Output Impedance Improvement Using Coupled Inductors E. Sanchis Kilders, A. Ferreres, J.L. Gasent Blesa, D. Osorno, D. Gilabert, E. Maset, J. Jordán, V. Esteve and J.B. Ejea E3S Web Conf., 16 (2017) 14011 Published online: 23 May 2017 DOI: 10.1051/e3sconf/20171614011