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:
Oct. 30, 2018
Filed:
Nov. 30, 2016
Shenzhen Jasic Technology Co., Ltd., Shenzhen, Guangdong, CN;
Jinlei Zhang, Guangdong, CN;
Lei Pan, Guangdong, CN;
SHENZHEN JASIC TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
The present invention belongs to the technical field of argon arc welding machine, and particularly refers to a welding power supply and an AC-DC argon arc welding machine. The welding power comprises a rectifying and wave-filtering unit, a first inverter unit, a transformer and a hybrid inverter unit connected one by one; the hybrid inverter unit has an unitized structural design that combines a rectifying function with a secondary inverting function through an IGBT or an IGBT half-bridge module integrated internally with FRDs; in this way, not only the types and the number of power devices are reduced, but also a difficulty of wire arrangement of an electric board is reduced, and a condition that power switches work under unbalanced state when the welding machine outputs DC is avoided, so that some problems such as a high power consumption of a traditional circuit structure, a big heat sink and a big fan, a high cost, and a complicated wire arrangement, and so on are solved, and a goal of reducing a weight and a volume of the welding machine, and the cost, and improving a welding effect is achieved.