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电池切换电路制3V的系统-Battery-Switchove
Abstract: Portable systems often require operation from batteries or from a wall adapter. The MAX8865 low-dropout (LDO) linear regulator is used to provide the switchover function while supplying a regulator 2.84V that can deliver 100mA. ...
2009-04-30 1289
Using Dallas' 1-Wire ICs i
Abstract: This application note presents to the reader a recommended Li-Ion battery pack circuit design for using Dallas Semiconductor 1-Wire® products with low-side N-channel safety FETs. Critical design considerations concerning the ...
2009-04-30 1071
Using Dallas Battery Managemen
Abstract: This application note presents to the reader a reference circuit design that allows the use of the Dallas Semiconductor DS2438 battery monitor in a high voltage battery pack. Originally designed for use in battery packs whose vol...
2009-04-30 768
Battery Considerations for Tod
This application note is courtesy of Lou Adams from Tadiran Batteries, Port Washington, NY. Temperature RangeYour battery must work over the temperature range of the finished device. Although this seems obvious many times...
2009-04-30 1130
隔离式电源电信应用-Isolated Power Suppl
Abstract: Simple easy to use high side current sense amps protects power supplies as a result of irregular supply voltage caused by short-circuit conditions. To ensure compliance with all international standards, the desi...
2009-04-30 1133
Technology Changes: From a Por
Abstract: Portable power presents a range of design challenges. While major changes such as new battery technologies make headlines, the minor, almost negligible shifts are arguably more fascinating. The effects of these shifts is often no...
2009-04-30 737
DS2746应用注意事项
DS2746应用注意事项 Abstract: The DS2746 has two auxiliary inputs to allow voltage sampling of resistor divider circuits; these inputs are ideal for measuring thermistor or battery-pack iden...
2009-04-30 743
Lithium-Ion Cell Fuel Gauging
Abstract: This application note describes to the user how to improve remaining capacity estimation for Li-ion battery packs beyond the accuracy level of using a coulomb counter alone. It outlines a methodology using Maxim battery monitor I...
2009-04-30 1062
使用DS2760或DS2761电池监视器多重电池应用-Usi
Abstract: The DS2760 and DS2761 battery monitor and protector are battery management ICs geared mainly for single-cell Li-Ion battery pack applications. Although designed mainly for use in the single cell applications, these devices can be...
2009-04-30 1497
Recommended ESD Protection and
Abstract: This application note presents to the reader a recommended Li-Ion/polymer battery pack circuit reference design using the Dallas Semiconductor DS2438 battery monitor. Special emphasis is placed on placement of the DS2438 in the b...
2009-04-30 737
Inaccuracies of Estimating Rem
Abstract: Implementing a battery fuel gauge can be done in a variety of ways including using voltage measurements or coulomb counting. Although the use of voltage measurement has been a popular method of choice, it does not produce the mos...
2009-04-30 1011
补偿检测电阻自暖气-Compensating for Sen
Abstract: Many of Dallas Semiconductor’s battery monitors contain the option to include an internal sense resistor to measure current. In certain applications, heat generated by the flow of current through the sense resistor can introduc...
2009-04-30 540
双向电流检测与单输出-Bi-directional Curr
Abstract: Battery operated devices often need to monitor both charge and discharge currents. A dual current-sense amplifier and differential amplifier are combined to produce a single output voltage that indicates magnitude and direction o...
2009-04-30 1108
使用DS2751电池电量计在多个电池包应用-Using th
Abstract: The DS2751 Li+/NiMH battery Fuel Gauge IC is designed to monitor single-cell Lithium-ion (Li-ion) or 3-cell NiMH battery packs. However, with the appropriate circuit modifications, the DS2751 fuel gauge can also be used to monito...
