthrough12ns.
TheSourceCoilFigure4showstheschematicforthesourcecoilwhichisClass2A4WPcompliant.
Thematchingnetworkincludesbothseriesandshunttuning.
Thematchingnetworkseriestuningisdifferentialtoallowbalancedconnectionandvoltagereductionforthecapacitors.
TheDeviceBoardFigure5showsthebasicschematicforthedevicecoilwhichisCategory3A4WPcompliant.
Thematchingnetworkincludesbothseriesandshunttuning.
Thematchingnetworkseriestuningisdifferentialtoallowbalancedconnectionandvoltagereductionforthecapacitors.
ThedeviceboardcomesequippedwithakelvinconnectedoutputDCvoltagemeasurementterminalandabuiltinshunttomeasuretheoutputDCcurrent.
TwoLEDshavebeenprovidedtoindicatethattheboardisreceivingpowerwithanoutputvoltagegreaterthan4V(greenLED)andthattheboardoutputvoltagelimithasbeenreached(greaterthan36VusingtheredLED).
QUICKSTARTPROCEDURETheEPC9114demonstrationsystemiseasytosetupandevaluatetheperformanceoftheeGaNFETinawirelesspowertransferapplication.
RefertoFigure1toassemblethesystemandFigures6through8forproperconnectionandmeasurementsetupbeforefollowingthetestingprocedures.
TheEPC9510canbeoperatedusinganyoneoftwoalternativemethods:a.
Usingthepre-regulator.
b.
By-passingthepre-regulator.
a.
Operationusingthepre-regulatorThepre-regulatorisusedtosupplypowertotheamplifierinthismodeandwilllimitthecoilcurrent,powerdeliveredormaximumsupplyvoltagetotheamplifierbasedonthepre-determinedsettings.
Themain19Vsupplymustbecapableofdelivering2ADC.
DONOTturnupthevoltageofthissupplywheninstructedtopoweruptheboard,insteadsimplyturnonthesupply.
TheEPC9510boardincludesapre-regulatortoensureproperoperationoftheboardincludingstartup.
1.
MakesuretheentiresystemisfullyassembledpriortomakingelectricalconnectionsandmakesurejumperJP1isinstalled.
Alsomakesurethesourcecoilanddevicecoilwithloadareconnected.
2.
Withpoweroff,connectthemaininputpowersupplybustoJ1asshowninFigure7.
Notethepolarityofthesupplyconnector.
3.
Makesureallinstrumentationisconnectedtothesystem.
4.
Turnonthemainsupplyvoltagetotherequiredvalue(19V).
5.
Onceoperationhasbeenconfirmed,observetheoutputvoltage,efficiencyandotherparametersonboththeamplifieranddeviceboards.
6.
Forshutdown,pleasefollowstepsinthereverseorder.
b.
Operationbypassingthepre-regulatorInthismode,thepre-regulatorisbypassedandthemainpowerisconnecteddirectlytotheamplifier.
Thisallowstheamplifiertobeoperatedusinganexternalregulator.
InthismodethereisnoprotectionforensuringthecorrectoperatingconditionsfortheeGaNFETs.
1.
MakesuretheentiresystemisfullyassembledpriortomakingelectricalconnectionsandmakesurejumperJP1hasbeenremovedandinstalledinJP50todisablethepre-regulatorandplacetheEPC9510inbypassmode.
Alsomakesurethesourcecoilanddevicecoilwithloadareconnected.
2.
Withpoweroff,connectthemaininputpowersupplybustothebottompinofJP1andthegroundtothegroundconnectionofJ1asshowninFigure7.
3.
Withpoweroff,connectthecontrolinputpowersupplybustoJ1.
Notethepolarityofthesupplyconnector.
Thisisusedtopowerthegatedriversandlogiccircuits.
4.
Makesureallinstrumentationisconnectedtothesystem.
5.
Turnonthecontrolsupply–makesurethesupplyis19Vrange.
EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||56.
Turnonthemainsupplyvoltagetotherequiredvalue(itisrecommendedtostartat0Vanddonotexceedtheabsolutemaximumvoltageof80V).
7.
Onceoperationhasbeenconfirmed,adjustthemainsupplyvoltagewithintheoperatingrangeandobservetheoutputvoltage,efficiencyandotherparametersonboththeamplifieranddeviceboards.
8.
