ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,833, issued on Sept. 15, was assigned to ECOLE DE TECHNOLOGIE SUPERIEURE (Montreal).
"Multilevel electric power converter" was invented by Mohammad Sharifzadeh (Montreal, Canada) and Kamal Al-Haddad (Montreal, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is described a power converter for transforming electrical power between direct current (DC) power and alternating current (AC) power. The power converter has a first stage comprising a first branch having a first pair of series-connected switches, a second branch having a second pair of series-connected switches, and a capacitor connected between the first and second branches; a sec...