ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,680, issued on May 26, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Photovoltaic power generation system" was invented by Yanzhong Zhang (Shenzhen, China), Zhiwu Xu (Shenzhen, China) and Chongyue Huang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A photovoltaic power generation system includes a single-stage inverter, an anti-backflow circuit, a photovoltaic string, and a coupling capacitor. The anti-backflow circuit is connected to one input end of the single-stage inverter, one output end of the photovoltaic string is connected to the other input end of the single-stage inverter, and the other output en...