English español
Search
 

Repositorio de la Universidad de Oviedo. > Producción Bibliográfica de UniOvi: RECOPILA > Artículos >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/46847

Title: Power Efficient VLC Transmitter Based on Pulse-Width Modulated DC-DC Converters and the Split of the Power
Author(s): Rodríguez Méndez, Juan
González Lamar, Diego
Fernández Miaja, Pablo
García Aller, Daniel
Sebastián Zúñiga, Francisco Javier
Keywords: High switching frequency
Orthogonal Frequency Division Multiplexing (OFDM)
Visible Light Communication (VLC)
High-Brightness LED (HB-LED)
Issue date: 2018
Publisher: IEEE
Publisher version: http://dx.doi.org/10.1109/TPEL.2018.2830881
Citation: IEEE Transactions on Power Electronics, 34(3), p. 1726 - 1743 (2018); doi:10.1109/TPEL.2018.2830881
Format extent: p. 1726 - 1743
Abstract: Visible Light Communication (VLC) has gained relevance during the last years. It consists in using High-Brightness LEDs (HB-LEDs) both for lighting and for transmitting information changing the light intensity rapidly. However, there are some bottlenecks that are slowing down the deployment of this technology. One of the most important problems is that the HB-LED drivers proposed for addressing high data rates in VLC achieve poor power efficiency. Since these HB-LED drivers must be able to reproduce fast current waveforms, the use of Linear Power Amplifiers (LPAs) has been adopted, which clearly damages the power efficiency of HB-LED lighting. In order to alleviate this problem, a HB-LED driver made up of two DC-DC power converters is presented in this work. One of them is responsible for performing the communication functionality by operating at high switching frequency (10 MHz), whereas the second converter fulfills the illumination functionality by ensuring a certain biasing point. The split of the power allows us to minimize the power delivered by the fast-response DC-DC power converter, which suffers from high switching losses. Thus, the overall efficiency can be maximized for each particular communication scenario and for scenarios with changing conditions
URI: http://hdl.handle.net/10651/46847
ISSN: 1941-0107
0885-8993
Sponsored: Este trabajo cuenta con el apoyo del Gobierno español en el marco del Proyecto MINECO-17-DPI2016-75760-R, la beca FPU14 / 03268 y el Principado de Asturias en el marco del Proyecto FC-15-GRUPIN14-143, el Proyecto SV-PA-17 -RIS3-4, y subvenciones del Fondo Europeo de Desarrollo Regional (FEDER)
Project id.: MINECO/17-DPI2016-75760-R
Principado de Asturias/FC-15-GRUPIN14-143
Principado de Asturias/SV-PA-17-RIS3-4
Appears in Collections:Artículos
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

Files in This Item:

File Description SizeFormat
Powereffic.pdfPostprint3,23 MBAdobe PDFView/Open


Exportar a Mendeley


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

 

Base de Datos de Autoridades Biblioteca Universitaria Consultas / Sugerencias