The IGCT (Integrated Gate-Current Converter Thyristor) incorporates innovative technologies including buffer layer, transparent anode, and advanced gate drive, serves as a medium- to high-voltage switching device suitable for power conversion applications exceeding 5MVA. The IGCT is extensively utilized in power systems such as motor drives, energy conservation, wind power generation, marine propulsion, and power quality control. This device has significantly advanced power electronics in terms of power, reliability, efficiency, cost, size, and weight, driving notable improvements across these performance metrics.