Show simple item record

Efficient Visible Light Communication Transmitters Based on Switching-Mode dc-dc Converters

dc.contributor.authorRodríguez Méndez, Juan 
dc.contributor.authorGonzález Lamar, Diego 
dc.contributor.authorGarcía Aller, Daniel 
dc.contributor.authorFernández Miaja, Pablo 
dc.contributor.authorSebastián Zúñiga, Francisco Javier
dc.identifier.citationSensors, 18(4), (2018); doi:10.3390/s18041127
dc.description.abstractVisible light communication (VLC) based on solid-state lighting (SSL) is a promising option either to supplement or to substitute existing radio frequency (RF) wireless communication in indoor environments. VLC systems take advantage of the fast modulation of the visible light that light emitting diodes (LEDs) enable. The switching-mode dc-to-dc converter (SMCdc-dc) must be the cornerstone of the LED driver of VLC transmitters in order to incorporate the communication functionality into LED lighting, keeping high power efficiency. However, the new requirements related to the communication, especially the high bandwidth that the LED driver must achieve, converts the design of the SMCdc-dc into a very challenging task. In this work, three different methods for achieving such a high bandwidth with an SMCdc-dc are presented: increasing the order of the SMCdc-dc output filter, increasing the number of voltage inputs, and increasing the number of phases. These three strategies are combinable and the optimum design depends on the particular VLC application, which determines the requirements of the VLC transmitter. As an example, an experimental VLC transmitter based on a two-phase buck converter with a fourth-order output filter will demonstrate that a bandwidth of several hundred kilohertz (kHz) can be achieved with output power levels close to 10Wand power efficiencies between 85% and 90%. In conclusion, the design strategy presented allows us to incorporate VLC into SSL, achieving high bit rates without damaging the power efficiency of LED lightingspa
dc.description.sponsorshipThis work has been supported by the Spanish Government under Project MINECO-15-DPI2014-56358-JIN, the scholarship FPU14/03268 and the Principality of Asturias under the Project SV-PA-17-RIS3-4 and by European Regional Development Fund (ERDF) grantsspa
dc.relation.ispartofSensors, 18(4)spa
dc.rights© J. Rodríguez Méndez et al., con licencia de Molecular Diversity Preservation International, Basilea, Suiza
dc.rightsCC Reconocimiento - No comercial - Sin obras derivadas 4.0 Internacional
dc.subjectVisible light communication (VLC)spa
dc.subjectLight emitting diode (LED)spa
dc.subjectSwitching-mode dc-to-dc converter (SMCdc-dc)spa
dc.titleEfficient Visible Light Communication Transmitters Based on Switching-Mode dc-dc Convertersspa
dc.relation.projectIDPrincipado de Asturias-FEDER/SV-PA-17-RIS3-4

Files in this item


This item appears in the following Collection(s)

Show simple item record

© J. Rodríguez Méndez et al., con licencia de Molecular Diversity Preservation International, Basilea, Suiza
This item is protected with a Creative Commons License