ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,466, issued on Sept. 22, was assigned to Huayuan Semiconductor (Shenzhen) Ltd. Co. (Shenzhen, China).

"Synchronous rectification switching power supply circuit and primary switch tube control method" was invented by Haibin Xiao (Shenzhen, China), Mouyan Teng (Shenzhen, China) and Chunming Guo (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a synchronous rectification switching power supply circuit and a control method for a primary switching transistor and an electronic device, one end of a first switching transistor is coupled to a transformer, and the other end thereof is grounded; a second end and a third end of the transforme...