摘要：本文描述了如何對基于開路電壓的電池監(jiān)視器DS2786的電路進行正確測試。文中給出了測試步驟，依據該步驟可以確認電路安裝是否正確。此外，文中還介紹了DS2786安裝到電路...

摘要：DS2786是一款基于開路電壓的電量計，能夠報告鋰離子電池總儲存電量。該器件在出廠前已經建立了理想的OCV曲線，可以精確估算Li+電池的剩余電量。DS2786 OCV電量計的精度可通...

摘要：DS2786獨立式、開路電壓(OCV)檢測電量計針對單節(jié)鋰離子(Li+)電池包應用設計。然而，只需在典型應用電路中添加幾個額外器件，DS2786即可用來測量2節(jié)鋰離子電池包的電量。本應...

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...

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"...

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...

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...

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...

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...

Abstract: The DS2761 contains a current offset register that can be utilized by the designer to eliminate inherent offset introduced by the current A/D within the IC. Improper calibration of this register, however, can negate any positive ...

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...

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...

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 ...

摘要：DS2784高邊nFET保護器沒有針對充電器反接的保護電路。因此，故障狀態(tài)下，如果充電器反向連接，DC FET將可能處于導通狀態(tài)。本文介紹了發(fā)生充電器反接時可使DC FET保持關閉的...

摘要：本應用筆記通過簡單的設計修改，可以利用DS2726 Li+電池保護器承受負壓，在充電器反接時為電池提供保護。 概述充電器反接會損壞DS2726 Li+電池保護器。...

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...

Battery Ch...

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...

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...

Quick-Char...