The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2025
Filed:
Jan. 29, 2022
South China University of Technology, Guangdong, CN;
SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangdong, CN;
Abstract
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 inverter circuit and a high-voltage arc stabilizing circuit which are sequentially connected. The control circuit comprises a controller and a power supply control module, and a digitizing tablet, a SiC primary inverter driving module and a SiC secondary inverter driving module which are in connection with the controller via signals.