Eddy current losses in SMPS transformers round wire windings: a semi-analytical closed-form formula

We provide a new closed-form formula that instantly calculates the 2D high-frequency ohmic losses (skin and proximity effects) in round wire windings. It has been obtained by overwriting the classical definition (shown to be erroneous) of the layer copper factor introduced in 1D analytical theories....

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Bibliographic Details
Published in2005 European Conference on Power Electronics and Applications pp. 9 pp. - P.9
Main Authors Robert, F., Sprooten, J., Mathys, P., Schauwers, J.-P., Velaerts, B.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
Conductors
Copper
Eddy currents
Frequency
Modelling
Power Supply
Proximity effect
Simulation
Skin
Switched-mode power supply
Transformer
Transformers
Uniform resource locators
Wire
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Summary:We provide a new closed-form formula that instantly calculates the 2D high-frequency ohmic losses (skin and proximity effects) in round wire windings. It has been obtained by overwriting the classical definition (shown to be erroneous) of the layer copper factor introduced in 1D analytical theories. Compared to similar previous formulas, the average error is divided by a factor of thousand. Experimental validation is provided
ISBN:9789075815092
9075815093
DOI:10.1109/EPE.2005.219299