Equivalent Circuit Model of High Power LEDs for VLC Systems

Xicong Li; Zabih Ghassemlooy; Stanislav Zvanovec; Min Zhang; Andy Burton

doi:10.1109/WACOWC.2019.8770209

Equivalent Circuit Model of High Power LEDs for VLC Systems

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

Mathematics, Physics and Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

13 Citations (Scopus)

100 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 language	English
Title of host publication	The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019)
Subtitle of host publication	27-28 April, Shahid Beheshti University, Tehran, Iran
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	90-95
ISBN (Electronic)	9781728137674
ISBN (Print)	9781728137681
DOIs	https://doi.org/10.1109/WACOWC.2019.8770209
Publication status	E-pub ahead of print - 25 Jul 2019
Event	2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) - Tehran, Iran Duration: 27 Apr 2019 → 28 Apr 2019

Conference

Conference	2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)
Period	27/04/19 → 28/04/19

Access to Document

10.1109/WACOWC.2019.8770209

Equi Cir Model-2nd-Sub-XLAccepted author manuscript, 3.25 MB

Cite this

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title = "Equivalent Circuit Model of High Power LEDs for VLC Systems",

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.",

keywords = "LED, equivalent circuit, impedance, impedance matching, driver circuit, bandwidth, carrier lifetime, VLC",

author = "Xicong Li and Zabih Ghassemlooy and Stanislav Zvanovec and Min Zhang and Andy Burton",

year = "2019",

month = jul,

day = "25",

doi = "10.1109/WACOWC.2019.8770209",

language = "English",

isbn = "9781728137681",

pages = "90--95",

booktitle = "The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019)",

publisher = "IEEE",

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note = "2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC) ; Conference date: 27-04-2019 Through 28-04-2019",

}

Li, X , Ghassemlooy, Z, Zvanovec, S, Zhang, M & Burton, A 2019, Equivalent Circuit Model of High Power LEDs for VLC Systems. in The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019): 27-28 April, Shahid Beheshti University, Tehran, Iran. IEEE, Piscataway, NJ, pp. 90-95, 2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC), 27/04/19. https://doi.org/10.1109/WACOWC.2019.8770209

Equivalent Circuit Model of High Power LEDs for VLC Systems. / Li, Xicong ; Ghassemlooy, Zabih; Zvanovec, Stanislav et al.

The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019): 27-28 April, Shahid Beheshti University, Tehran, Iran. Piscataway, NJ : IEEE, 2019. p. 90-95.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Equivalent Circuit Model of High Power LEDs for VLC Systems

AU - Li, Xicong

AU - Ghassemlooy, Zabih

AU - Zvanovec, Stanislav

AU - Zhang, Min

AU - Burton, Andy

PY - 2019/7/25

Y1 - 2019/7/25

N2 - 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.

AB - 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.

KW - LED

KW - equivalent circuit

KW - impedance

KW - impedance matching

KW - driver circuit

KW - bandwidth

KW - carrier lifetime

KW - VLC

U2 - 10.1109/WACOWC.2019.8770209

DO - 10.1109/WACOWC.2019.8770209

M3 - Conference contribution

SN - 9781728137681

SP - 90

EP - 95

BT - The 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC2019)

PB - IEEE

CY - Piscataway, NJ

T2 - 2019 2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)

Y2 - 27 April 2019 through 28 April 2019

ER -

Equivalent Circuit Model of High Power LEDs for VLC Systems

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