Core Insights - The report from Dongfang Securities indicates that SST (Solid State Transformer) is expected to become the optimal choice for direct current power supply solutions in data centers, with NVIDIA highlighting SST as a mainstream technology in its AIDC white paper [1] - The demand for new power supply solutions like HVDC (High Voltage Direct Current) and SST is clearly defined, driven by the increasing power requirements of AI data centers [1][3] Group 1: Trends in Power Supply Solutions - AIDC (AI Data Center) is experiencing a surge in power demand, with high voltage and high efficiency becoming critical trends [1] - Traditional AC/DC and DC/DC conversion methods lead to efficiency losses and increased maintenance burdens, necessitating more efficient and compact power architectures [1] - NVIDIA's collaboration with industry partners to propose an 800V HVDC power supply architecture aims to significantly enhance power efficiency and reduce electricity costs [1] Group 2: Advantages of SST - SST offers several advantages over traditional transformers, including higher efficiency, better power quality, modularity, and stable performance, which can greatly improve space utilization and power efficiency [1] - SST is projected to become the best choice for direct current power supply solutions in data centers in the long term [1] Group 3: Market Potential for SiC/GaN Devices - The demand for SiC (Silicon Carbide) and GaN (Gallium Nitride) devices is expected to rise due to the implementation of new power supply solutions like HVDC and SST [3] - The market for SiC/GaN devices in 800V HVDC data center power supply systems could reach $2.7 billion by 2030, indicating significant growth potential [3] - NVIDIA's partnerships with various SiC/GaN manufacturers suggest a strong and certain demand for these devices in future AIDC power systems [3] Group 4: Current Market Penetration - As of 2024, the penetration rate of silicon carbide in global power semiconductors is projected to be 4.9%, while gallium nitride is at 0.5% in 2023 [2] - Some investors express concerns about the limited growth potential for wide bandgap semiconductors due to the gradual increase in silicon carbide's penetration in the electric vehicle sector [2]

Investment Rating - The report maintains a "Positive" investment rating for the electronic industry, particularly focusing on the potential growth of SiC/GaN power devices driven by new power supply solutions for AI data centers [6]. Core Insights - The demand for AI servers and data centers is expected to open up growth opportunities for SiC/GaN power devices, with new power supply solutions like HVDC and SST becoming increasingly important [3][11]. - The report highlights that the transition to 800V HVDC power supply architecture is anticipated to significantly enhance power efficiency and reduce operational costs for data centers [9][28]. Summary by Sections 1. AI Data Center Power Requirements - The power requirements for AI data centers are increasing, with single cabinet power rising from 5-8 kW to 20-50 kW, and potentially exceeding 100 kW [19]. - NVIDIA is promoting the transition to an 800V HVDC power supply architecture, which is expected to be fully implemented by 2027 [26][28]. 2. SST (Solid State Transformer) - SSTs are characterized by high efficiency and compact size, making them suitable for modern power supply needs [37]. - The adoption of SST technology is expected to become mainstream in future power supply solutions, significantly improving space utilization and power efficiency in data centers [47]. 3. HVDC and SST Impact on Power Semiconductors - The report indicates that HVDC and SST solutions will enhance the performance requirements for power semiconductors, creating a favorable environment for the penetration of SiC/GaN devices [56]. - The market for SiC/GaN devices is projected to reach $2.7 billion by 2030, driven by their application in 800V HVDC data center power systems [11][68]. 4. SiC/GaN Growth Potential - The report identifies key companies that are well-positioned to benefit from the growth in SiC/GaN devices, including industry leaders like Innoscience and Tianyu Advanced [3][14]. - The penetration rates for SiC and GaN in the power semiconductor market are expected to increase, with forecasts suggesting a rise in demand due to AI computing facilities [68].

Investment Rating - The report maintains a "Positive" investment rating for the electronic industry in China [4] Core Viewpoints - The demand for AI computing facilities is expected to drive the growth of SiC/GaN power devices, opening up new growth opportunities in the industry [2][24] - The report emphasizes that the application potential of SiC/GaN in AI computing facility power supply systems has not been fully explored, and future demand is likely to continue increasing [7][24] Summary by Sections Investment Recommendations and Targets - AI server and data center demand is anticipated to create growth opportunities for SiC/GaN power devices. Key companies to watch include: - GaN industry leader Innoscience - Major power device manufacturers such as Wingtech Technology, China Resources Microelectronics, New Clean Energy, Star Semiconductor, and Tianyue Advanced - Wafer foundry company Chipone Integrated Circuits focusing on SiC power devices - Passive component companies like Farah Electronics and Jianghai Co., Ltd. - Companies in the third-generation semiconductor equipment market like Zhongwei Company [2][29] Industry Dynamics - The report highlights that AI computing facilities will increase the demand for SiC/GaN devices, particularly in high-voltage direct current (HVDC) and power module applications [7][8] - The transition from traditional power supply architectures to higher voltage systems (800V DC) is expected to enhance power transmission efficiency, thus driving the adoption of SiC/GaN devices [10][14] - The report notes that the penetration rate of SiC in global power semiconductors is projected to reach 4.9% by 2024, while GaN's penetration is at 0.5% in 2023, indicating room for growth [21][22] Company Insights - Innoscience is recognized as the global leader in the GaN industry, with a revenue of 830 million yuan in 2024, reflecting a year-on-year growth of 39.8% [30][34] - Wingtech Technology is focusing on semiconductor business growth, with a revenue of 58.4 billion yuan in 2024, and is strategically transforming to enhance its position in the power semiconductor industry [40][44] - China Resources Microelectronics is experiencing steady revenue growth, achieving 10.12 billion yuan in 2024, with a focus on enhancing its SiC/GaN product capabilities [50][51]