ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,256, issued on Oct. 20, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Direct power AC/DC converter" was invented by Luyu Wang (Kista, Sweden), Xiao Zhang (Xi'an, China), Shuyu Ou (Kista, Sweden), Wenbo Sun (Dongguan, China) and Grover Victor Torrico-Bascope (Kista, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A direct power AC/DC conversion apparatus employs a dual branch topology. A first branch includes a first AHB switching network configured to receive an AC grid power and produce an AC power, coupled through a series resonant impedance to a first primary winding of a transformer. The first switching net...