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Experimental Determination of Thermal Couplings in Packages Containing Multiple LEDs

Author

Listed:
  • Marcin Janicki

    (Department of Microelectronics and Computer Science, Lodz University of Technology, 90-924 Lodz, Poland)

  • Przemysław Ptak

    (Department of Marine Electronics, Gdynia Maritime University, 81-225 Gdynia, Poland)

  • Tomasz Torzewicz

    (Department of Microelectronics and Computer Science, Lodz University of Technology, 90-924 Lodz, Poland)

  • Krzysztof Górecki

    (Department of Marine Electronics, Gdynia Maritime University, 81-225 Gdynia, Poland)

Abstract

Light Emitting Diodes (LEDs) are the most commonly used light sources. Temperature strongly affects their operation. Considering that multiple devices are often placed in a single housing, thermal couplings between devices become important. This problem is illustrated here based on the example of a light source containing four LEDs in a single package. Thermal analyses are carried out based on measured transient temperature responses. The measurement results are processed employing the Network Identification by Deconvolution method. The obtained results demonstrate clearly that depending on the device mounting manner and applied cooling condition the temperature rise value induced in neighboring devices can exceed 70% of the rise in the heating diode. Consequently, thermal models of such LEDs should consider not only self-heating effects, but also thermal interactions with the other diodes.

Suggested Citation

  • Marcin Janicki & Przemysław Ptak & Tomasz Torzewicz & Krzysztof Górecki, 2023. "Experimental Determination of Thermal Couplings in Packages Containing Multiple LEDs," Energies, MDPI, vol. 16(4), pages 1-8, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1923-:d:1069059
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    References listed on IDEAS

    as
    1. Antoni Różowicz & Henryk Wachta & Krzysztof Baran & Marcin Leśko & Sebastian Różowicz, 2022. "Arrangement of LEDs and Their Impact on Thermal Operating Conditions in High-Power Luminaires," Energies, MDPI, vol. 15(21), pages 1-17, November.
    2. Marc van der Schans & Joan Yu & Genevieve Martin, 2020. "Digital Luminaire Design Using LED Digital Twins—Accuracy and Reduced Computation Time: A Delphi4LED Methodology," Energies, MDPI, vol. 13(18), pages 1-19, September.
    3. Marcin Janicki & Tomasz Torzewicz & Przemysław Ptak & Tomasz Raszkowski & Agnieszka Samson & Krzysztof Górecki, 2019. "Parametric Compact Thermal Models of Power LEDs," Energies, MDPI, vol. 12(9), pages 1-10, May.
    4. Marcin Janicki & Przemysław Ptak & Tomasz Torzewicz & Krzysztof Górecki, 2020. "Compact Thermal Modeling of Modules Containing Multiple Power LEDs," Energies, MDPI, vol. 13(12), pages 1-9, June.
    5. Genevieve Martin & Christophe Marty & Robin Bornoff & Andras Poppe & Grigory Onushkin & Marta Rencz & Joan Yu, 2019. "Luminaire Digital Design Flow with Multi-Domain Digital Twins of LEDs," Energies, MDPI, vol. 12(12), pages 1-28, June.
    Full references (including those not matched with items on IDEAS)

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