2009-04-30 720
DS2740高精度库仑计参考设计-DS2740 High-P
Abstract: The DS2740 High-Precision Coulomb Counter IC can perform the fuel gauging function for a 1-cell Lithium-ion (Li-ion) or 3-Cell NiMH battery pack.The user has a choice of whether to mount the coulomb counter IC in the battery pack...
2009-04-30 3675
DS27xx电量计电路板布局技巧，实现测量误差最小化
摘要：DS27xx系列是Dallas Semiconductor的电量计器件，专门设计用于精密测量电池的流入或流出电流。然而，当采用外部检流电阻时，如果不认真考虑元件布局，则可能会降低检测的精度...
2009-04-30 1036
合理的DS2780线路板布局降低电流测量失调误差
摘要：DS2780电流测量失调误差在很大程度上取决于电路板布局。应尽可能缩小测量环路，以降低电感效应对测量结果的影响。 概述适当的电路板布局对于任何...
2009-04-30 1595
从DS2761升级到DS2762
摘要：DS2762是DS2761引脚兼容的替代产品，两款芯片只有微小的差异。它们具有不同的倒装芯片封装尺寸、不同的上电状态以及不同的DQ、PS滤波器和短路延迟时间，并提供额外的中断...
2009-04-30 1598
Getting Started with the DS278
Abstract: The DS2780K was created to make evaluating the DS2780 Standalone Fuel Gauge easy. The DS2780K Datasheet provides information on connecting the hardware and installing the software on the PC. This Application Note provides a detai...
2009-04-30 1309
简单的表征电路充电节AA电池-Simple Characte
Abstract: This characterization circuit, plus a PC and some software, accurately measures the full discharge cycle for a rechargeable AA cell. Cell capacity and output resistance can easily be determined from the curve resulting from these...
2009-04-30 1130
电池电量计：以精度制胜
摘要：电池电量计用于确定可充电电池中的剩余电量以及在特定工作条件下电池还能持续供电的时间，本应用笔记讨论测量锂离子电池剩余电量所面临的挑战以及面对这些挑战所采...
2009-04-30 2015
DS2786K入门
摘要：DS2786K是专门设计以简化独立式、基于开路电压(OCV)的电量计DS2786的评估。DS2786K数据资料中提供了硬件连接以及在PC上安装软件的相关说明。本应用笔记给出了DS2786K中术语的详...
2009-04-30 726
基于开路电压(OCV)的电量计DS2786
摘要：DS2786是基于开路电压(OCV)的电量计，可报告储存在锂离子(Li+)电池中的总电量。正常工作温度条件下，OCV是理想的锂离子(Li+)电池存储容量指示器。然而，由于电池阻抗随温度...
2009-04-30 1847
DS2786电池电量计在2节锂离子电池包中的使用
摘要：DS2786独立式、开路电压(OCV)检测电量计设计用于单节锂离子(Li+、Li-ion)电池。然而，只需在典型应用电路中添加几个额外器件，DS2786即可用来测量2节锂电池包的电量。本应用笔...
2009-04-30 1039
基于DS2786电路的编程及测试
摘要：本文描述了如何对基于开路电压的电池监视器DS2786的电路进行正确测试。文中给出了测试步骤，依据该步骤可以确认电路安装是否正确。此外，文中还介绍了DS2786安装到电路...
2009-04-30 924
获取锂离子(Li+)电池参数，用于基于开路电压(OCV)的电
摘要：DS2786是一款基于开路电压的电量计，能够报告锂离子电池总储存电量。该器件在出厂前已经建立了理想的OCV曲线，可以精确估算Li+电池的剩余电量。DS2786 OCV电量计的精度可通...
2009-04-30 1092
DS2786电池电量计在2节电池供电系统主机侧的使用
摘要：DS2786独立式、开路电压(OCV)检测电量计针对单节锂离子(Li+)电池包应用设计。然而，只需在典型应用电路中添加几个额外器件，DS2786即可用来测量2节锂离子电池包的电量。本应...
2009-04-30 1027
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