Forshutdown,pleasefollowstepsinthereverseorder.
Startbyreducingthemainsupplyvoltageto0Vfollowedbysteps6through2.
NOTE.
1.
Whenmeasuringthehighfrequencycontentswitch-node(SourceCoilVoltage),caremustbetakentoavoidlonggroundleads.
Anoscilloscopeprobeconnection(preferredmethod)hasbeenbuiltintotheboardtosimplifythemeasurementoftheSourceCoilvoltage(showninFigure9).
2.
YoumayexperienceaudiblenoiseemanatingfromtheinductoroftheSEPICconverter.
Thisisduetoaminorinstability.
Thisminorinstabilitydoesnotimpacttheperformanceofthepoweramplifierortheprotectioncircuitryofthesystem.
3.
AVOIDusingaLabBenchtopprogrammableDCastheloadforthecategory3deviceboard.
TheseloadshavelowcontrolbandwidthandwillcausetheEPC9114systemtooscillateatalowfrequencyandmayleadtofailure.
Itisrecommendedtouseafixedlowinductanceresistorasaninitialload.
Onceadesignmatures,apostregulator,suchasaBuckconverter,canbeused.
THERMALCONSIDERATIONSTheEPC9114demonstrationsystemshowcasestheEPC2107andEPC2036eGaNFETsinawirelessenergytransferapplication.
Althoughtheelectricalperformancesurpassesthatoftraditionalsilicondevices,theirrelativelysmallersizedoesmagnifythethermalmanagementrequirements.
TheoperatormustobservethetemperatureofthegatedriverandeGaNFETstoensurethatbothareoperatingwithinthethermallimitsasperthedatasheets.
NOTE.
TheEPC9114demonstrationsystemhaslimitedcurrentprotectiononlywhenoperatingoffthePre-Regulator.
Whenbypassingthepre-regulatorthereisnocurrentprotectiononboardandcaremustbeexercisednottoover-currentorover-temperaturethedevices.
Excessivelywidecoilcouplingandloadrangevariationscanleadtoincreasedlossesinthedevices.
Pre-CautionsTheEPC9114demonstrationsystemhasnoenhancedprotectionsystemsandthereforeshouldbeoperatedwithcaution.
Somespecificprecautionsare:1.
NeveroperatetheEPC9114systemwithadeviceboardthatisA4WPcompliantasthissystemdoesnotcommunicatewiththedevicetocorrectlysetuptherequiredoperatingconditionsanddoingsocanleadtofailureofthedeviceboard.
ContactEPCshouldoperatingthesystemwithanA4WPcompliantdeviceisrequiredtoobtaininstructionsonhowtodothis.
PleasecontactEPCatinfo@epc-co.
comshouldthetuningofthecoilberequiredtochangetosuitspecificconditionssothatitcanbecorrectlyadjustedforusewiththeZVSclass-Damplifier.
2.
Thereisnoheat-sinkonthedevicesandduringexperimentalevaluationitispossiblepresentconditionstotheamplifierthatmaycausethedevicestooverheat.
AlwayscheckoperatingconditionsandmonitorthetemperatureoftheEPCdevicesusinganIRcamera.
3.
NeverconnecttheEPC9510ampliferboardintoyourVNAinanattempttomeasuretheoutputimpedanceoftheamplifier.
DoingsowillseverelydamagetheVNA.
Figure3:DiagramofEPC9510amplifiercircuit+VAMPQ1Q2CZVSLZVSCoilConnectionPre-RegulatorPre-RegulatorJumperJP1J1VINBypassModeConnectionFigure2:BlockdiagramoftheEPC9510wirelesspoweramplifierXIAMPPAMPVAMPIcoil|Icoil|19VSEPICPre-RegulatorZVSClass-DAmplierControlReferenceSignalCombinerDCCCoilS1V–DC66VDC6||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016SourceCoilCoilConnectionMatchingImpedanceNetworkClass2CoilFigure4:BasicschematicoftheA4WPClass2SourceCoilUn-RegulatedDCoutputMatchingImpedanceNetworkCat.
