318 IGBT CARD

The 318 IGBT card (often referred to as 318X-IGBT-Card or part of the ZX7-318 series) is a high-performance, inverter-based driver board used primarily in 300A-350A professional, single, or three-phase ARC/MMA welding machines. It acts as the "brain" or power management unit, translating control signals into high-frequency switching for the IGBT transistors.