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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...
2009-04-30 798
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 3929
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 1105
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 1690
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 1725
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 1511
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 1304
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 2178
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...
2009-04-30 807
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 1965
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 1203
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 1002
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 1254
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 1107
多种电池组应用的DS2760或DS2761-Multiple
Abstract: This application note presents to the reader a recommended reference circuit design that supports monitoring and control of power delivery to a multiple battery system using the Dallas Semiconductor DS2760 or DS2761 battery monit...
2009-04-30 1562
The FET-OR Connection for Powe
Abstract: This power-supply sequencer senses a loss of the main supply voltage and, by controlling the two FETs, automatically switches the load to the secondary (backup) supply. The Figure 1 circuit provides a "diode-OR"...
2009-04-30 735
使用DS2746确定一个电池包基于识别电阻-Using th
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 identification resistors. This application note describes how to calculat...
2009-04-30 869
电路提供电池反向保护-Circuit Provides Re
A universal problem in battery-operated devices is the threat of damage when an end user (never an engineer) inserts the battery backward. You can avoid damage by inserting a single diode or by using a diode-bridge configuration, but those...
2009-04-30 537
检测和校准1 DS2760锂电池监测与保护器电路-Testi
Abstract: This application note describes to the reader how to properly test a circuit board and battery pack containing a Dallas Semiconductor DS2760 battery monitor and protector. A step-by-step test procedure is provided which can be fo...
2009-04-30 1366
DS276x产品比较-DS276x Product Comp
Abstract: This application note describes the differences between the DS2760 battery monitor and protector and the DS2761 battery monitor and protector. It describes each difference in detail and indicates what, if any, changes would be re...
2009-04-30 888
Overcurrent/Overdischarge Prot
Abstract: This application note describes the use of a current-sense amplifier with internal dual comparators to monitor and protect against too low battery voltage and too high battery current. While written for lead-acid batteries, the c...
2009-04-30 1052
MOSFET驱动器是电池反向保护-MOSFET Driver
Abstract: MOSFET power-switch drivers must be protected from a reverse-battery connection. A small rectifier diode can protect against reversed batteries, but that approach is generally unacceptable for systems in which battery life is cru...
2009-04-30 1469
电路的镍氢电池可单模拟锂电池-Circuit Enables
Abstract: This circuit uses a NiMH cell to replace a lithium battery. Its output simulates the discharge characteristic of a lithium (Li+) battery. IntroductionLithium-based (Li+) batteries are becoming common ...
2009-04-30 620
充电器反接时，DS2784高边nFET保护器的保护电路
摘要：DS2784高边nFET保护器没有针对充电器反接的保护电路。因此，故障状态下，如果充电器反向连接，DC FET将可能处于导通状态。本文介绍了发生充电器反接时可使DC FET保持关闭的...
2009-04-30 1464
利用DS2726在充电器反接时保护Li+电池
摘要：本应用笔记通过简单的设计修改，可以利用DS2726 Li+电池保护器承受负压，在充电器反接时为电池提供保护。 概述充电器反接会损坏DS2726 Li+电池保护器。...
2009-04-30 797
Switch-Mode Supply Charges Bat
In the portable-system power supply of Figure 1, L2 and Q2 are part of an unorthodox battery-charger configuration for the auxiliary switch-mode output (which normally generates a negative bias voltage for LCDs). Combining the battery char...
2009-04-30 1750
升压型DC-DC电压调节器转换为电流源的电池充电-Boost
Abstract: A boost DC-DC controller built with the MAX1771 DC-DC controller makes a simple switch-mode current source that is useful for battery charging. The voltage control loop is disabled so that the current control loop provides regula...
2009-04-30 1415
One-Hour Battery Charger Has S
Because battery charges control power, they resemble regulators in some respects. Linear chargers, for example, are less efficient than switching types when operating at high current and a large VIN - VOUT difference. A linear charger, pow...
2009-04-30 1311
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