| 摘要 |
PURPOSE:To provide a titled device with which an always correct output value is obtd. with respect to a set value with fast responsiveness by the constitution in which the actual output of the load of a welding machine and the output signal from an output setter are compared and the output control of the load is accomplished by correcting a reference signal. CONSTITUTION:Other conditions are assigned together with the output current value Is assigned by an output setter 1 with a welding machine which outputs current to a load 6 such as a welding arc or the like from an electric power source 7 via an output control part 5. The reference signal Ir corresponding to the Is complying with said conditions is read out in a retrieval part 3 and is supplied through a reference signal correcting part 4 to the part 5. The electric power corresponding to the Ir is supplied to the load 6 in this stage. The output current I0 of the load 6 is detected and is compared with the Is by a comparator 8. The reference signal Ir is corrected in the part 4 according to said deviation and the fresh reference signal I'r is supplied to the part 5. The reference signal corresponding to the Is of the part 2 is rewritten from Ir to I'r. |
