Zte Corporation

Shenzhen Jasic Technology Co., Ltd.

Jinlei Zhang

Hui Yang

Lei Pan

Xiaojing Liu

Zhenzhuo Zeng

Jiagen Zhou

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.

Welding source and AC-DC argon arc welding machine

A method, system and terminal for communication between an encryption terminal and an encryption module in a cluster system are provided in the present document. The method includes: when it is required to make an encrypted call, a calling encryption terminal applying to a key management center for a key according to the type of the encrypted call; the calling encryption terminal and a called encryption terminal receiving working keys sent from the key management center, setting respective working states, and synchronizing the working keys and the working states to respective encryption modules; and the encryption module of the calling encryption terminal and the encryption module of the called encryption terminal respectively making an encrypted call by using the working keys. The system includes: a calling encryption terminal, a called encryption terminal and a key management center. The terminal includes: an applying module, a synchronization module and an encryption module.

Method, system, and terminal for communication between cluster system encryption terminal and encryption module

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Shenzhen, China

Jinlei Zhang