Multi-domain compact modeling of LEDs: An overview of models and experimental data

Poppe, A.

doi:10.1016/j.mejo.2015.09.013

Cited by 69 publications

(52 citation statements)

References 18 publications

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“…The multi-domain LED model presented earlier [6], [7], [8] was implemented as a subcircuit, utilizing the full electro-thermal simulation capabilities [13] of the most recent release of Mentor Graphics' ELDO Spice compatible circuit simulator. In this program it is possible to define a thermal node inside an electro-thermal subcircuit.…”

Section: An Application Examplementioning

confidence: 99%

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Creating multi-port thermal network models of LED luminaires for application in system level multi-domain simulation using spice-like solvers

Poppe

Hegedüs

Szalai

et al. 2016

2016 32nd Thermal Measurement, Modeling &Amp; Management Symposium (SEMI-THERM)

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The multi-domain operation of LEDs characterized by the tight coupling between their electrical, thermal and optical properties manifests not only on chip and package level, but has to be tracked on LED products of higher integration level such as LED modules or LED luminaires. At present the system level numerical analysis of such integrated LED products is typically performed by the different design teams dealing with the electrical, thermal and optical design separately. One reason of this practice is the lack of a unified modeling approach in which the right models are used for the chip, package, module and luminaire (system) level. Spice-like LED models can address this issue. The present paper describes how thermal network models of luminaires can be created in an automated way to allow system level multi-domain simulations of complete LED luminaires.

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Section: An Application Examplementioning

confidence: 99%

“…The suggested model is suitable for implementation in Spicelike circuit simulators either directly or by means of properly chosen macro models [7]. A detailed overview of Spice like chip level multi-domain modeling of LEDs was also published recently in a journal paper [8].…”

Section: Introductionmentioning

confidence: 99%

Creating multi-port thermal network models of LED luminaires for application in system level multi-domain simulation using spice-like solvers

Poppe

Hegedüs

Szalai

et al. 2016

2016 32nd Thermal Measurement, Modeling &Amp; Management Symposium (SEMI-THERM)

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“…With this set of data in 2015 we tested different sets of equations (used in built-in diode models of nonlinear circuit simulation programs) aimed at modelling the temperature dependence of the diode characteristics. Our results have been published in an overview paper about Spice-like modelling of power LEDs [40]. A basic description of our LED modelling activities has also been provided in Hungarian in the 2014-2015 yearbook of the Hungarian Lighting Association (VTT) [64].…”

Section: Multi-domain Characterization Of Power Leds and Their Coolinmentioning

confidence: 99%

BME VIK Annual Research Report on Electrical Engineering and Computer Science 2015

Vajk¹,

Harsányi

Poppe

et al. 2016

Period. Polytech. Elec. Eng. Comp. Sci.

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PrefaceThroughout László Vajta, Dean of BME VIK János Levendovszky, Deputy Dean of BME VIK Department of Automation and Applied InformaticsDepartment of Automation and Applied Informatics (AUT) is one of the largest and dynamically developing departments at BME with diverse scope competences such as control theory, embedded systems, software modelling, applied software development, Internet of Things, power electronics, mechatronics, and many others. The department's main activities are education, research and development. Training versatile electrical and software engineers with solid practical knowledge is our top priority. Our profile also includes developing high quality software and hardware solutions for industry partners. All of our activities are backed by strong research background.In 2015, the department has organized the 21 st European Wireless (EW) Conference. The EW 2015 conference hosted more than 140 participants from 30 different countries. The 2015 edition of EW was aimed at addressing a key theme on "5G and beyond."The next sections summarize the key research results of the department in year 2015. IoT and Smart CityThe Internet of Things (IoT) is transforming the surrounding physical objects into an ecosystem of information that enriches our everyday life. The IoT represents the convergence of advances in miniaturization, wireless connectivity, and increased data storage, and is driven by various sensors. Application and service development methods and frameworks are required to support the realization of solutions covering data collection, transmission, data processing, analysis, reporting, and advanced querying. Our SensorHUB framework URBMOBI is a mobile environmental sensor that (i) provides temporally and spatially distributed environmental data, (ii) fulfills the need for monitoring at various places without the costs for a large number of fixed measurement stations, (iii) integrates small and precise sensors in a system that can be operated on buses, trams, or other vehicles, (iv) concentrates on urban heat and thermal comfort, and (v) aims at providing climate services and integration with real-time climate models.utilizes the state-of-the-art open source technologies and provides a unified tool chain for IoT related application and ser-URBMOBI project has been worked out between 2013 and 2015 by the following consortium: RWTH Aachen University (Germany), Netherlands Organization for Applied Scientific Research TNO (Netherlands), ARIA Technologies (France), Budapest University of Technology and Economics (Hungary), and Meteorological and Environmental Earth Observation (Italy).The SOLSUN (Sustainable Outdoor Lighting & Sensory Urban Networks) project is about to demonstrate how intelligent city infrastructure can be created in a cost-effective and sustainable way by reusing existing street lighting as the communications backbone. We apply different technologies and methods to reduce energy consumption at the same time as turning streetlights into nodes on a scalable network that is al...

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“…Therefore, several dc-dc converters have recently been proposed to feed power LEDs [1][2][3][4][5][6]. The simulations of these systems must be carried out with a reliable LED model so that the complete system behaviour can be investigated [7][8][9][10][11][12][13][14]. For that reason, an LED model that represents the electrical behaviour of the power LED with acceptable accuracy and with a simple parameter estimation process will be an excellent tool for electronic engineers, in order to perform a suitable analysis and simulation of power LED-dc-dc converter systems.…”

Section: Introductionmentioning

confidence: 99%

“…The LED parameters are evaluated by means of straightforward measurements of current and voltage with the help of conventional instruments like multimeter and oscilloscope, which are available in a conventional electronic laboratory. Presently, there are some models proposed in the literature [7][8][9][10][11][12][13][14][15][16][17][18], but they are difficult to use, because they have several optical and thermal parameters to be extracted like for example the LED junction temperature.…”

Section: Introductionmentioning

confidence: 99%

Simplified electrical modelling of power LEDs for DC–DC converter analysis and simulation

Osorio

Alonso

Pinto

et al. 2017

Circuit Theory & Apps

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SUMMARYThis paper presents a model of power light emitting diodes (LEDs) based on electrical variables and considering the concept of LED 'equivalent resistance', which has previously been used in discharge lamp modelling and is suitable to achieve fast simulations of LED converter systems. The model can be obtained with only some simple electrical measurements, thus making its implementation quite straightforward. The proposed model is oriented to the electronic engineering area, and it has special application for the simulation of the electrical behaviour of LEDs and dc-dc converter systems by using software like Simulink. In addition, the proposed model can also be employed for the theoretical analysis and design of LED drivers. Experimental and simulation results are obtained proving the feasibility of the proposed model.

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Multi-domain compact modeling of LEDs: An overview of models and experimental data

Cited by 69 publications

References 18 publications

Creating multi-port thermal network models of LED luminaires for application in system level multi-domain simulation using spice-like solvers

Creating multi-port thermal network models of LED luminaires for application in system level multi-domain simulation using spice-like solvers

BME VIK Annual Research Report on Electrical Engineering and Computer Science 2015

Simplified electrical modelling of power LEDs for DC–DC converter analysis and simulation

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