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Thermal Management Strategies for Low- and High-Voltage Retrofit LED Lamp Drivers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00324887" target="_blank" >RIV/68407700:21230/19:00324887 - isvavai.cz</a>

  • Result on the web

    <a href="http://hdl.handle.net/10467/87092" target="_blank" >http://hdl.handle.net/10467/87092</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1109/TPEL.2018.2853119" target="_blank" >10.1109/TPEL.2018.2853119</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Thermal Management Strategies for Low- and High-Voltage Retrofit LED Lamp Drivers

  • Original language description

    Several thermal management strategies for LED drivers designed for high lumen retrofit LED lamps are studied by simulation and experimentation means. Depending on the driver output, two scenarios are analyzed: Low Voltage-High Current (18V-620mA) and High Voltage-Low Current (110V-85mA). Experiments (infrared thermography and thermocouples) and multiscale simulation approaches are used to assist both the lamp and driver board thermal design, as well as the driver proper integration in the lighting system. As a result, a heatsink based on an Aluminum hollow cylinder with polymer axial fins is designed and evaluated. The heatsink assessement is carried out with an LED board, in which the LED junction temperature is modeled and extracted by monitoring the LED board backside temperature. Additional experimentation to better integrate the driver is performed aiming at reducing the contact thermal resistance between the driver and the heatsink and improving the heat removal in the driver housing by including a material with a high thermal conductivity (i.e., dry silica sand or magnesium oxide powder). The proposed solution reduces the LED junction temperature up to 18% with respect to a reference lamp, whereas both drivers depict working temperatures around or below 125°C, when a working temperature of 90°C is considered.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    IEEE Transactions on Power Electronics

  • ISSN

    0885-8993

  • e-ISSN

    1941-0107

  • Volume of the periodical

    34

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    12

  • Pages from-to

    3677-3688

  • UT code for WoS article

    000461254000058

  • EID of the result in the Scopus database

    2-s2.0-85049438382