US Patent Issued to Hitachi Astemo on Aug. 26 for "Drive apparatus of synchronous motor and method for driving synchronous motor" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,301, issued on Aug. 26, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Drive apparatus of synchronous motor and method for driving synchronous motor" was invented by Hiroaki Sato (Tokyo), Hirokazu Matsui (Hitachinaka, Japan), Toshisada Mitsui (Hitachinaka, Japan) and Kohei Myoen (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive apparatus of a synchronous motor includes a current detecting unit that detects a phase current flowing to the synchronous motor and a magnetic pole position estimating unit that estimates a magnetic pole position of a rotor of the synchronous motor. The magnetic pole position estimating u...