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An Off-line Single-Inductor Multiple-Output LED Driver With High Dimming Precision and Full Dimming Range
File(s)
Author(s)
Li, S
Guo, Y
Tan, S-C
Hui, SYR
Type
Journal Article
Abstract
This paper presents a single-inductor multiple-output (SIMO) LED driver with precise dimming and full dimming range. Based on the coordination of a string-level scheme and a system-level dimming scheme, the proposed SIMO LED driver can overcome practical constraints of existing SIMO LED drivers such as limited dimming range and needs for high-current switches. The proposal can achieve dimming precision up to an accuracy of 0.8% and also full dimming range. It has the flexibility of using either phase-shift or synchronous pulsewidth-modulated (PWM) switching for dimming control. The proposed circuit and control operations have been practically verified with a 25-W off-line SIMO-driven LED system. Practical evaluations of its power quality and energy efficiency are also provided.
Date Issued
2016-08-02
Date Acceptance
2016-08-01
Citation
IEEE Transactions on Power Electronics, 2016, 32 (6), pp.4716-4727
URI
DOI
ISSN
0885-8993
Publisher
Institute of Electrical and Electronics Engineers
Start Page
4716
End Page
4727
Journal / Book Title
IEEE Transactions on Power Electronics
Volume
32
Issue
6
Copyright Statement
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000395741900050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
LED driver
pulsewidth-modulated (PWM) dimming
single-inductor multiple output (SIMO)
BACKLIGHT DRIVING SYSTEM
LCD PANELS
STRINGS
METHODOLOGY
TEMPERATURE
DISPLAY
Electrical & Electronic Engineering
0906 Electrical And Electronic Engineering
Publication Status
Published