ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,519, issued on July 14, was assigned to HUAWEI DIGITAL POWER TECHNOLOGIES Co. LTD. (Shenzhen, China).

"Photovoltaic inverter and control method thereof" was invented by Wenchao Li (Shanghai), Mingxuan Dong (Shanghai) and Kai Xin (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A photovoltaic inverter includes a conversion circuit, a collection circuit, and a controller. The collection circuit is configured to obtain a positive direct current bus voltage and a negative direct current bus voltage of the conversion circuit. The controller is configured to generate an even-order harmonic voltage regulation signal based on the positive direct cur...