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I need a bit of help in direction. I have a single phase 110/220v 200amp acdc sqaurewave inverter welder.

Specs Output Power

AC/DC

Input Voltages

110/220V ± 15%, 1-PH, 50/60Hz

Input Current

15A @110V, 30A @220V

Output Current

TIG: 10 – 200A AC/DC

Stick: 30 – 200A AC/DC

Power Factor

0.73

Power Efficiency

80%

Duty cycle @ 40°C (104°F)

60% @150A, 110V

100% @110A, 110V

60% @190A, 220V 100% @150A, 220V

I am going to buy a external welder frequency controller for it but help I need is how can I make a external box that can convert squarewave into sine, soft and triangle with turn of rotary switch? Doesn't need by a masterful product only work. Controller needs be able change waveforms and add adjustable pulse setting to welder. Goal is to either hard wire into welder between welder and output connector or inline between welder output connector and tig torch. I ain't an electronic genius as I need got into it but I did teach myself how to build guitar pickups and can make the. Sound how I want and can wire up a decently complex guitar configuration so with direction and guidance I can accomplish this as well. I did alot of Google but found nothing available as a diy project or commercial available

I need a bit of help in direction. I have a single phase 110/220v 200amp acdc sqaurewave inverter welder. Specs Output Power AC/DC Input Voltages 110/220V ± 15%, 1-PH, 50/60Hz Input Current 15A @110V, 30A @220V Output Current TIG: 10 – 200A AC/DC Stick: 30 – 200A AC/DC Power Factor 0.73 Power Efficiency 80% Duty cycle @ 40°C (104°F) 60% @150A, 110V 100% @110A, 110V 60% @190A, 220V 100% @150A, 220V I am going to buy a external welder frequency controller for it but help I need is how can I make a external box that can convert squarewave into sine, soft and triangle with turn of rotary switch? Doesn't need by a masterful product only work. Controller needs be able change waveforms and add adjustable pulse setting to welder. Goal is to either hard wire into welder between welder and output connector or inline between welder output connector and tig torch. I ain't an electronic genius as I need got into it but I did teach myself how to build guitar pickups and can make the. Sound how I want and can wire up a decently complex guitar configuration so with direction and guidance I can accomplish this as well. I did alot of Google but found nothing available as a diy project or commercial available

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[–] • 1 pt

You're asking to modify KW of power. That's going to be very expensive. You normally modify the signal before it goes into it's power stage.

Totally agree here. Converting a square wave into sine wave would already be challenging in the low voltage side without doing a trick where you control a sine wave oscillator from the frequency of the square wave input using frequency-to-voltage converter to then drive a voltage controlled sine wave oscillator. Doing this at the high power output end, well, I would not know where to start. It certainly would not be something one could do in the garage with minimal electronics knowledge. The dangers are pretty significant too.

[–] • 1 pt

That’s even assuming it has an electronic oscillator and isn’t just driving a transformer overly hard with the ac line.