论文中英文翻译一 ZXC型直流稳压电源及充电器的工作原理.docx

论文中英文翻译一 ZXC型直流稳压电源及充电器的工作原理.docx

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论文中英文翻译一ZXC型直流稳压电源及充电器的工作原理

OneZX2018CDCpowersupplyandbatterychargerworks

1Products

Theproductsandthechargerfromthepowersupplycomposedoftwoparts;powersupplyoutput3V,6VDCvoltage,radioandothersmallappliancescanbeusedasanexternalpowersupply;chargerto5,7,rechargeablebatteryforconstantcurrentcharge.

2featuresandmainparameters

DCpowersupply;inputvoltage;AC220V;outputvoltage;DC3V,6V;maximumoutputcurrent:

500ma.BatteryCharger:

leftchannel（E1,E2）chargingcurrent50-60ma（normalcharge）;rightchannel（E3,E4）110-130chargecurrent（fastcharge）,twochannelscanbeusedsimultaneously,eachcanbecharged5or7,twosectionsofthebattery.Powersupplyandbatterychargercanbeusedsimultaneously,aslongasthetwocurrentsandnomorethan500ma.

3Boardcompositionandworkingprinciple

Description:

Thenameoftheboardare:

circuitboard,PCB,aluminumplates,highfrequencyboard,PCB,ultra-thincircuitboards,ultra-thincircuitboards,printing（copperengravingtechnology）circuitboards.Miniofthecircuitboard,visualization,forafixedvolumeandoptimizethecircuitlayoutplaysanimportantrolewiththeelectrical.

SinglePanel（Single-SidedBoards）

Wehavejustmentioned,thebasicPCB,componentsconcentratedinoneside,wiresareconcentratedontheotherside.Becausetheleadonlyinoneside,sowecallthisiscalledsingle-sidedPCB（Single-sided）.Single-paneldesignlinesbecausetherearemanystrictrestrictions（becauseonlyoneside,thewiringbetweentheAC*andmustnotbealonearoundthepath）,soonlyuntiltheearlyuseofsuchacircuitboard.

DoubleSided（Double-SidedBoards）

Bothsidesofthiscircuitboardwiring.Butwithawireonthesides,thesidesmusthavetheappropriateelectricalconnectionsbetweentheCaixing.Thecircuitbetweena"bridge"iscalledthepilothole（via）.PilotholeinthePCB,theholesfilledorcoatedwithmetal,itcanbeconnectedtothewirewithbothsides.Becausetheareaofdual-paneltwiceasbigthanthesinglepanel,andbecauseroutingcanbeinterleaved（mightgoaroundtotheotherside）,itismoresuitableforuseinmorecomplexthanthesingle-sidedcircuit.

Multilayer（Multi-LayerBoards）

Inordertoincreasetheareaforrouting,multilayerspendmoresingle-ordouble-sidedwiringboard.Thenumberofmultilayerfilmsusingdouble-sided,andplacedineachcubicle

Aftertheinsulatinglayerintoalayerofstickyjail（pressfit）.

Theboardareseverallayerstorepresenttheseparatewiringlayers,usuallylayersareeven,andincludestheoutermosttwolayers.Mostoftheboardare4to8layersofstructure,buttechnicallycanbedonealmost100layersofPCBboard.Mostlarge-scaleuseofsupercomputersrathermulti-layeredboard,butbecausethesecomputershavealotofordinarycomputerscanbeusedinsteadofthecluster,supermulti-layerboardhasgraduallybeingused.BecausethePCBlayersareinclose,generallynoteasytoseethattheactualnumber,butmotherboardifyoulookclosely,andperhapscanbeseen.

1.Transformer:

UsingtheprincipleofelectromagneticinductiontochangetheACvoltageofthedevice,themaincomponentistheprimarycoil,secondarycoilandcore（core）.Inelectricalequipmentandradiocircuits,commonlyusedforliftingvoltage,impedancematching,securityisolation.Theproductofthetransformervoltageis220V-9V.

2.Rectifiercircuit;toconvertDCtoACpowercircuit.Mostoftherectifiercircuitbythetransformer,rectifierandfiltercircuitcomposedofthemain.ItisintheDCmotorspeed,thegeneratorexcitationregulator,electrolysis,electroplatingandotherfieldsarewidelyused.RectifiercircuitistheroleoftheACoutputvoltagestep-downcircuitintoalowone-wayalternatingcurrentpulseofdirectcurrent,whichistheprocessofalternatingcurrentrectifier,rectifierdioderectifiercircuitcomposedmainly.AfterthevoltageaftertherectifiercircuitisnottheACvoltage,butaDCvoltageandACvoltagewithmixedvoltagerippleofthecustomaryway,saidDCvoltage.Powersupplycircuitsarehalf-waverectifiercircuitrectifier,fullwaverectifierbridgerectifiercircuitandthree,voltagerectifiercircuitforrectifyingtheACsignaltheother,forexampleforLEDlevelindicatorcircuit,theaudiosignalrectification.

Figure3-1rectifier

Howitworks:

isahalfweeks,onVD2,VD3anddirectionofthevoltage,VD2,VD3conduction;ofVD1,VD4reversevoltage,VD1,VD4end,formingapositiveunderthenegativehalf-waverectificationwashvoltage,inthenegativehalf-cycleWhen,ontheVD1,VD4plustheforwardvoltage,VD2,VD4conduction;ofVD2,VD3reversevoltage,VD2,VD3closed

.

