ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,954, issued on June 9, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Power supply apparatus, three-phase transformer circuit, and charging pile" was invented by Denghai Pan (Shenzhen, China), Yuping Qiu (Dongguan, China) and Jiansheng Chen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power supply apparatus, a three-phase transformer circuit, and a charging pile. The power supply apparatus includes a turns ratio switching circuit, a connection relationship switching circuit, a three-phase transformer, and two three-phase rectifier bridge circuits. A three-phase primary winding of the three-phase tr...