3CoilDeviceBoardFigure5:BasicSchematicoftheA4WPCategory3DeviceBoardFigure6:ProperConnectionandMeasurementSetupfortheAmplifierBoard17-24VDCVINSupply(NotePolarity)SourceCoilConnectionExternalOscillatorSwitch-nodeMainOscilloscopeProbeGroundPostVoltageSourceJumperDisableOscillatorJumperDisablePre-RegulatorJumperCoilCurrentSettingAmplierTimingSetting(NotInstalled)+Pre-RegulatorJumperBypassConnectionOperatingModeLEDIndicatorsGroundPostAmplierSupplyVoltage(0V–80Vmax.
)VSwitch-nodePre-RegulatorOscilloscopeprobeInternalOscillatorSelectionJumperEPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||7Figure8:ProperconnectionandmeasurementsetupforthedeviceboardStandosforMechanicalattachmenttoSourceCoiltotheselocations(x5)DeviceOutputVoltage(0V–38Vmax)AVmVExternalLoadConnectionMatchingDeviceOutputCurrent(300mShunt)OutputVoltage>5VLEDOutputVoltage>37VLEDLoadCurrent(SeeNotesfordetails)*ONLYtobeusedwithShuntremovedSourceBoardConnectionMatchingwithtrombonetuningFigure7:Properconnectionforthesourcecoil8||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016Figure9:ProperMeasurementoftheSwitchNodesusingtheholeandgroundpostDonotuseprobegroundleadGroundprobeagainstpostPlaceprobetipinlargeviaMinimizeloopFigure10:ZVSTimingDiagramsShoot-throughQ2turn-onQ1turn-oVAMP0timeZVSPartialZVSZVS+DiodeConductionShoot-throughQ1turn-onQ2turn-oVAMP0timeZVSPartialZVSZVS+DiodeConductionEPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||9Table3:BillofMaterials-AmplifierBoardItemQtyReferencePartDescriptionManufacturerPart#12C1,C801F,10VTDKC1005X7S1A105M050BC28C2,C4,C51,C70,C71,C72,C81,C130100nF,16VWürth88501220503732C3,C9522nF,25VWürth88501220505241C5DNP(100nF,16V)Würth88501220503751C20DNP(10nF,50V)MurataGRM155R71H103KA88D61C45DNP(10nF,100V)MurataC1005X7S2A103K050BB71C73DNP(22pF,50V)Würth81C133DNP(1nF,50V)Murata91R20DNP(10k)PanasonicERJ-2GEJ103X101R45DNP(1.
5k)PanasonicERJ-2RKF1501X115C6,C7,C31,C44,C8222pF,50VWürth885012005057122C11,C1210nF,100VTDKC1005X7S2A103K050BB133C15,C64,C652.
2F,100VTaiyoYudenHMK325B7225KN-T141C21680pF,50VMurataGRM155R71H681KA01D151C221nF,50VMurataGRM155R71H102KA01D162C30,C50100nF,100VMurataGRM188R72A104KA35D171C3247nF,25VMurataGRM155R71E473KA88D182C43,C5310nF,50VMurataGRM155R71H103KA88D191C52100pFMurataGRM1555C1H101JA01D202C61,C624.
7F,50VTaiyoYudenUMK325BJ475MM-T211C6310F,35VTaiyoYudenGMK325BJ106KN-T223C90,C91,C921F,25VWürth885012206076231C1311nF,50VMurataGRM1555C1H102JA01D241Czvs11F,50VWürth885012207103252D1,D9540V,300mASTBAT54KFILM267D2,D21,D40,D41,D42,D71,D7240V,30mADiodesInc.
SDM03U40272D3,D20DNP(40V,30mA)DiodesInc.
SDM03U40281D45V1,150mWBournesCD0603-Z5V1291D35LED0603YellowLite-OnLTST-C193KSKT-5A301D36LED0603GreenLite-OnLTST-C193KGKT-5A311D37LED0603RedLite-OnLTST-C193KRKT-5A321D60100V,1AOn-SemiMBRS1100T3G331D9040V,1ADiodesInc.
PD3S140-7342GP1,GP60.
1"mAleVert.
Würth61300111121351J1.
156"mAleVert.
Würth645002114822361J2SmABoardEdgeLinxCONSAM003.
062375J70,JP1,JP50,JP70,JP71.
1"mAleVert.
Würth61300211121381L60100H,2.