Figure3-2rectifieroutputwaveform

3.Filtercircuit:

forfilteredrectifieroutputvoltageripple,usuallybythereactancecomponents,suchasshuntcapacitoracrosstheresistorintheloadC,oraserieswiththeloadinductorL,andbythecapacitors,inductorsformedfromthevariousDuplexfiltercircuit.MinimizetheripplefiltercircuitDCvoltageintheACcomponent,toretainitscurrentcomposition,theoutputvoltageripplefactordecreases,thewaveformbecomesmoresmooth

Figure3-3filtercircuit

Howitworks:

Whenthechangeofcurrentflowingthroughtheinductor,theinductorcoilbytheinducedelectromotiveforcetostopthecurrentchanges.Whenthecurrentthroughtheinductorincreases,theinductanceself-inductanceofthecoilemfandcurrentintheoppositedirection,topreventtheincreaseincurrent,whilepartoftheelectricalenergyintomagneticenergystoredintheinductorinto;whenthecurrentthroughtheinductorcoilisreduced,Self-inductanceemfandcurrentinthesamedirectiontopreventthecurrentdecreases,whilethereleaseofstoredenergytocompensateforthecurrentdecrease.Therefore,filteredbytheinductor,notonlythepulseofloadcurrentandvoltagedecreases,thewaveformbecomessmooth,andtherectifierdiodeconductionangleincreases.

Inthecaseofconstantinductancecoil,thesmallertheloadresistance,thesmallertheoutputvoltageoftheACcomponent.OnlyinRL>>ωLtimetogetbetterfilteringeffect.Lbigger,betterfilteringeffect.

Inaddition,theroleofthefilterinductanceelectromotiveforce,canmakethediodeconductionangleclosetoπ,theimpactofreducingthediodecurrent,smoothingtheflowofcurrentthroughthediode,therebyextendingthelifeoftherectifierdiodes.

LetC1,C2,UC1=UC2=0,UC2:

I（C1charge,RLregulatorcircuit）;absegments:

C1charge,RLregulatorcircuit;bSection:

ULpeak.bcSection:

U2decline.CSection:

ΔU2>ΔUC,Vdonly.RLchargedonlybytheUC

Figure3-4filtercircuitoutputwaveform

4.Regulatorcircuit:

theroleofcircuitadjustmentstotheoutputvoltageiscalledregulation.Theinputvoltage,load,ambienttemperature,circuitparameterssuchchangescanmaintainaconstantoutputvoltageofthecircuit.ThiscircuitcanprovidestableDCpower,iswidelyusedinvariouselectronicdevices.Componentsfortheadjustmentofitsstructure,referencevoltagecircuit,thecircuitofthesample,comparedamplifier.

Today'ssocietypeopleareenjoyingthegreatconveniencebroughtbyelectronicdevices,butanyelectronicdevicehasacommoncircuit-thepowercircuit.Largesupercomputerstosmallpocketcalculator,allelectronicdevicesmustsupportthepowercircuittoworkproperly.Ofcourse,thestyleofthesepowercircuits,complexityvarywidely.Supercomputerpowercircuititselfisacomplexpowersystem.Throughthispowersystem,supercomputersareabletogetthevariouspartsofsteady,consistentpowersupplycomplexspecifications.Pocketcalculatorismorethanasimplebatterypowercircuit.Butyoucannotunderestimatethebatterypowercircuittocomparethenewcircuitisfullyequippedwithbatterypowertoremind,powerprotectionandotheradvancedfeatures.Canbesaidthatthepowercircuitisthebasisforallelectronicequipment,therewouldbenopowersupplycircuitsuchawidevarietyofelectronicequipment.

Becausethecharacteristicsofelectronictechnology,electronicequipmentrequiredforpowersupplycircuitisabletoprovidesustainedandstabletomeettheloadrequirementsofelectricity,andusuallyrequiretoprovideastableDCpower.CanprovidesuchastableDCpowersupplyistheDCpowersupply.DCpowersupplyinpowersupplytechnologyplaysaveryimportantposition.Inaddition,manyelectronicsenthusiastsnovicefirstencounteristosolvethepowerproblem,otherwisethecircuitdoesnotwork,electronicproductioncannotlearntospeakof.Tothisend,Pecker'sHomeopenedupaspecialtechnicalfeatureofthisDCpowersupply,hopingtonoviceelectronicsenthusiastsomehelp.Enthusiastscanalsosupplytechnologyasacommonreferencefordailylearning,makingthereference

Figure3-5voltageregulator

Regulatorcircuitcomponents:

1.VT1,VT2compositepip

2.R3,LED2voltageregulator

3.R2,LED1currentprotection

4.VT3discharger

5.R4,R5,R6samplingcircuit

Voltageregulatorworks:

WhentheinputU2rise,leadingtoVdropinvoltageUL,Ub3rise,Ubc3rise,Ubincreased;Ube3=Ub3-Ue3

UB1rose→Uce↑,Ub1↑→IR1↑→Tc1↑→Ue↑,Ic↑=Ib1↑

∴Uo=U2-Uce,ΔU2<Δuce

5.chargingcircuit:

thechargingcircuitisdividedintoordinarycharge,fastchargeoftwoparts.Ifthedistinctionbetweenanordinarychargeorfastchargeaslongastheresistancetostopwatching,becausethetimewhenU=9V,I=U/R,R7>R9,forfastcharging.

Figure3-6ChargingCircuit

Figure3-7Schematicprinciple

Twowelding

Welding2.1Introduction

Anyelectronicproducts,fromseveralp