@misc{NoetzoldBragardFinketal.2015, author = {K. N{\"o}tzold and Michael Bragard and K. Fink and R. Griessel and R. Wegener}, title = {Cascaded H-bridge converter with transformer based cell power balancing in each voltage level : [Patentschrift]}, institution = {Fachbereich Elektrotechnik und Informationstechnik}, type = {patent}, pages = {16 S. : graph. Darst.}, year = {2015}, }