Abstract
This paper presents a new method to drive multiple LED strings efficiently. The proposed driver is based on single-inductor multiple-output (SIMO) switch-mode converters. Because the proposed driver gets rid of linear current regulators and maintains desired constant current of each string directly, it maximizes the overall efficiency and handles mismatching problems of the conventional driver. The simulation results show excellent performance on four-string LED with four 1W LEDs in each string including individual dimming. The measured efficiency was improved at least by 15% compared with the conventional driver of linear current regulators.
| Original language | English |
|---|---|
| Title of host publication | ISOCC 2012 - 2012 International SoC Design Conference |
| Pages | 483-486 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 2012 International SoC Design Conference, ISOCC 2012 - Jeju Island Duration: 2012 Nov 4 → 2012 Nov 7 |
Other
| Other | 2012 International SoC Design Conference, ISOCC 2012 |
|---|---|
| City | Jeju Island |
| Period | 12/11/4 → 12/11/7 |
Fingerprint
Keywords
- high efficiency
- individual dimming
- LED driver
- SIMO swicth-mode converter
ASJC Scopus subject areas
- Hardware and Architecture
- Electrical and Electronic Engineering
Cite this
High efficiency multi-channel LED driver based on SIMO switch-mode converter. / Yu, Luchen; Zhu, Yuan; Chen, Minjie; Yoshihara, T.
ISOCC 2012 - 2012 International SoC Design Conference. 2012. p. 483-486 6406901.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High efficiency multi-channel LED driver based on SIMO switch-mode converter
AU - Yu, Luchen
AU - Zhu, Yuan
AU - Chen, Minjie
AU - Yoshihara, T.
PY - 2012
Y1 - 2012
N2 - This paper presents a new method to drive multiple LED strings efficiently. The proposed driver is based on single-inductor multiple-output (SIMO) switch-mode converters. Because the proposed driver gets rid of linear current regulators and maintains desired constant current of each string directly, it maximizes the overall efficiency and handles mismatching problems of the conventional driver. The simulation results show excellent performance on four-string LED with four 1W LEDs in each string including individual dimming. The measured efficiency was improved at least by 15% compared with the conventional driver of linear current regulators.
AB - This paper presents a new method to drive multiple LED strings efficiently. The proposed driver is based on single-inductor multiple-output (SIMO) switch-mode converters. Because the proposed driver gets rid of linear current regulators and maintains desired constant current of each string directly, it maximizes the overall efficiency and handles mismatching problems of the conventional driver. The simulation results show excellent performance on four-string LED with four 1W LEDs in each string including individual dimming. The measured efficiency was improved at least by 15% compared with the conventional driver of linear current regulators.
KW - high efficiency
KW - individual dimming
KW - LED driver
KW - SIMO swicth-mode converter
UR - http://www.scopus.com/inward/record.url?scp=84873945037&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873945037&partnerID=8YFLogxK
U2 - 10.1109/ISOCC.2012.6406901
DO - 10.1109/ISOCC.2012.6406901
M3 - Conference contribution
AN - SCOPUS:84873945037
SN - 9781467329880
SP - 483
EP - 486
BT - ISOCC 2012 - 2012 International SoC Design Conference
ER -