ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,437, issued on Dec. 16, was assigned to GM Global Technology Operations LLC (Detroit).

"DC fast charging using closed-loop control of multi-functional inverter-based boost converter" was invented by Chandra S. Namuduri (Troy, Mich.) and Rashmi Prasad (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for charging a battery pack via an offboard energy source uses an interleaved boost converter and closed-loop control. The energy source outputs a charging current via a DC charge port during a direct current fast-charging (DCFC) process. A controller detects a voltage disparity condition in which a voltage capability of the battery pa...