{"title":"A Ripple-Based Real-Time Built-in-Resistance Compensation for Switching Battery Charger Achieving Fast Charging","authors":"Geuntae Park;Seongil Yeo;Chanjung Park;Kunhee Cho","doi":"10.1109/TCSII.2024.3456470","DOIUrl":null,"url":null,"abstract":"This brief describes a real-time built-in-resistance (BIR) compensation for a switching charger designed to achieve fast charging. The proposed BIR detection utilizes the ripple components of the switching charger, enabling the detection of the BIR information at every switching cycle. The proposed BIR compensation can continuously detect the BIR information, thereby allowing the battery to be charged in constant-current (CC) mode for almost the entire charging period. The proposed switching charger has been implemented in a \n<inline-formula> <tex-math>$0.18~\\mu $ </tex-math></inline-formula>\nm CMOS process, occupying a die area of 0.205mm2. The switching charger with the proposed BIR detection can charge in CC mode up to 98%, with CC mode charging time occupying 92.7% of the total charging time. The total charging time is reduced by 38.8% compared to conventional charging architecture. A peak efficiency of 95% is achieved.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"71 11","pages":"4698-4702"},"PeriodicalIF":4.0000,"publicationDate":"2024-09-09","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/10669619/","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 describes a real-time built-in-resistance (BIR) compensation for a switching charger designed to achieve fast charging. The proposed BIR detection utilizes the ripple components of the switching charger, enabling the detection of the BIR information at every switching cycle. The proposed BIR compensation can continuously detect the BIR information, thereby allowing the battery to be charged in constant-current (CC) mode for almost the entire charging period. The proposed switching charger has been implemented in a
$0.18~\mu $
m CMOS process, occupying a die area of 0.205mm2. The switching charger with the proposed BIR detection can charge in CC mode up to 98%, with CC mode charging time occupying 92.7% of the total charging time. The total charging time is reduced by 38.8% compared to conventional charging architecture. A peak efficiency of 95% is achieved.
本简介介绍了一种用于开关充电器的实时内置电阻（BIR）补偿装置，旨在实现快速充电。所提出的 BIR 检测利用了开关充电器的纹波元件，从而能够在每个开关周期检测 BIR 信息。拟议的 BIR 补偿可持续检测 BIR 信息，从而使电池在几乎整个充电期间都能以恒流 (CC) 模式充电。建议的开关充电器已在 0.18~\mu $ m CMOS 工艺中实现，芯片面积为 0.205mm2。采用 BIR 检测技术的开关充电器在 CC 模式下的充电率高达 98%，CC 模式充电时间占总充电时间的 92.7%。与传统充电结构相比，总充电时间缩短了 38.8%。峰值效率达到 95%。
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.
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