A Hall sensor in a welding machine measures electrical currents by detecting the magnetic fields generated during operation. This non-contact method ensures accurate monitoring of both direct and alternating currents, contributing to the machine’s efficiency and safety. For example, the TKC100BR Hall sensor is designed to measure currents up to 100A with a 4V output, providing precise feedback essential for consistent welding performance. Integrating Hall sensors into welding equipment enhances control over welding parameters, leading to improved weld quality and reduced energy consumption.