@inproceedings{MTMT:2692538, title = {A General Multi-domain LED Model and its Validation by Means of AC Thermal Impedance}, url = {https://m2.mtmt.hu/api/publication/2692538}, author = {Poppe, András and Temesvölgyi, Tamás}, booktitle = {29th IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM'13)}, doi = {10.1109/SEMI-THERM.2013.6526818}, unique-id = {2692538}, abstract = {Operating parameters of power LEDs are strongly coupled and are mutually dependent. There have been lots of attempts to provide with different kinds of multi-domain LED models with different complexity. This paper gives an overview of recently published models and suggests a practical approach in which the forward current is split into two parts in a straightforward manner. One current component is derived from the LED’s measured radiant flux directly, the other component is calculated as the difference of the net forward current and this current component associated with light emission. Parameters of the proposed model can be identified by usual means. The paper proposes an AC measurement technique to validate the full implementation of the model.}, year = {2013}, pages = {137-142}, orcid-numbers = {Poppe, András/0000-0002-9381-6716} } @inproceedings{MTMT:2683175, title = {A step forward in multi-domain modeling of power LEDs}, url = {https://m2.mtmt.hu/api/publication/2683175}, author = {Poppe, András}, booktitle = {2012 28th Annual IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM)}, doi = {10.1109/STHERM.2012.6188868}, unique-id = {2683175}, abstract = {Besides their electrical properties the optical parameters of LEDs also depend on junction temperature. For this reason thermal characterization and thermal management plays important role in case of power LEDs, necessitating tools both for physical measurements and simulation. This paper deals with the combined electrical, thermal and optical characterization and multi-domain modeling of power LEDs. The major target is to provide with a model architecture and set of model equations the parameters of which can be all measured using a combined thermal and radiometric and photometric test setup completed with a spectrometer. Current and temperature dependent modeling of the light output of white LEDs is also addressed.}, year = {2012}, pages = {325-330}, orcid-numbers = {Poppe, András/0000-0002-9381-6716} } @inproceedings{MTMT:2613643, title = {Multi-domain simulation and measurement of power LED-s and power LED assemblies}, url = {https://m2.mtmt.hu/api/publication/2613643}, author = {Poppe, András and Farkas, Gábor and Székely, Vladimir and Horváth, György Gábor and Kerecsen Istvánné Rencz, Márta}, booktitle = {Proceedings of the 22nd IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM'06)}, doi = {10.1109/STHERM.2006.1625227}, unique-id = {2613643}, year = {2006}, pages = {191-198}, orcid-numbers = {Poppe, András/0000-0002-9381-6716; Kerecsen Istvánné Rencz, Márta/0000-0003-4183-3853} } @article{MTMT:2606976, title = {Electro-thermal simulation: a realization by simultaneous iteration}, url = {https://m2.mtmt.hu/api/publication/2606976}, author = {Székely, Vladimir and Poppe, András and Kerecsen Istvánné Rencz, Márta and Csendes, A and Páhi, A}, doi = {10.1016/S0026-2692(96)00029-8}, journal-iso = {MICROELECTRON J}, journal = {MICROELECTRONICS JOURNAL}, volume = {28}, unique-id = {2606976}, issn = {0026-2692}, abstract = {After a comparison of major strategies of electro-thermal simulation (the relaxation method and the method of simultaneous iteration) a detailed description of the fundamentals and realization issues of the simultaneous iteration method is given. The paper introduces the SISSSI electro-thermal simulation package which is a recent realization of the latter method, fully integrated into the Cadence Opus design framework. The use of the package as an analogue circuit layout design verification tool is demonstrated through a detailed case study.}, year = {1997}, eissn = {0959-8324}, pages = {247-262}, orcid-numbers = {Poppe, András/0000-0002-9381-6716; Kerecsen Istvánné Rencz, Márta/0000-0003-4183-3853} } @article{MTMT:2607102, title = {Novel Tools for Thermal and Electrical Analysis of Circuits}, url = {https://m2.mtmt.hu/api/publication/2607102}, author = {Székely, Vladimir and Poppe, András}, journal-iso = {ELECTROSOFT}, journal = {ELECTROSOFT}, volume = {1}, unique-id = {2607102}, issn = {0269-9184}, year = {1990}, pages = {234-252}, orcid-numbers = {Poppe, András/0000-0002-9381-6716} }