附录1外文资料译文.docx

附录1外文资料译文.docx

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附录1外文资料译文

Thedesignofthelithiumbatterycharger

Introduction

Li-Ionrechargeablebatteriesarefindingtheirwayintomanyapplicationsduetotheirsize,weightandenergystorageadvantages.Thesebatteriesarealreadyconsideredthepreferredbatteryinportablecomputerapplications,displacingNiMHandNiCadbatteries,andcellularphonesarequicklybecomingthesecondmajormarketplaceforLi-Ion.Thereasonisclear.Li-Ionbatteriesoffermanyadvantagestotheendconsumer.Inportablecomputers,

Li-IonbatterypacksofferlongerruntimesoverNiCadandNiMHpacksforthesameformfactorandsize,whilereducingweight.Thesameadvantagesaretrueforcellularphones.AphonecanbemadesmallerandlighterusingLi-Ionbatterieswithoutsacrificingruntime.AsLi-Ionbatterycostscomedown,evenmoreapplicationswillswitchtothislighterandsmaller

technology.Markettrendsshowacontinualgrowthinallrechargeable

batterytypesasconsumerscontinuetodemandtheconvenienceofportability.Marketdatafor1997showsthatapproximately200millioncellsofLi-Ionwillbeshipped,comparedto600millioncellsofNiMH.However,itisimportanttonotethatthreecellsofNiMHareequivalenttooneLi-Ioncellwhenpackagedintoabatterypack.Thus,theactualvolumeisveryclosetothesameforboth.1997alsomarkedthefirstyearLi-Ionwasthebatterytypeusedinthemajorityofportablecomputers,displacingNiMHforthetopspot.DataforthecellularmarketshowedashifttoLi-Ioninthemajorityofphonessoldin1997inEuropeandJapan.Li-Ionbatteriesareanexcitingbatterytechnologythatmustbewatched.Tomakesenseofthesenewbatteries,thisdesignguideexplainsthefundamentals,thechargingrequirementsand

thecircuitstomeettheserequirements.

Alongwithmoreandmoretheemergenceofthehandheldelectricappliances,tothehighperformance,babysize,weightneedofthelightbatterychargeralsomoreComemorebig.Thebatteryistechnicaltoprogresstoalsorequestcontinuouslytorefreshthecalculatewaymorecomplicatedlyisfastwiththerealization,safetyofrefresh.ThereforeneedWanttocarryonthemoreaccuratesupervisiontowardsrefreshingtheprocess,toshortentorefreshtimeandattainthebiggestbatterycapacity,andprevent°fromthebattery

Bad.TheAVRhasalreadyledtheonestepinthecompetition,isproveisperfectcontrolchipofthenextgenerationcharger.ThemicroprocessorofAtmelAVRiscurrentandcanprovideFlash,EEPROMand10ADCsesbysinglesliceonthemarketOf8RISCmicroprocessorsofthetallesteffect.BecausethesavingmachineofprocedureisaFlash,thereforecanneednotelephantMASKROMSimilar,haveafewsoftwareeditionsafewmodelnumbersofstock.TheFlashcancarryonagaintoweavethedistancebeforedelivergoods,orinthePCBStickafterpackcarryonweavingthedistancethroughanISPagain,thusallowtocarryonthesoftwarerenewalinthelastoneminute.

TheEEPROMcanusedforconservancymarkcertainlycoefficientandthebatterycharacteristicparameter,suchastheconservancyrefreshesrecordwiththebatterythatraisetheactualusageCapacity.10A/Dsconversionmachinecanprovidetheenoughdiagraphaccuracy,makingthecapacityofthegoodempressevenneartoitsbiggestcapacity.Andotherprojectforattainingthispurpose,possibledemandtheADCoftheexterior,notonlytakeupthespaceofPCB,butalsoraisedthesystemCost.

TheAVRisthusdeluxelanguagebut8microprocessorsofthedesignsofuniqueneedleobject"C"currently.TheAT90S4433referenceThedesigniswith"C"towrite,theelucidationcarriesonthesoftwaredesign'siswhatandsimplewiththedeluxelanguage.CodeofCthisdesignisveryCarryonadjusteasilytosuitcurrentandfuturebattery.ButtheATtiny15referencedesignthenuseeditcollectedmaterialsthelanguagetowriteof,withAcquirethebiggestcodedensity.

Anelectricappliancesofthemodernconsumptionmainlyusesasfollowsfourkindsofbatteries:

1.Sealcompletelythesourbatteryoflead（SLA）

2.ThebatteryofNiCd

3.TheNiMHhydrogenbattery（NiMH）

4.Lithiumbattery（Li-Ion）

Atrightchoicebatteryandrefreshthecalculatewayneedtounderstandthebackgroundknowledgeofthesebatteries.Sealcompletelythesourbattery（SLA）ofleadsealscompletelythesourbatteryofleadtomainlyusedforthemoreimportantsituationofthecostratiospaceandweights,suchastheUPSandreporttothepolicethebackupbatteryofthesystem.

ThebatteryofSLAsettlestheelectricvoltagetocarryon,assistlimitstoavoidwiththeelectriccurrentatrefreshtheprocessofearlybatteryleadtheheat.Want～onlytheelectricity.Thepondunitelectricvoltagedoesnotexceedtheprovision（thetypicalmodelisworthforthe2.2Vs）ofproducethecompany,thebatteryofSLAcanrefreshwithoutlimit.

