In short, an inverter welder is an electric system that regulates voltage, converting the AC power supply into a lower output voltage.
For example, it can convert 240V AC supply into 20V DC output voltage.
This process works by increasing the main power supply’s frequency from 50 hertz to between 20,000 and 100,000 hertz.
Electronic switches turn the power on and off very quickly, allowing the transformer size to be significantly reduced.