ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,463, issued on Jan. 27, was assigned to SHANGHAI SIGEYUAN INTELLIGENT TECHNOLOGY Co. LTD. (Shanghai).
"Voltage modulation method and three-level inverter" was invented by Yijin Qin (Shanghai), Ziwei Yu (Shanghai) and Jianwen Sun (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a voltage modulation method and a three-level inverter, belonging to the field of inverter control technologies. The voltage modulation method is applied to a three-level inverter circuit including a neutral line relay. The voltage modulation method includes: determining a desired output voltage for each phase of the three-level inverter circuit; obtaining...