ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,439, issued on Dec. 16, was assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP. LTD (Dongguan, China).
"Power supply device and charging control method" was invented by Senlong Jiang (Dongguan, China), Jialiang Zhang (Dongguan, China), Chen Tian (Dongguan, China), Chih-Wei Chiu (Dongguan, China) and Jun Zhang (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power supply device includes a transformer, a first rectifier, a voltage conversion module, and a control unit. The first rectifier is connected to a primary winding of the transformer, converts a received alternating-current voltage to a first direct-current voltage. The ...