Winding Arrangement for Planar Transformer and Inductor

The invention relates to a winding arrangement ( 31 ) for a planar transformer, in particular for high frequency AC transformation, or for an inductor. In order to provide a winding arrangement ( 31 ) for a planar transformer or for an inductor which exhibits the advantages of planar winding arrangements and reduces or avoids the skin-effect, a winding arrangement ( 31 ) for a planar transformer, in particular for high frequency AC transformation, or for an inductor is proposed including at least two conduction layers ( 37, 39 ), each conduction layer ( 37, 39 ) having an inner hole ( 45 ) and comprising a plurality of conductor paths ( 19, 27 ), which are electrically insulated from each other and which lead from an outer circumference ( 21 ) of said conduction layer ( 37, 39 ) to an inner circumference ( 23 ) of said conduction layer ( 37, 39 ) adjacent to said inner hole ( 45 ) in a spiral form.