智通财经网·2026-01-15 08:24Core Insights - The fundamental driver of AI power supply solutions is the continuous improvement in single-chip and single-cabinet power levels, with companies like NVIDIA leading the charge in upgrading their AI chips [1] - The power of AI data centers in North America is projected to reach 71GW by 2028, driven by advancements in multi-chip designs such as NVL72 from NVIDIA and Superpod from Google [1] Group 1: Power Supply Evolution - The main directions for AIDC power supply iteration are high power, high voltage, and direct current, with NVIDIA's white paper outlining a clear path from AC to 800V DC solutions [2] - The OCP organization has established ±400V power supply standards, aiming for MW-level cabinet power through direct current supply [2] Group 2: Technological Changes and Growth - The evolution of power supply solutions has led to the development of integrated devices like HVDC Sidecar and SST hosts, which can perform multiple functions such as voltage reduction and power quality improvement [3] - Key challenges in R&D include power conversion modules and high-frequency isolation transformers, with third-generation wide bandgap semiconductors like SiC and GaN being crucial for achieving high voltage and efficiency [3] Group 3: Investment Opportunities - Four key areas for investment consideration include AIDC power hosts (PSU, HVDC, SST), with companies like Sungrow Power (300274.SZ) and Megmeet (002851.SZ) being notable mentions [4] - Energy storage solutions at the station level are highlighted, with companies such as Sungrow Power and Fluence Energy (FLNC.US) being potential investment targets [4] - Core incremental components like solid-state circuit breakers and electronic fuses are also identified, with companies like Liyang Technology (002706.SZ) and Vicor Corporation (VICR.US) being recommended [4] - Third-generation semiconductors like GaN and SiC are emphasized as critical components for future developments [4]