标签: chargers

Abstract:Byaddingadualopampandsomeothercomponentstoalithium-battery-chargerIC,youcanadjustthechargingvoltagetoanylevelwithintherangeforstandardlithiumbatteries(3.6Vto4.2V).Maxim>DesignSupport>AppNotes>AmplifierandComparatorCircuits>APP4520Maxim>DesignSupport>AppNotes>BatteryManagement>APP4520Keywords:lithium-batterychargers,charge-terminationvoltage,fastcharge,dualopampJul05,2011APPLICATIONNOTE4520ChargingLithiumBatterieswithaNonstandardTerminationVoltageBy:ShastaThomas,ApplicationsEngineerAbstract:Byaddingadualopampandsomeothercomponentstoalithium-battery-chargerIC,youcanadjustthechargingvoltagetoanylevelwithintherangeforstandardlithiumbatteries(3.6Vto4.2V).AsimilarversionofthisarticleappearedintheMarch31,2008issueofEETimesmaga……

Abstract:Twocircuitsaredescribed.ThefirstusesexternalMOSFETsdrivenbythePowerOK(POK)outputofaLi-cellchargerIC(MAX8814),toswitchaloadbetweenbatteryandchargingsourcewithoutinterventionfromamicrocontrollerorsystemsoftware.ForchargerICswithoutaPOKoutput(suchastheMAX1507),thesecondcircuitdoesthesameswitchingusingMOSFETsandacomparator(MAX920).Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4840Maxim>Designsupport>Appnotes>BatteryManagement>APP4840Keywords:loadswitching,rechargeablebattery-poweredsystems,Li+batterychargers,powerOK(POK)outputsFeb10,2011APPLICATIONNOTE4840Battery/ChargerLoadSwitchApproximatesIdealDiodeBy:BudgeIngHubertBugajskiAbstract:Twocircuitsaredescribed.ThefirstusesexternalMOSFETsdrivenbythePowerOK(POK)outputofaLi-cellchargerIC(MAX8814),toswitchaloadbetweenbatteryandchargingsourcewithoutinterventionfromamicrocontrollerorsystemsoftware.ForchargerICswithoutaPOKoutput(……

摘要：该电路包括电池充电器（MAX712）处理充电器的电源部分和降压开关稳压器（MAX5089）。通过控制稳压器为电池充电控制器MAX712的行为，生产为7V至16V的输出。从任何能够提供所需的快速充电电流，这种情况必须等于输出电压的总和（二加系列充电电池的数量）乘以1.7V的直流电源。Maxim>AppNotes>BatteryManagementPower-SupplyCircuitsKeywords:switchmodebatterychargers,NiMH/NiCdbatterychargers,stepdownregulators,constant-currentsupplies,dV/dtterminationAug09,2010APPLICATIONNOTE4496NiMH/NiCdSwitchmodeBatteryChargerHasdV/dtChargeTerminationAbstract:Thiscircuitincludesabatterycharger(MAX712)andstep-downswitchingregulator(MAX5089)forhandlingthepowerportionofthecharger.BycontrollingtheregulatortheMAX712actsasabattery-chargecontroller,producingoutputsof7Vto16V.ItoperatesfromanyDCsourcecapableofdeliveringthedesiredfast-chargecurrent,withthiscondition:theoutputvoltagemustequal1.7Vmultipliedbythesumof(twoplusthenumberofbatteriestobechargedinseries).Asimilarv……

摘要：两个电路进行了说明。第一次使用外部Mosfet驱动的李电池充电器集成电路（MAX8814）的权力确定（博爱)输出负载电池和充电不干预从微控制器或系统的软件源之间切换。ICs充电器无博爱输出（如MAX1507），第二个电路会同一开关使用Mosfet和比较器（MAX920）。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4840Maxim>Designsupport>Appnotes>BatteryManagement>APP4840Keywords:loadswitching,rechargeablebattery-poweredsystems,Li+batterychargers,powerOK(POK)outputsFeb10,2011APPLICATIONNOTE4840Battery/ChargerLoadSwitchApproximatesIdealDiodeBy:BudgeIngHubertBugajskiAbstract:Twocircuitsaredescribed.ThefirstusesexternalMOSFETsdrivenbythePowerOK(POK)outputofaLi-cellchargerIC(MAX8814),toswitchaloadbetweenbatteryandchargingsourcewithoutinterventionfromamicrocontrollerorsystemsoftware.ForchargerICswithoutaPOKoutput(……

摘要：通过添加锂蓄电池充电器IC双运放和一些其他的组件，您可以调整到标准锂电池（3.6v4.2v）范围内的任何级别的充电电压。Maxim>DesignSupport>AppNotes>AmplifierandComparatorCircuits>APP4520Maxim>DesignSupport>AppNotes>BatteryManagement>APP4520Keywords:lithium-batterychargers,charge-terminationvoltage,fastcharge,dualopampJul05,2011APPLICATIONNOTE4520ChargingLithiumBatterieswithaNonstandardTerminationVoltageBy:ShastaThomas,ApplicationsEngineerAbstract:Byaddingadualopampandsomeothercomponentstoalithium-battery-chargerIC,youcanadjustthechargingvoltagetoanylevelwithintherangeforstandardlithiumbatteries(3.6Vto4.2V).AsimilarversionofthisarticleappearedintheMarch31,2008issueofEETimesmaga……

RechargealbeBatteriesandtheirchargersRechargeableBatteriesandTheirOptimizedChargersTexasInstrumentsBatteryManagementChallengesSafetyBatteryRun-TimeCapacityPowerconversionefficiencyBatterychargingGasGaugeAccuracyLongerBatteryLifeSmallerSize&WeightSizeandWeightAgendaRechargeableBatteryCharacteristicsandChargingRequirementsPowerPathManagementBatteryCharger3MHzswitchingmodeUSBbatterychargerMulti-cellLiFePO4andLi-IonswitchingmodebatterychargerSummaryRechargeableBatteryCharacteristicsandChargingRequirementsBatteryChemistriesPrimarybattery:Non-rechargeable(Alkaline)Secondarybattery:RechargeableNiCd:1.0Vto1.5VNiMH:1.0Vto1.5VLi-IonLiCoO2-Coke:3.0Vto4.1VLiCoO2-Graphite:3.0Vto4.2VLiMnO4-Graphite:3.0Vto……

BATTERYCHARGERSBATTERYCHARGERSSECTION5BATTERYCHARGERSWaltKester,JoeBuxtonINTRODUCTIONRechargeablebatteriesarevitaltoportableelectronicequipmentsuchaslaptopcomputersandcellphones.Fastchargingcircuitsmustbecarefullydesignedandarehighlydependentontheparticularbattery'schemistry.ThemostpopulartypesofrechargeablebatteriesinusetodayaretheSealed-Lead-Acid(SLA),NickelCadmium(NiCd),Nickel-Metal-Hydride(NiMH),andLithium-Ion(Li-Ion).Li-Ionisfastbecomingthechemistryofchoiceformanyportableapplicationsbecauseitoffersahighcapacity-to-size(weight)ratioandalowself-dischargecharacteristic.RECHARGEABLEBATTERYCONSIDERATIONSINPORTABLEEQUIPMENTnAmp-HourCapacity(C)andCellVoltagenMultipleCellConfigurations:Series/Parallel……