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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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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