A Four-Phase Gain Control Method to Reduce the Ignited Current Spike of the Laser Diode Using in a Laser Headlight Power Supply Unit

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

Abstract

A laser headlight power supply unit (LHPSU) was implemented and developed to drive laser diodes. The LHPSU possessed with the current error amplifier, the buck-boost converter, and the buck-boost converter controller. In the high ambient air temperature, when the dynamic resistance of the laser diode was increased, the the buck-boost converter operated in the buck mode, and the current error amplifier adopted the proportional-integral control, the laser diode driving current caused a start-up current spike, this over-specified current spike damages to the laser diode configuration, and the optical output power would be decayed. Thus, a four-phase gain control method can be used to reduce the ignited current spike of the laser diode.

Original languageEnglish
Title of host publicationProceedings of 28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021
EditorsAndrzej Napieralski
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages191-196
Number of pages6
ISBN (Electronic)9788363578190
DOIs
Publication statusPublished - 2021 Jun 24
Event28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021 - Lodz, Poland
Duration: 2021 Jun 242021 Jun 26

Publication series

NameProceedings of 28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021

Conference

Conference28th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2021
Country/TerritoryPoland
CityLodz
Period2021/06/242021/06/26

Keywords

  • buck-boost converter
  • error amplifier
  • headlight
  • laser
  • proportional-integral

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation

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