2ACoilCraftMSD1260-104ML391L8010H,150mATaiyoYudenLBR2012T100K401L9047H,250mAWürth7440329470411Lsns110nHCoilCraft2222SQ-111JE422Lzvs1,Lzvs2390nHCoilCraft2929SQ-391JE431P25DNP(10k)MurataPV37Y103C01B00442P71,P72DNP(1k)MurataPV37Y102C01B00451Q1100V,220mΩwithSBEPCEPC2107461Q60100V,65mΩEPCEPC2036471Q61DNP(100V,6A,30mΩ)EPCEPC2007C482R2,R8220ΩStackpoleRMCF0402JT20R0491R327kPanasonicERJ-2GEJ273X501R44.
7ΩPanasonicERJ-2GEJ4R7X511R21100kPanasonicERJ-2GEJ104X522R25,R1336.
8k,1%PanasonicERJ-2RKF6801X531R262.
8k,1%PanasonicERJ-2RKF2801X541R30100ΩPanasonicERJ-3EKF1000V551R3171k5,1%PanasonicERJ-6ENF7152V(continuedonnextpage)10||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016Table3:BillofMaterials-AmplifierBoard(continued)ItemQtyReferencePartDescriptionManufacturerPart#561R328.
2k,1%PanasonicERJ-2RKF8201X571R3375kPanasonicERJ-2GEJ753X582R35,R36634ΩPanasonicERJ-2RKF6340X591R37150k,1%PanasonicERJ-2RKF1503X602R38,R9149.
9k,1%PanasonicERJ-2RKF4992X612R40,R130261kPanasonicERJ-3EKF2613V622R41,R1316.
04kPanasonicERJ-2RKF6041X631R4224.
9kPanasonicERJ-2RKF2492X641R4310.
5kPanasonicERJ-2RKF1052X652R44,R90100k,1%PanasonicERJ-2RKF1003X661R5010ΩPanasonicERJ-3EKF10R0V671R51124k,1%PanasonicERJ-2RKF1243X681R5271.
5k,1%PanasonicERJ-2RKF7152X691R531.
00kPanasonicERJ-2RKF1001X701R540ΩYageoRC0402JR-070RL711R6080mΩ,0.
4WVishayDaleWSLP0603R0800FEB721R61300mΩ,0.
125WVishayDaleRL0805FR-070R3L731R7047kPanasonicERJ-2RKF4702X741R71430ΩPanasonicERJ-2RKF4300X751R72180ΩPanasonicERJ-2RKF1800X761R7310kPanasonicERJ-2GEJ103X771R802.
2ΩYageoRC0402JR-072R2L781R929.
53k1%PanasonicERJ-2RKF9531X791R13218k1%PanasonicERJ-2RKF1802X801R134470kPanasonicERJ-2RKF4703X812TP1,TP2SMDProbeLoopKeystone5015821Tsns10H,1:1,96.
9%CoilCraftPFD3215-103ME831U1100V,eGaNDriverTexasInstrumentsLM5113TM841U30Power&CurrentMonitorLinearLT2940IMS#PBF851U50BoostControllerTexasInstrumentsLM3478MAX/NOPB861U70ProgrammableOscillatorKDSDaishinkuDSO221SHF6.
780871U712InNANDFairchildNC7SZ00L6X881U722InANDFairchildNC7SZ08L6X891U80GateDriverwithLDOTexasInstrumentsUCC27611DRV901U901.
4MHz,24V,0.
5ABuckMPSMP2357DJ-LF911U130ComparatorTexasInstrumentsTLV3201AIDBVREPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||11Table4:BillofMaterials-SourceCoilItemQtyReferencePartDescriptionManufacturerPart#11Ctrombone470pF,300VVishayVJ1111D471KXLAT21C13.
3pF,1500VVishayVJ1111D3R3CXRAJ31C23.
3pF,1500VVishayVJ1111D3R3CXRAJ41C3390pF,630VVishayVJ1111D391KXLAT51PCB1Class2CoilFormerNuCurrentR42DMTxD161J1SMAPCBEdgeLinxCONREVSMA003.
031Table5:BillofMaterials-DeviceBoardItemQtyReferencePartDescriptionManufacturerPart#11C84100nF,50VMurataGRM188R71H104KA93D21C8510F,50VMurataGRM32DF51H106ZA01L31PCB1Cat3PRUCoastalCircuitsCat3DeviceBoard42CM1,CM11470pFVishayVJ1111D471KXLAT54CM2,CM12,CMP1,CMP2DNP––64CM5,CM7,CMP3,CMP4DNP––71CM656pFVishayVJ0505D560JXPAJ81CM868pFVishayVJ0505D680JXPAJ94D80,D81,D82,D8340V,1ADiodesInc.
