Inverter

Kebba is a 22 year old welder from Gambia.

She is an illiterate girl, trained, skilled as a welder.

You see a girl here who is trained as a welder.

We have an inverter in there, so you get 117 volts A.C.

I have two dreams to become an underwater welder and to write a book about this journey.

The IGBTs in an inverter based machine are controlled by a microcontroller, so the electrical characteristics of the welding power can be changed by software in real time, even on a cycle by cycle basis, rather than making changes slowly over hundreds if not thousands of cycles.