ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,257, issued on Sept. 16, was assigned to NIDEC Corp. (Kyoto, Japan).
"Power conversion device and motor module" was invented by Kotaro Kataoka (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion device converts DC power into n-phase AC power. A first voltage and a second voltage lower than the first voltage are applied to the power conversion device, and the power conversion device outputs an n-phase output voltage based on a modulation factor. n is the number of phases of the AC output, and is an odd number of 3 or more. At a low modulation factor equal to or less than a first modulation factor, the output voltage becom...