{{ /porosity_factor_hf_magnetica.png?500 }} A graph of dynamic losses (represented as Rac/Rdc) versus the [[/porosity factor]] at high frequency (so that ratio of wire diameter to [[/skin depth]] is 20.7), after: [[http://www.thayer.dartmouth.edu/inductor/papers/newcalc.pdf|Xi Nan, Sullivan C.R., ''An improved calculation of proximity-effect loss in high-frequency windings of round conductors'', Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual, Vol. 2, p. 853]] porosity_factor_hf_magnetica.png {{page>insert/file-sz-cc}} {{tag>Files Porosity_factor Proximity_loss}}