US Patent Issued to SOUTH CHINA UNIVERSITY OF TECHNOLOGY on July 1 for "Digitized variable-polarity welding power source based on SiC IGBT" (Chinese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,823, issued on July 1, was assigned to SOUTH CHINA UNIVERSITY OF TECHNOLOGY (Guangdong, China).

"Digitized variable-polarity welding power source based on SiC IGBT" was invented by Zhenmin Wang (Guangdong, China), Junhao Wei (Guangdong, China) and Jianwen Wu (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A digitized variable-polarity welding power source based on SiC IGBT, comprising a main circuit and a control circuit. The main circuit comprises a three-phase rectifying filter circuit, a SiC IGBT primary inverter circuit, a high-frequency transformer, a SiC ultrahigh-frequency rectifying filter output circuit, a SiC IGBT secondary...