A high-power laser diode driver in vehicle headlight application

Kai Jun Pai, Lin De Qin, Sheng Yi Tang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The high-power laser diode driver (HPLDD) that combines the buck-boost converter (BBC) and feedback controllers was designed and implemented for the vehicle headlights. The buck-boost converter could be operated in all conversion modes including step-up, step-down, and step-up-down, with variable battery voltages input to the HPLDD. Moreover, the feedback controllers composed of a voltage-loop controller (VLC) and a current-loop controller (CLC) to control the BBC's output voltage and current to drive high-power laser diodes (HPLDs). In the start-up phase, when the BBC output side is operated from the constant-voltage mode and changed to the constant-current mode, a current overshoot occurs, which can damage the high-power laser diodes. This paper proposed a control method, the proportional-switching-proportional-integral control technology, can be used to the CLC to reduce the start-up current overshoot.

Original languageEnglish
Title of host publicationIGBSG 2018 - 2018 International Conference on Intelligent Green Building and Smart Grid
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781538606612
DOIs
Publication statusPublished - 2018 Jun 22
Externally publishedYes
Event3rd International Conference on Intelligent Green Building and Smart Grid, IGBSG 2018 - Yilan, Taiwan
Duration: 2018 Apr 222018 Apr 25

Publication series

NameIGBSG 2018 - 2018 International Conference on Intelligent Green Building and Smart Grid

Conference

Conference3rd International Conference on Intelligent Green Building and Smart Grid, IGBSG 2018
Country/TerritoryTaiwan
CityYilan
Period2018/04/222018/04/25

Keywords

  • Buck-boost converter
  • High-power laser diode
  • Vehicle headlights

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Fingerprint

Dive into the research topics of 'A high-power laser diode driver in vehicle headlight application'. Together they form a unique fingerprint.

Cite this