NDLI: Modeling of junction temperature and forward voltage of LED devices with externally measurable variables

Content Provider	IEEE Xplore Digital Library
Author	Xuehui Tao Huanting Chen Hui, S.Y.
Copyright Year	2012
Description	Author affiliation: Department of Electrical & Electronic Engineering, The University of Hong Kong, China (Huanting Chen; Hui, S.Y.) \|\| Centre for Power Electronics, City University of Hong Kong, China (Xuehui Tao)
Abstract	Junction temperature (Tj) and forward voltage (VF) of LED devices are two critical LED variables that are not easily obtained in an LED system. While Tj affects reliability and lifetime, VF affects the power for a given current. This paper includes the modeling of Tj and VF based on externally measurable parameters such as heatsink temperature (Ths) and LED forward current (IF). Based on the I–V electrical characteristics, the modeling of Tj is related to the forward current and does not need the information of VF. The modeling of VF is associated with forward current and heat sink temperature instead of junction temperature. Designers can therefore estimate the VF by measuring the forward current IF and Ths, thus avoid the inconvenience of measurement of junction temperature. The established theoretical models for Tj and VF are verified by testing several kinds of LEDs. Very good agreements between the theoretical and practical results have been obtained.
Starting Page	4242
Ending Page	4245
File Size	401685
Page Count	4
File Format	PDF
ISBN	9781467308021
e-ISBN	9781467308038
e-ISBN	9781467308014
DOI	10.1109/ECCE.2012.6342246
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Voltage measurement Current measurement Junction temperature measurements LED modeling Light emitting diodes Mathematical model Junctions Equations
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Junction temperature measurement of a LED street light using forward voltage method

Study of junction temperature effect on electrical power of light-emitting diode (LED) devices

Developing a standard measurement and calculation procedure for high brightness LED junction temperature

Physics related modeling of power LEDs

Light-emitting diode junction-temperature sensing using differential voltage/current measurements

A step forward in multi-domain modeling of power LEDs

Performance Characterization and Theoretical Modeling of Emitted Optical Power for High-Power White-LED Devices

Determination of the junction temperature of Gallium Nitride (GaN)-based high power LED under thermal with current loading conditions

Junction temperature measurement of light-emitting diodes by voltage-temperature relation method

Modeling of junction temperature and forward voltage of LED devices with externally measurable variables

Similar Documents

Junction temperature measurement of a LED street light using forward voltage method

Study of junction temperature effect on electrical power of light-emitting diode (LED) devices

Developing a standard measurement and calculation procedure for high brightness LED junction temperature

Physics related modeling of power LEDs

Light-emitting diode junction-temperature sensing using differential voltage/current measurements

A step forward in multi-domain modeling of power LEDs

Performance Characterization and Theoretical Modeling of Emitted Optical Power for High-Power White-LED Devices

Determination of the junction temperature of Gallium Nitride (GaN)-based high power LED under thermal with current loading conditions

Junction temperature measurement of light-emitting diodes by voltage-temperature relation method

Modeling of junction temperature and forward voltage of LED devices with externally measurable variables