1.High-performance microprocessor controls charging and discharging processes, revolutionizing traditional delay relay control methods to significantly enhance charging/discharging speeds. 2. Multiple detection mechanisms prevent simultaneous activation of charging/discharging modules that could cause component damage or electric furnace filament failure. The controller automatically activates protection mode even when thyristor discharge circuits short-circuit due to faults or aging, ensuring circuit safety. 3. Automatic compensation for capacitor leakage current maintains voltage stability. Manual welding voltage settings trigger real-time capacitor voltage adjustments. 4. Automatic fault detection and alarm system for welding machines. 5. Multi-welding specification storage for user customization. 6. 4-bit welding counter: Automatically increments during welding (0-9999 range) with manual reset capability. 7. Real-time capacitor voltage monitoring: Discharge only when voltage reaches preset threshold with ≤1% error margin.