Patent ID: 11945058
Assignee: FRONIUS INTERNATIONAL GMBH
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. A welding current source for performing a simultaneous welding process on at least one workpiece, wherein the welding current source has a synchronization unit, which, in a first mode for the synchronization with a further similar welding current source which is connected to a common alternating network, is configured to generate a reference signal on a basis of a voltage curve of a phase conductor of the common alternating current network selected for the welding current source with synchronization information prior to performing the welding process and to output the reference signal to the further similar welding current source, and/or, in a second mode, to measure or to receive a reference signal output by the further similar welding current source, and to evaluate the synchronization information contained in the reference signal, and, on a basis of the synchronization information, to synchronize a welding current of the welding current source with a welding current of the further similar welding current source prior to performing the welding process, wherein the synchronization information provides for an identification of the selected phase conductor by means of the further similar welding current source.