Abstract
This paper presents a LED driver for visible light communication (VLC) application, and the main purpose is to solve the low data rate problem used to be in switching type LED driver. The GaN power device is used to replace the traditional silicon power device of switching LED driver in this paper for the purpose of increasing switching frequency of converter, and then the bandwidth of data transmission can be increased as well. Also, for the purpose of high efficiency, the diode-connected GaN power transistor is utilized to replace the traditional ultrafast recovery diode used to be in switching type LED driver. The proposed LED driver is experimentally evaluated on 350mA output current, and it supports the data of pulse width modulation (PWM) dimming level encoded in pulse position modulation (PPM) scheme for VLC application. The experimental results show that the system's efficiency of 80.8% is achieved with 1Mb/s data rate.
| Original language | English |
|---|---|
| Title of host publication | ICUFN 2016 - 8th International Conference on Ubiquitous and Future Networks |
| Publisher | IEEE Computer Society |
| Pages | 56-58 |
| Number of pages | 3 |
| ISBN (Electronic) | 9781467399913 |
| DOIs | |
| State | Published - 09 08 2016 |
| Event | 8th International Conference on Ubiquitous and Future Networks, ICUFN 2016 - Vienna, Austria Duration: 05 07 2016 → 08 07 2016 |
Publication series
| Name | International Conference on Ubiquitous and Future Networks, ICUFN |
|---|---|
| Volume | 2016-August |
| ISSN (Print) | 2165-8528 |
| ISSN (Electronic) | 2165-8536 |
Conference
| Conference | 8th International Conference on Ubiquitous and Future Networks, ICUFN 2016 |
|---|---|
| Country/Territory | Austria |
| City | Vienna |
| Period | 05/07/16 → 08/07/16 |
Bibliographical note
Publisher Copyright:© 2016 IEEE.
Keywords
- Driver Circuit
- GaN Power Device
- LED Driver Circuit
- VLC
- Visible Light Communication