New 3-level submodules for a modular multilevel converter based HVDC system with advanced features. - Ashish Kumar Sahoo; Ruben Otero-De-Leon; Visweshwar Chandrasekaran; Ned Mohan (IECON, 2013)

A push-pull DC-AC high frequency power electronics transformer for photovoltaic applications. - Ruben Otero-De-Leon; Ned Mohan (IECON, 2014)

Full-bridge Modular Multilevel Converter with High Frequency Link for Photovoltaic applications. - Ruben Otero-De-Leon; Ned Mohan (ISIE, 2015)