Electronic welding current generator for pulsed-arc welding

The invention relates to an electronic welding current generator for pulsed arc welding, having a controllable by electrical reference variables power unit, which can be specified via electronic circuits, wherein in pulse mode (T) each during the pulse phases (tp) a higher generator pulse current (Ip) or a higher generator pulse voltage (Up) and in each case during the basic phases (tG) a lower generator base current (IG) or generator base voltage (UG) are producible. Starting from the Up-IGModulation during the pulse phases (tp) the pulse voltage (Up) and during the basic phases (tG) the base current (IG) regulated; during the basic phases (tG), the basic voltage (UG), the measured value (E) is stored and updated after each pulse period (T), the updated measured value (E) of the basic voltage (UG) in direct proportionality to the real acting length (LL) of the arc. This updated measurement (E) is used to control the welding process by comparing the reading (E) representing the length (LL) of the arc with an arc length adjustable setpoint (SWLL) and a downstream PI controller is strengthened, with the aim of the above-mentioned management system.