PD3S140-7101D84LED0603GreenLite-OnLTST-C193KGKT-5A111D852.
7V250mWNXPBZX84-C2V7,215121D86LED0603RedLite-OnLTST-C193KRKT-5A131D8733V,250mWNXPBZX84-C33,215142J81,J82.
1"MaleVert.
Würth61300211121152LM1,LM1182nHWürth744912182161R80300mΩ,1WStackpoleCSRN2512FKR300171R814.
7kΩStackpoleRMCF1206FT4K70181R82422ΩYageoRMCF0603FT422R194TP1,TP2,TP3,TP4SMDProbeLoopKeystone5015201JPR1WireJumperatCM11––EPCwouldliketoacknowledgeWürthElectronics(www.
we-online.
com/web/en/wuerth_elektronik/start.
php),Coilcraft(www.
coilcraft.
com),andKDSDaishinkuAmerica(www.
kdsamerica.
com)fortheirsupportofthisproject.

12||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016Figure11:EPC9510-ZVSclass-Dschematic19V1AmaxVIN5VVOUTGNDIcoilPreRegulatorEPC9510PR_R1_0.
SchDocVIN5VVOUTPre-RegulatorSDM03U4040V30mAD715V5V5VDeadtimeFallDeadtimeRise1kP71ABU71NC7SZ00L6XABYU72NC7SZ08L6X5VDSO221SHF6.
78042GNDOUT3OE1VCCU705V5VOscillatorIntOsc5V5VLogicSupplyRegulatorVINOSCOSCOSC.
1"MaleVert.
12JP70OscillatorDisableOSCIntOsc.
1"MaleVert.
12J70ExternalOscillatorInternal/ExternalOscillatorSDM03U4040V30mAD721kP72TBD12R72OSCH_Sig1L_Sig1OSC.
1"MaleVert.
12JP71OutAZVSTankCircuit12.
156"MaleVert.
J1VINMainSupplyVAMPVOUTSMABoardEdgeJ2Pre-RegulatorDisconnectSMDprobeloop1TP1SMDprobeloop1TP2VAMPVAMP5VGNDLINOUTHINaEPC9510_SE_ZVSclassD_Rev1_0.
SchDocTBDLzvs1VAMPH_Sig1L_Sig15VJumper100JP10110nHLsnsCoilCurrentSense100k12R21680pF,50VC21SDM03U4040V30mAD20SDM03U4040V30mAD21IcoilIcoilTBD12R7110nF,50VC2010nF,50VC2210k12R7347k12R7010k12R20100nF,16VC72100nF,16VC7122pF,50VC73EMPTY1F,25VC90C921F50VCzvs1100nF,16VC70Jumper100JP72.
1"MaleVert.
12JP1435216OSCReg0.
81VGNDINFBENDRVCNTLU90MP2357DJ-LF9.
53k1%12R9249.
9k1%12R915V22nF,25VC9547H250mAL90100k1%12R90VIND95BAT54KFILMPD3S140-740V1AD901F,25V1F,25VC91TBD12R26TBD12R2510kP25CurrentAdjust1210H1:196.
9%34TsnsFD1LocalFiducialsFD2FD3EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||13Figure12:EPC9510-GatedriverandpowerdevicesschematicGU5VHS5VHS5VGLGateDriverU1LM5113TMOUTGUGLD1BAT54KFILM5V4.
7V4.
7VGL20Ω12R2SDM03U40D3EMPTYSynchronousBootstrapPowerSupply1F,10VC1D4CD0603-Z5V1Gbtst27k12R3D2SDM03U4022nF,25VC3GND5VOUTVAMPOutGUGLOut2.
2F,100VC1510nF,100VC1110nF,100VC12VAMPVAMPVAMPVAMPGNDHINLINHINLIN1ProbeHolePH1GroundPost1.
1"MaleVert.
GP1100V,220mΩwithBSQ1AEPC2107Q1BEPC21074.
7Ω12R4100nF,16VC2100nF,16VC4100nF,16VC5EMPTY22pF,50VC622pF,50VC714||EPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016Figure13:Pre-regulatorschematic100k1%12R44VINIsns100pFC52.
