US Patent Issued to Siemens on March 3 for "Motor driver and motor driving system" (Chinese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,796, issued on March 3, was assigned to Siemens AG (Munich).

"Motor driver and motor driving system" was invented by Hua Liao (Beijing) and Jun Ping Zhang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Some embodiments of the teachings herein include a motor driver with an input end connected to a three-phase power grid, an output end connected to a motor, a rectifying circuit, a DC link circuit; and an inverter circuit. The inverter circuit has three DC/AC conversion branch circuits connected in parallel between positive and negative output ends of the DC link circuit and each conversion branch circuits has six switching devices. Th...