ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,816, issued on May 19, was assigned to EPC POWER Corp. (Poway, Calif.).
"Cascaded DC modular solid-state transformer" was invented by M A Awal (Poway, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A solid-state transformer system comprises a plurality of isolated DC-DC converter modules, each module having a medium voltage port and a low voltage port. The medium voltage ports are series-connected in each phase of a single-phase or three-phase configuration to form a medium voltage AC interface, and each module comprises two quadrant switches with no active front end. The system includes a controller configured to generate voltage references f...