ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,922, issued on Sept. 23, was assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP. LTD. (Guangdong, China) and POWERLAND TECHNOLOGY INC. (Jiangsu, China).
"Power supply device, circuit control method, and power supply system" was invented by Chen Tian (Guangdong, China), Jingpeng Zhu (Jiangsu, China), Jialiang Zhang (Guangdong, China) and Ming Xu (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power supply device includes: an input rectifier circuit configured to convert a received alternating-current power into a first pulsating direct-current voltage; a first-stage conversion circuit connected with the input rectifier circui...