ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,425, issued on Jan. 27, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Drive device for rotating electric machine and drive method for rotating electric machine" was invented by Tatsuo Nishimura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive device for a rotating electric machine having a stator including a stator winding and a rotor including a permanent magnet includes: a power conversion circuit which outputs a phase current to the stator winding; and a control unit which controls the power conversion circuit. If a phase voltage crest value relative to a voltage of DC power is defined as a modulation factor, the control unit d...