US Patent Issued to NIDEC on Oct. 27 for "Power conversion device" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,776,727, issued on Oct. 27, was assigned to NIDEC Corp. (Kyoto, Japan).

"Power conversion device" was invented by Kotaro Kataoka (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion device includes a first three-phase full-bridge circuit connected to one end of a three-phase coil of an open-winding three-phase motor, a second three-phase full-bridge circuit connected to another end of the three-phase coil, and a control unit that individually controls voltage application time of the three-phase coil. The control unit minimizes a width of a first time region in which voltage application time of an X-phase coil and voltage appli...