ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,493, issued on March 17, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Neutral point clamped inverter and photovoltaic power supply system" was invented by Xudong Wang (Shanghai), Zhaohui Wang (Shenzhen, China) and Lei Shi (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A neutral point clamped inverter and a photovoltaic power supply system include a power module, a switch module, and a control module. The power module may include a power supply and a first capacitor and a second capacitor that are connected in series and then connected in parallel to two ends of the power supply. The switch module may incl...