ARC WELDING POWER SOURCE

摘要: PROBLEM TO BE SOLVED: To control plurality of small size high frequency transformers with the driving circuit a single inverter, to easily make its handling operation and installing space by connecting inputting sides an equal turn ratio side outputting end inverter circuit, rectifying at each transformers. SOLUTION: A alternating current voltage outputted from 3 is stepped down suitable for welding 4a, 4b, converted direct circuits 21a, 21b, it supplied terminals 23, 24. The 4b are made flow so that output voltages equally, respectively, because have same specification in this executing state, 1/2 respectively wire 21b 4b. In transformer 4, value inside impedance dispersed caused on dispersion production time, further, diode, forward direction step-down dispersed, however, there practically no problems.