ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,814, issued on Sept. 30, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Capacitor voltage balancing techniques for multi-level dual active bridge converter" was invented by Jyothiraditya Ramaswamy (Anupuram, India), Karthik Desingu (Puducherry, India), Jackson Wai (Dunlap, Ill.), Ahmed Khalil (Dunlap, Ill.) and Jean Marcos Lobo da Fonseca (Peoria, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Capacitor voltage balancing techniques are described for a 3-level 3-level dual-active-bridge converter that controls the duration of a zero voltage state of the low voltage (LV) and medium (MV) side transformer voltages based on a voltage difference ...