A Tri-Mode Reconfigurable DC-DC Converter With Photovoltaic Energy Harvesting for Miniature IoT Batteries

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-08-02 DOI:10.1109/TCSII.2024.3437449

Junyoung Maeng;Inho Park;Jinwoo Jeon;Hyunjin Kim;Hoi Lee;Chulwoo Kim

{"title":"A Tri-Mode Reconfigurable DC-DC Converter With Photovoltaic Energy Harvesting for Miniature IoT Batteries","authors":"Junyoung Maeng;Inho Park;Jinwoo Jeon;Hyunjin Kim;Hoi Lee;Chulwoo Kim","doi":"10.1109/TCSII.2024.3437449","DOIUrl":null,"url":null,"abstract":"This brief proposes a reconfigurable DC-DC converter for an energy-harvesting system with a tri-mode recharging method for miniature Internet of Things (IoT) batteries operating at various temperatures. The proposed system and IoT battery operate at temperatures as low as –\n<inline-formula> <tex-math>$5~^{\\circ }$ </tex-math></inline-formula>\nC with an internal resistance \n<inline-formula> <tex-math>$(R_{INT})$ </tex-math></inline-formula>\n of up to 1.9 k\n<inline-formula> <tex-math>$\\Omega $ </tex-math></inline-formula>\n. The proposed recharging method utilizes a low-dropout regulator and DC-DC converter with a negative inductor current to rapidly recharge a storage capacitor \n<inline-formula> <tex-math>$(C_{STOR})$ </tex-math></inline-formula>\n and isolate the IoT battery from the \n<inline-formula> <tex-math>$C_{STOR}$ </tex-math></inline-formula>\n. With a 180 nm CMOS process, the charge of the \n<inline-formula> <tex-math>$C_{STOR}$ </tex-math></inline-formula>\n can be restored rapidly with the aid of the IoT battery, which reduces the ratio of the activation time \n<inline-formula> <tex-math>$(t_{\\mathrm {ACT}})$ </tex-math></inline-formula>\n to the recharging time \n<inline-formula> <tex-math>$(t_{\\mathrm {RCHG}})$ </tex-math></inline-formula>\n to 0.27 at –\n<inline-formula> <tex-math>$5~^{\\circ }$ </tex-math></inline-formula>\nC.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"71 12","pages":"4844-4848"},"PeriodicalIF":4.0000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Circuits and Systems II: Express Briefs","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10621596/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

This brief proposes a reconfigurable DC-DC converter for an energy-harvesting system with a tri-mode recharging method for miniature Internet of Things (IoT) batteries operating at various temperatures. The proposed system and IoT battery operate at temperatures as low as –

$5~^{\circ }$

C with an internal resistance

$(R_{INT})$

of up to 1.9 k

$\Omega $

. The proposed recharging method utilizes a low-dropout regulator and DC-DC converter with a negative inductor current to rapidly recharge a storage capacitor

$(C_{STOR})$

and isolate the IoT battery from the

$C_{STOR}$

. With a 180 nm CMOS process, the charge of the

$C_{STOR}$

can be restored rapidly with the aid of the IoT battery, which reduces the ratio of the activation time

$(t_{\mathrm {ACT}})$

to the recharging time

$(t_{\mathrm {RCHG}})$

to 0.27 at –

$5~^{\circ }$

查看原文本刊更多论文

用于微型物联网电池的具有光伏能量收集功能的三模可重构 DC-DC 转换器

本论文提出了一种用于能量收集系统的可重构直流-直流转换器，该系统采用三模式充电方法，适用于在各种温度下工作的微型物联网（IoT）电池。所提出的系统和物联网电池可在低至 - $5~^{\circ }$ C 的温度下工作，内阻 $(R_{INT})$ 高达 1.9 k $\Omega $。所提出的充电方法利用低压差稳压器和具有负感应电流的 DC-DC 转换器为存储电容器 $(C_{STOR})$ 快速充电，并将物联网电池与 $C_{STOR}$ 隔离。利用 180 nm CMOS 工艺，可以借助物联网电池快速恢复 C_{STOR}$ 的电荷，从而在 - $5~^{\circ }$ C 时将激活时间 $(t_{\mathrm {ACT}})$ 与充电时间 $(t_{\mathrm {RCHG}})$ 的比值降至 0.27。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.