Equivalent Circuit Model of High Power LEDs for VLC Systems

Xicong Li, Zabih Ghassemlooy, Stanislav Zvánovec, Min Zhang, Andy Burton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

25 Citations (Scopus)
155 Downloads (Pure)

Abstract

The equivalent circuit model for two commercial high power LEDs for illuminance is proposed and extensive measurements have been carried out to verify the accuracy of the model. In addition, the frequency response of two LEDs in the optical domain can be estimated using the transfer function of electrical equivalent circuit. It is shown that, the electrical parasitics in the chip and packaging introduce significant attenuation beyond a resonance frequcency. Care should be taken when designing high-speed driver and/or equalization circuits for VLC systems.
Original languageEnglish
Title of host publicationThe 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019)
Subtitle of host publication27-28 April, Shahid Beheshti University, Tehran, Iran
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages90-95
Number of pages6
ISBN (Electronic)9781728137674
ISBN (Print)9781728137681
DOIs
Publication statusPublished - Apr 2019
Event2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) - Tehran, Iran
Duration: 27 Apr 201928 Apr 2019

Conference

Conference2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)
Period27/04/1928/04/19

Keywords

  • Bandwidth
  • Carrier lifetime
  • Driver circuit
  • Equivalent circuit
  • Impedance
  • Impedance matching
  • LED
  • VLC

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