Details

Autor(en) / Beteiligte

• Robert, F.
• Sprooten, J.
• Mathys, P.
• Schauwers, J.-P.
• Velaerts, B.

Titel

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

Ist Teil von

• 2005 European Conference on Power Electronics and Applications, 2005, p.9 pp.-P.9

Ort / Verlag

IEEE

Erscheinungsjahr

2005

Quelle

IEEE Xplore (IEEE/IET Electronic Library - IEL)

Beschreibungen/Notizen

• 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