Thin-Film Microtransformer for High Frequency Power Applications Dragan Dinulovic, Alexander Gerfer, Oliver Opitz, Matthias Kaiser, Marc C. Wurz and Lutz Rissing EPJ Web of Conferences, 75 (2014) 06006 Published online: 03 July 2014 DOI: 10.1051/epjconf/20147506006