Impulsive arc welding powder supply
A technology of welding power supply and pulsed arc, which is applied in arc welding equipment, welding equipment, manufacturing tools, etc., and can solve problems such as the inability to manage the arc length
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[0030] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0031] figure 1 It is a block diagram of the pulse arc welding power supply according to the embodiment of the present invention. Hereinafter, each block will be described with reference to the drawings.
[0032] The power supply main circuit PM takes a commercial AC power supply (3-phase 200V, etc.) as input, performs output control such as inverter control and chopper control based on the following current error amplification signal Ei, and outputs welding voltage Vw suitable for welding and Welding current Iw. The welding wire 1 is fed inside the welding torch 4 by the rotation of a wire feed roller (roll) 5 of the wire feeding device, and an arc 3 is generated between the welding wire 1 and the base material 2 .
[0033] The voltage detection circuit VD detects the aforementioned welding voltage, and outputs a welding voltage detection signal Vd. The reference ...
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