Tig Welder Inverter Schematic May 2026

High-power IGBTs (Insulated Gate Bipolar Transistors) or MOSFETs arranged in a full or half-bridge configuration. High-Frequency Transformer:

The heart of the machine that "chops" the DC into high-frequency AC (often between 20kHz and 100kHz). Tig Welder Inverter Schematic

Bridge rectifiers and large electrolytic filter capacitors to smooth the DC ripple. Inverter Bridge (The "Switching" Stage): Tig Welder Inverter Schematic

A high-voltage, low-current oscillator circuit that ionizes the air, allowing the arc to jump from the tungsten to the workpiece without physical contact. Tig Welder Inverter Schematic

Operating at high frequencies allows this transformer to be much smaller and lighter than traditional 60Hz transformers. Output Rectification & Smoothing: