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Design and Optimization of an Unbalanced-flux Transformer for 1 kW LLC Transformer
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| Author(s) |
Sobhi BARG, Adane HAILU, Souhaib BARG, Kent BERTILSSON |
| Abstract |
Existing works to increase the power density of LLC transformer are mainly based on the MHzapproach. This paper proposes a new LLC transformer design based on the recent introducedconcept called the unbalanced-flux magnetics. The transformer was optimized using Genetic algorithm and iterative optimization approach. The unbalanced-flux transformer was designed and experimentally tested in 1 kW 400/48V LLC converter. The LLC converter is built, and the transformer is successfully up-to 750 W without heatsink and 1 kW with heatsink. The realized realizing power density is 224W/cm3 which is approximately 3x higher than the results in the state-of-the-art. |
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| Filename: | 0149-epe2025-full-08520373.pdf |
| Filesize: | 909.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2025-08-31 by System |
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