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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 197

Simple calibration circuit maximizes accuracy in Li-Ion battery management systems

Jon Munson

Abstract

In Li-Ion battery systems, highly accurate measurements of state of charge (SOC) are required to maximize pack performance and longevity. Some applications demand accuracy that is only attainable with a dedicated voltage reference IC, such as the LT1461, which can improve the accuracy of an LTC6802-based battery management system to about 3mV.

Keywords

State of charge measurement

SOC measurement

voltage reference IC

LT1461

LTC6802

battery management system

Introduction

In Li-Ion battery systems it is important to match the charge condition of each cell to maximize pack performance and longevity. Cell life improves by ...

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