What are arc welding inverters?

Arc welding inverters are transforming the welding industry with advanced technologies like thyristors, transistors, MOSFETs, IGBTs, and soft-switching techniques. This article explores five types of arc welding inverters, highlighting their unique features and applications.

What is an inverter welder?

An inverter welder is a welding machine that uses solid-state electronic parts to improve efficiency in the electric current conversion. Inverter welding machines are light, portable, and often no bigger than your lunchbox. Also, inverter-based welders often include many digital functions for arc control.

What is a transistorized arc welding inverter?

The main characteristic of the transistorized arc welding inverter is the use of a “high-power switch transistor group” instead of “high-power thyristors” as the high-power switching components of the inverter, and the use of a “clock oscillator” and “V/W circuit” instead of a “constant pulse width generator” and “V/F circuit.”

What is thyristor based arc welding inverter?

Figure 1: Block diagram of main components and basic principle of thyristor-based arc welding inverter. The main components and their functions of the circuit are as follows: (1) Input rectifier (UR1): This is a common single-phase or three-phase rectifier bridge. It converts 50Hz or 60Hz AC voltage into DC voltage.

Why should you use an inverter welder?

Additionally, inverter welders can enhance the arc quality and provide valuable functions that were impossible with the old transformer welders. An inverter welder is a welding machine that uses solid-state electronic parts to improve efficiency in the electric current conversion.

Are inverter welders good for TIG welding?

Inverter welders are particularly beneficial for TIG welding because of their ability to produce stable, low-amperage arcs needed for delicate work. Similar to TIG welding, plasma arc welding uses a plasma torch to create a highly concentrated arc.