A 42nJ/conversion On-Demand State-of-Charge Indicator for Miniature IoT Li-ion Batteries

被引：0

作者：

Jeong, Junwon ^{[1
,2
]}

Jeong, Seokhyeon ^{[2
]}

Kim, Chulwoo ^{[1
]}

Sylvester, Dennis ^{[2
]}

Blaauw, David ^{[2
]}

机构：

[1] Korea Univ, Seoul, South Korea

[2] Univ Michigan, Ann Arbor, MI 48109 USA

来源：

2018 23RD ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC) | 2018年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An energy efficient State-of-Charge (SOC) indication algorithm and integrated system for small IoT batteries are introduced in this paper. The system is implemented in a 180-nm CMOS technology. Based on a key finding that small Li-ion batteries exhibit a linear dependence between battery voltage and load current, we propose an instantaneous linear extrapolation (ILE) algorithm and circuit allowing on-demand estimation of SOC. Power consumption is 42nW and maximum SOC indication error is 1.7%.

引用

页码：281 / 282

页数：2

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