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AssigneeFronius International GmbH
InventorsFranz Hofmanninger, Christoph Ramsauer
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Embodiments reduce the draining of HF ignition energy via a data line for data transmission between a welding device and another part of a welding assembly. A decoupling apparatus is provided, in which a first data line portion of the data line is connected to a first coupling element and a second data line portion of the data line is connected to a second coupling element. The first coupling element and the second coupling element are interconnected via a wireless coupling path for galvanic separation of the data line, and a separate power supply is provided for each of the first coupling element and the second coupling element. The power supplies of the first coupling element and the second coupling element are decoupled from one another for a HF voltage on the data line as a result of the HF ignition voltage.
A welding assembly with a welding device and a welding component connected to the welding device and with a HF ignition unit for generating a HF ignition voltage for HF ignition of an arc for welding, a data line being provided between the welding device and the welding component, and data communication between the welding device and the welding component being implemented via the data line, wherein a decoupling apparatus is provided in which a first data line portion of the data line is connected to a first coupling element and a second data line portion of the data line is connected to a second coupling element, and the first coupling element and the second coupling element being interconnected via a wireless coupling path for galvanic separation of the data line, and in that and wherein a separate power supply is provided for each of the first coupling element and the second coupling element, and the power supplies of the first coupling element and of the second coupling element are decoupled from one another for a HF voltage on the data line as a result of the HF ignition voltage.
A method for decoupling a data line from a HF voltage on the data line, data being exchanged, via the data line, between a welding device and a welding component connected to the welding device, and a HF ignition voltage for HF ignition of an arc for welding with the welding device being generated with a HF ignition unit, the HF ignition voltage generating the HF voltage on the data line, wherein the data line is galvanically separated into a first data line portion and a second data line portion, and the first data line portion is connected to a first coupling element and the second data line portion is connected to a second coupling element, and the first coupling element and the second coupling element being interconnected via a wireless coupling path, wherein the first coupling element and the second coupling element are each supplied with power by a separate power supply and the power supplies of the first coupling element and of the second coupling element are decoupled from one another for the HF voltage on the data line.
Dependencies are inferred from the claim text.