ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,309, issued on Aug. 26, was assigned to Allegro MicroSystems LLC (Manchester, N.H.).
"Three-phase motor current measurement" was invented by Serhii Korol (Kyiv, Ukraine), Anton Babushkin (Kyiv, Ukraine), Dmytro Sakharov (Kyiv, Ukraine) and Oleksii Dudnyk (Poltava, Ukraine).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for controlling a three-phase electric motor by determining a duration of current measurement windows within a first pulse width modulation period for measuring motor current using a single shunt coupled to the motor. A duration of a first one of the current measurement windows can be adjusted by a time delta valu...