B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 9/10 (2006.01)
Patent
CA 2377266
A control system for an electric arc welder performing a welding process between an electrode and a workpiece, which system comprises: a high speed switching type power supply with a controller operated at a switching frequency of at least about 10 kHz with an input current control signal to adjust the output current of the power supply; a first sensor sensing the actual arc voltage; a second sensor sensing the actual arc current; a first circuit for creating a power signal representing the desired real time power level at progressive times during the welding process; a second circuit for creating a function of the sensed actual voltage and the sensed actual current; and a third circuit for adjusting the current control signal in accordance with the difference between the power signal and the function of the actual voltage and current, preferably arc power.
Fulmer Bruce E.
Peters Steven R.
Gowling Lafleur Henderson Llp
Lincoln Global Inc.
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