ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,443, issued on Oct. 7, was assigned to TMEIC Corp. (Chuo-ku, Japan).

"Controller for power conversion system" was invented by Issei Fukasawa (Tokyo) and Masahiro Kinoshita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A controller for a power conversion system includes a determination unit configured to determine whether a current time is in nighttime in an environment of a power converter that is connected to one or both of a direct-current power supply and an alternating-current power supply, and a control unit configured, in a case that the determination unit determines that the current time is in the nighttime, to maintain a switch in a c...