A Novel Color Control Method for Multi-Color LED Systems to Achieve High Color Rendering Indexes
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE Energy Conversion Congress and Exposition (ECCE) |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. |
| Pages | 5094-5100 |
| ISBN (electronic) | 9781479973125, 9781479973118 |
| ISBN (print) | 9781479973132 |
| Publication status | Published - Sept 2018 |
Publication series
| Name | IEEE Energy Conversion Congress and Exposition |
|---|---|
| ISSN (Print) | 2329-3721 |
| ISSN (electronic) | 2329-3748 |
Conference
| Title | 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018) |
|---|---|
| Place | United States |
| City | Portland |
| Period | 23 - 27 September 2018 |
Link(s)
Abstract
A novel color control method for multi-color LED systems is proposed. The proposed color control method can achieve high color rendering indexes by approximating the spectral power distributions (SPDs) of black bodies. Peaks of the LED channels are read from outputs of color sensors and the peak ratios are controlled to map with that of lights emitted by black bodies. Compared with previous control methods, the proposed method has the merits of 1) not requiring an accurate electrical-optical system model, 2) requiring only a few spectra data for offline calibration, 3) requiring only RGB color sensors for online operations of tetra-color and penta-color LED systems, 4) providing consistent color with high color rendering index, and 5) being applicable to all multi-color LED systems. The proposed control method is evaluated by applying it to a red-green-blue-amber (RGBA) LED system driven by a buck-type single-inductor-multiple-output (SIMO) LED driver with the LED channels connected in series. Experimental results have verified the effectiveness of the proposed color control method.
Research Area(s)
- CRI, Lighting control, Multi-color LED system, SIMO power conversion
Citation Format(s)
A Novel Color Control Method for Multi-Color LED Systems to Achieve High Color Rendering Indexes. / Zhan, Xiaoqing; Wang, Wenguan; Chung, Henry Shu-hung.
2018 IEEE Energy Conversion Congress and Exposition (ECCE). Institute of Electrical and Electronics Engineers, Inc., 2018. p. 5094-5100 8557848 (IEEE Energy Conversion Congress and Exposition).
2018 IEEE Energy Conversion Congress and Exposition (ECCE). Institute of Electrical and Electronics Engineers, Inc., 2018. p. 5094-5100 8557848 (IEEE Energy Conversion Congress and Exposition).
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
