UM  > INSTITUTE OF MICROELECTRONICS
Residential Collegefalse
Status已發表Published
A Hybrid Single-Inductor Bipolar Triple-Output DC–DC Converter With High-Quality Positive Outputs for AMOLED Displays
Mao, Fangyu1; Lu, Yan1; Maloberti, Franco2; Martins, Rui P.1,3
2023-01
Source PublicationIEEE Transactions on Circuits and Systems I: Regular Papers
ISSN1549-8328
Volume70Issue:1Pages:506 - 517
Abstract

This paper presents a hybrid single-inductor bipolar triple-output (SIBTO) DC-DC converter for active-matrix organic light-emitting diode (AMOLED) displays. Generating the bipolar rails V OP and V ON for the pixel array and the analog rail AVDD for the source driver with a single inductor greatly reduces the system size and cost. This work adopts the floating negative output topology for an ultra-clean positive output. In addition, we propose a push-pull charge balancer to compensate and regulate the V OP , improving the line and load regulation with continuous currents and acceptable power consumption. This work also proposed a slow-comparator based ordered power distributive control (SC-OPDC) to regulate the AVDD with a pulse-skipping scheme to reduce the power loss. The designed power transistor buffers with adaptive deadtime control improve power conversion efficiency and decrease the required minimum load current of AVDD. The proposed SIBTO converter, implemented in 0.18- μ m BCD process, operates at 1.67 MHz. It achieves a peak efficiency of 94.1% at 0.88 W output and a maximum output power of 3.67 W with an efficiency of 87%. The maximum output voltage ripples are 5 mV, 17 mV, and 7.5 mV for VOP , VON , and AVDD, respectively.

KeywordActive Matrix Organic Light Emitting Diodes Adaptive Deadtime Control Amoled Display Bipolar Triple Output Capacitors Dc-dc Converter Floating Negative Output Hybrid Converter Inductors Ordered Power Distributive Control Pulse Skipping Rails Regulation Single-inductor Multiple Output (Simo) Switches Topology
DOI10.1109/TCSI.2022.3211100
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000865086300001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Scopus ID2-s2.0-85139823408
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Corresponding AuthorLu, Yan
Affiliation1.DECE/FST, University of Macau, State Key Laboratory of Analog and Mixed-Signal VLSI, Institute of Microelectronics, Macao
2.University of Pavia, Department of Electrical, Computer and Biomedical Engineering, Pavia, 27100, Italy
3.Instituto Superior Técnico, Universidade de Lisboa, Lisbon, 1049-001, Portugal
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Mao, Fangyu,Lu, Yan,Maloberti, Franco,et al. A Hybrid Single-Inductor Bipolar Triple-Output DC–DC Converter With High-Quality Positive Outputs for AMOLED Displays[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2023, 70(1), 506 - 517.
APA Mao, Fangyu., Lu, Yan., Maloberti, Franco., & Martins, Rui P. (2023). A Hybrid Single-Inductor Bipolar Triple-Output DC–DC Converter With High-Quality Positive Outputs for AMOLED Displays. IEEE Transactions on Circuits and Systems I: Regular Papers, 70(1), 506 - 517.
MLA Mao, Fangyu,et al."A Hybrid Single-Inductor Bipolar Triple-Output DC–DC Converter With High-Quality Positive Outputs for AMOLED Displays".IEEE Transactions on Circuits and Systems I: Regular Papers 70.1(2023):506 - 517.
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
[Mao, Fangyu]'s Articles
[Lu, Yan]'s Articles
[Maloberti, Franco]'s Articles
Baidu academic
Similar articles in Baidu academic
[Mao, Fangyu]'s Articles
[Lu, Yan]'s Articles
[Maloberti, Franco]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Mao, Fangyu]'s Articles
[Lu, Yan]'s Articles
[Maloberti, Franco]'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.