ThebatteryofNiCdbatteryofNiCduseverywidespreadcurrently.Itsadvantageisanoppositecheapness,beingeasytotheusage;Weaknessisfromturnonelectricitytheratehigher.ThebatteryofNiCdofthetypicalmodelcanrefresh1,000times.Theexpiredmechanismmainlyisapoletoturnover.Thefirstinthebatterypackdriveover.Theunitthatallturnonelectricitywilltakeplacethereversal.Forprevent°fromingdamagethebatterywrap,needingtosuperviseandcontroltheelectricvoltagewithoutabreak.OnceunitelectricvoltageDescendthe1.0Vsmustshutdown.ThebatteryofNiCdcarriesonrefreshinsettlingtheelectriccurrentbyforever.TheNiMHhydrogenbattery（NiMH）holdstoshoottheelephantmachinesuchasthecellularphone,handinthehandthattheimportancemeasureholdequipments,theetc.NiMHhydrogenbatteryisanusagethemostwide.Thiskindofbatterypermit.ThequantityisbiggerthanNiCd's.BecauseleadtorefreshandwillresultinbatteryofNiMHloseefficacy,carryonmeasuringbythesquareinrefreshprocesswith.Stopiscountformuchinfittime.SimilartobatteryofNiCd,thepoleturnoverthebatteryalsowilldamage.

BatteryofNiMHoffromturnonelectricitytherateandisprobably20%/month.SimilartobatteryofNiCd,thebatteryofNiMHalsosettlestheelectriccurrenttorefresh.Otherbatteriessayscompareinlithiumbattery（Li-Ion）andthistexts,thelithiumbatteryhasthetallestenergy/weighttocomparetocomparewithenergy/physicalvolume.Lithiumbattery

Settletheelectricvoltagetocarryonrefreshwith,wanttohavetheelectriccurrentrestricttoleadtheheatintheearlybatteryofrefreshtheprocessbyavoidatthesametime.Whenrefreshtheelectriccurrent

Descendtoproducetheminimumelectriccurrentoftheenactmentofcompanywillstoprefresh.Leadingtorefreshwillresultinbatterydamage,evenexploding.

Thesafetyofthebatteryrefreshesthefastchargemachine（namelybatterycanatsmallbefilledwiththeelectricityin3hours,isusuallyahour）demandofthemodern.Cantotheunitelectricvoltage,refreshtheelectriccurrentandthebatterytemperaturestocarryontomeasurebythesquare,avoidatthetimeofbeingfilledwiththeelectricitybecauseofleadingtorefresh.Resultinofdamage.RefreshthemethodSLAbatteryandlithiumbatteriesrefreshesthemethodtosettletheelectricvoltagemethodtowanttolimittoflowfortheever;ThebatteryofNiCdandbatteryofNiMHsrefreshthemethod.Settletheelectriccurrentmethodfortheever,andhaveseveralstostopthejudgmentmethodforrefreshdifferently.

Biggestrefreshtheelectriccurrentbiggestrefreshtheelectriccurrenttohaverelationwithbatterycapacity（C）.Biggestusuallyrefreshtheelectriccurrenttomeanwiththenumberofthebatterycapacity.Forexample,

Thecapacityofthebatteryfor750mAhs,refreshtheelectriccurrentas750mAs,thenrefreshtheelectriccurrentas1C（1timesbatterycapacity）.If

TheelectriccurrenttoflowrefreshisaC/40,thenrefreshingtheelectriccurrentforthebatterycapacityinadditiontowith40.Leadthehotbatteryrefreshistheprocessthattheelectricpowerdeliversthebattery.Energybychemicalreactionconservancycomedown.Butisnotall.Theelectricpowersallconvertforthesakeofthechemistryinthebatteryability.Someelectricpowerconversionsbecamethethermalenergy,havingthefunctionoftheheatingtothebattery.Whenelectricity.Afterpondbefilledwith,ifcontinuetorefresh,thenallelectricpowersconversionisthethermalenergyofthebattery.Atfastchargethiswillmakethebattery.Heatquickly,ifthehourofcannotcomparewithstoprefreshandthenwillresultinbatterydamage.Therefore,whiledesignthebatterycharger,tothetemperature.Itiscountformuchthatcarryonthesupervisioncombinetostoprefreshintime.

Thediscretionmethodbatterystoppedrefreshofdifferentandappliedsituationandworkenvironmentlimittedtothechoiceofthemethodthatthejudgmentstoprefresh.Thesometimestemperatureallowofno.Measureeasily,butcanmeasureelectricvoltage,orisothercircumstances.Thistexttakestheelectricvoltagevarietyrate（-dV/dt）asthebasicjudgmenttostop

Themethodforrefresh,butwiththetemperatureandabsoluteelectricvoltagebeworthforassistanceandbackup.Butthehardwaresupportthatthistextdescribespeaksasfollows.Themethodofthehavingsofsay.

Timeoft–thismethodthatisthedecisionwhenstoprefreshmostinbrief.Usuallyusedforspareprojectofthehouroffastcharge.Sometimesalsobe.Refresh（14-16Hour）basicprojectofthemethod.Beapplicabletovariousbattery.StoprefreshwhentheelectricvoltageofV–betheelectricvoltagetooutruntheupperlimit.Usuallywiththeforeversettletheelectriccurrentrefreshesthematchusage.Thebiggestelectriccurrent