1"MaleVert.
12JP50Pre-RegulatorDisableFA/SDVOUTVINVsepic5V5VGD5VGDGLPHGLPLGateDriver2.
2Ω12R80GLPLGLPH1280mΩ,0.
4WR60SWVINVIN5VVOUTGNDPreDRPWM71.
5k1%12R52124k1%12R515V10nF,50VC53GroundPost4.
7F,50VC624.
7F,50VC612.
2F,100VC6454UVLOOsc36Pgnd1.
26VCntFA/SDFBComp87AgndIsensVIN21DRU50LM3478MAX/NOPB0Ω12R52100V,1AD60MBRS1100T3GVfdbkVINIsns10F,35VC6316D321.
24V12879CLRLEQV-V+I-I+451110VCCGNDUVLCLatchHiLoCMPOUTCMPOUTPmonImonCMP+U30LT2940IMS#PBF12300mΩ,0.
125WR61623EP45LDOVREFVSS1VDDU80UCC27611DRV75k12R33D36D35CurrentModePowerModePmonImonVsepicVOUT634Ω12R355V8.
2k1%12R32V+VsepicPcmpDCPowerMonitorIsnsIsnsIsnsPmonOutputVoltageLimitOutputPowerLimitOutputCurrentLimitSDM03U4040V,30mAD40SDM03U4040V,30mAD4124.
9k12R42Isns2.
2F,100VC6510H,150mAL80IsnsVOUTComp100Ω12R30Icoil100nF,100VC5010Ω12R501.
1"MaleVert.
GP601ProbeHolePH6020Ω12R82100nF,16VC81100nF,100VC3022pF,50VC4422pF,50VC8222pF,50VC315VGD5VGD1F,10VC80Pcmp49.
9k1%12R386.
04k12R4110.
5k12R43150k1%12R37261k12R40SDM03U4040V,30mAD4243152U130TLV3201AIDBVR100nF,16VC130D37634Ω12R365V5VVoltageModeVOUTVomPledIled100V,65mΩQ60EPC2036EPC2007C100V,6A,30mΩQ61GLPL10nF,50VC431271k51%R3113100H,2.
2A42L601.
5k12R45EMPTY10nF,100VC45EMPTY47nF,25VC3218k1%12R1326.
8k1%12R133470k12R1345V6.
04k12R131261k12R1301nF,50VC1311nF,50VC133EMPTY1.
00k12R53100nF,16VC51VOUTVfdbkEPC–EFFICIENTPOWERCONVERSIONCORPORATION|WWW.
EPC-CO.
COM|COPYRIGHT2016||15Figure14:Class2SourceBoardSchematicFigure15:Category3deviceboardschematicC13.
3pF1111C23.
3pF1111SMAPCBEdgeJ1CtromboneAdjustontromboneAmplierConnection470pF1111390pF1111C3CoilMatchingCl1Cls2PTU40V,1AD8040V,1AD8240V,1AD8140V,1AD8310F,50VC85VRECT100nF,50VC84VRECTVRECTVOUTVOUT12300mΩ,1WR80.
1"MaleVert.
12J81RXCoilSMDprobeloop1TP1SMDprobeloop1TP2KelvinOutputCurrentSMDprobeloop1TP3SMDprobeloop1TP4VOUT.
1"MaleVert.
12J82OutputCat3PRUCl1DNPCMP1CM1470pF470pFCM11CM2DNPDNPCM12DNPCMP2KelvinOutputVoltageShuntBypassLM1LM1182nH82nHMatchingCMP3DNPCMP4DNPpFCM5DNPCM656pFCM7DNPCM868pF4.
7k12R81ReceiveIndicatorOver-VoltageIndicator422Ω12R82LED0603GreenD84LED0603RedD86VOUT>4VVOUT>36V2.
7V,250mW250mWD8533V,D87DemonstrationBoardNotificationTheEPC9114boardisintendedforproductevaluationpurposesonlyandisnotintendedforcommercialuse.
ReplacecomponentsontheEvaluationBoardonlywiththosepartsshownonthepartslist(orBillofMaterials)intheQuickStartGuide.
ContactanauthorizedEPCrepresentativewithanyquestions.

Thisboardisintendedtobeusedbycertifiedprofessionals,inalabenvironment,followingpropersafetyprocedures.
Useatyourownrisk.