UM  > INSTITUTE OF MICROELECTRONICS
Affiliated with RCfalse
Status已發表Published
A Single-Stage Delay-Tuned Active Rectifier for Constant-Current Constant-Voltage Wireless Charging
Bai,Xianglong1,2; Mao,Fangyu1; Lu,Yan1; Zhan,Chenchang2; Martins,Rui P.1,3
2020-12-08
Conference Name2020 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)
Source PublicationProceedings of 2020 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2020
Pages47-49
Conference Date8-10 Dec. 2020
Conference PlaceHa Long, Vietnam
Abstract

This paper presents a single-stage regulated active rectifier with two operation modes of constant-current charging mode (CC) and constant-voltage charging mode (CV) for battery wireless charging. With the delay-tuned active rectifier, the proposed wireless charger can realize AC-DC power rectification, voltage regulation, CC and CV battery charging in a single power stage with high efficiency and small volume. The adaptive tuning of the delay of the power NMOS gate-drive signals, regulates the average charging current at a constant value for the CC mode, and the output voltage for the CV mode. The circuit achieves a precise average AC current sensing with a replica sensing stage. The utilization of a hysteresis comparator detects the output voltage and changes the charging mode during the battery charging process. The proposed single-stage wireless charger, designed in standard 0.35μm CMOS, operates at 6.78MHz. Simulation results show that the efficiency of the entire CC mode is higher than 89.8% with the battery voltage ranging from 2.8V to 4.2V. And we obtain a peak efficiency of 94.3% with 4.2 V and 1A output.

KeywordActive Rectifier Constant Current Constant Voltage Current Sensing Li-ion Battery Charging Single-stage Wireless Charging
DOI10.1109/APCCAS50809.2020.9301663
URLView the original
Indexed ByCPCI-S
Language英語English
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Artificial intelligenceComputer Science, Hardware & Architecture ; Computer Science, Theory & Methods ; Engineering, Electrical & Electronic
WOS IDWOS:000682771300014
Scopus ID2-s2.0-85099545090
Fulltext Access
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorLu,Yan
Affiliation1.University of Macau,Institute of Microelectronics and FST-DECE,State Key Lab of AMS-VLSI,Macao
2.Southern University of Science and Technology,School of Microelectronics,Shenzhen,China
3.Instituto Superior Técnico,Universidade de Lisboa,Portugal
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Bai,Xianglong,Mao,Fangyu,Lu,Yan,et al. A Single-Stage Delay-Tuned Active Rectifier for Constant-Current Constant-Voltage Wireless Charging[C],2020:47-49.
APA Bai,Xianglong,Mao,Fangyu,Lu,Yan,Zhan,Chenchang,&Martins,Rui P..(2020).A Single-Stage Delay-Tuned Active Rectifier for Constant-Current Constant-Voltage Wireless Charging.Proceedings of 2020 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2020,47-49.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Bai,Xianglong]'s Articles
[Mao,Fangyu]'s Articles
[Lu,Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Bai,Xianglong]'s Articles
[Mao,Fangyu]'s Articles
[Lu,Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Bai,Xianglong]'s Articles
[Mao,Fangyu]'s Articles
[Lu,Yan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.