公众号记得加星标⭐️，第一时间看推送不会错过。 塑造电力电子的未来：GaN 在关键高增长市场的扩张 下一波扩张预计将出现在汽车市场，向电气化和高级驾驶辅助系统的转变正在推动传统功率器件的极限。GaN 器 件如今已广泛应用于 LiDAR 系统，而 GaN 车载充电器 (OBC) 有望成为下一个销量驱动力。非车载直流充电器和 牵引逆变器正随着更多参考设计的出现而日趋成熟。预计汽车和移动出行市场将从 2024 年到 2030 年以 **73% 的惊人复合年增长率（CAGR）**增长。 同样，超大规模数据中心正在寻求能效解决方案来管理不断增长的工作负载。英伟达（NVIDIA）正与领先的宽 禁带芯片制造商合作，将 SiC 和 GaN 技术集成到其 800 V 高压直流（HVDC）电源系统中，这为 GaN 在未来三 到四年内大规模应用于数据中心铺平了道路。GaN 在支持这些架构方面具有独特的优势，它能够实现更高效的电 源转换并腾出宝贵的电路板空间。对于 AI 服务器和网络设备而言，采用 GaN 正成为一种竞争的必需品。加上电 信领域，预计该市场将在 2024 年到 2030 年间以 53% 的显著复合年增长率增长。 来源 ...

Core Insights - The rapid growth of AI applications like ChatGPT and Claude is driving an exponential increase in power demand for global AI data centers, pushing them towards critical power limits [1] - The power consumption of AI data centers is shifting from traditional levels of 20-30 kW per rack to levels reaching 500 kW and even 1 MW [1][2] - NVIDIA has announced the formation of an 800V HVDC power supply alliance aimed at developing next-generation AI data centers capable of supporting 1 MW per rack by 2027 [4] Group 1: Power Demand and Infrastructure - AI workloads are causing data center power demands to surge, with traditional 54V power systems becoming inadequate for modern AI factories that require megawatt-level power [2] - The transition to 800V HVDC systems is seen as essential to reduce energy losses and improve overall efficiency in data centers [1][3] - The current reliance on 54V systems is leading to physical limitations in space and efficiency, necessitating a shift to higher voltage systems [2][3] Group 2: Technological Developments - The 800V HVDC architecture is expected to enhance end-to-end energy efficiency by up to 5% and significantly reduce maintenance costs by up to 70% [5] - NVIDIA's collaboration with partners across the energy ecosystem aims to overcome previous barriers to the widespread adoption of HVDC technology in data centers [4] - Domestic companies like InnoSilicon and Changdian Technology are also advancing their technologies to align with the 800V HVDC trend, indicating a competitive landscape [6][7] Group 3: Semiconductor Innovations - The global supply of Gallium Nitride (GaN) is becoming increasingly strained, with companies like InnoSilicon positioned to leverage this scarcity in the context of NVIDIA's supply chain [9] - GaN devices offer superior performance in high-voltage applications compared to traditional silicon-based semiconductors, making them ideal for the evolving demands of AI data centers [11][12] - The integration of GaN technology is expected to significantly enhance power density and efficiency in the new 800V HVDC systems [12]

Core Viewpoint - The article highlights the rising prominence of Gallium Nitride (GaN) technology in various sectors, particularly in data centers and automotive applications, while Silicon Carbide (SiC) faces challenges. The power GaN market is projected to grow significantly, with a forecasted compound annual growth rate (CAGR) of 41% from 2023 to 2029, reaching over $2 billion [1]. Group 1: GaN Market Dynamics - NVIDIA is leading the transition to 800 V HVDC data center power infrastructure, which will significantly utilize GaN technology [1]. - Yole Group predicts that the power GaN market will grow tenfold from 2023 to 2029, driven by its higher switching frequency and power density, as well as reduced energy loss [1]. Group 2: TSMC's Shift in GaN Production - TSMC announced it will cease GaN foundry production by July 2027, citing low profit margins and a shift in focus towards advanced logic processes [6]. - This decision has forced existing customers to seek new partnerships, indicating a significant shift in the GaN foundry landscape [6]. Group 3: GaN Production Challenges and Opportunities - InnoScience, a leading domestic GaN manufacturer, emphasizes the importance of 8-inch wafer production for cost-effectiveness and scalability, arguing that 6-inch production is not viable for large-scale applications [7]. - The transition to 12-inch GaN production is seen as feasible but requires significant preparation and experience from 8-inch production [10][12]. Group 4: GaN Applications Beyond Consumer Electronics - GaN technology is not limited to consumer electronics; it has potential applications in electric vehicles (EVs) and data centers, with partnerships like that with CATL showcasing its capabilities [15][17]. - The article discusses the potential for GaN in smart and electric vehicles, highlighting its role in energy management and as part of distributed energy systems [16]. Group 5: Strategic Collaborations - InnoScience's collaboration with STMicroelectronics aims to enhance GaN power solutions across various sectors, leveraging each company's strengths to improve supply chain resilience [18]. - The partnership is expected to expand GaN product offerings and market capabilities, indicating a strategic move to solidify positions in the growing GaN market [18].

插播： 5月15日，"电动交通&数字能源SiC技术应用及供应链升级大会"活动将在上海举办， 三菱电机、意法半导体、Wolfspeed、三安半导体、天科合达、元山电子、大族半导体、香港 大学、长飞先进、宏微科技、利普思、昕感科技、国扬电子、国基南方、芯长征、合盛新材料、 国瓷功能材料等将出席本次会议，点击文章底部"阅读原文"即可报名参会。 前段时间，"行家说三代半"推送了第一篇《特斯拉技术专家访谈》 （ 链接 ） ，今天继续访谈后半段部分的 报道 ，分享 特斯拉专家他是如何看待 纳微、 英飞凌和 TI等氮化镓供应商，如何看待不同的氮化镓技术路线 。以下是他的核心观点节选： ● 我们并不关心氮化镓供应商是不是 Fabless， 最关心的是 他们 能否 英诺赛科、 ● 无论氮化镓企业如何做、做什么，对于汽车应用来说，大批量生产才是关键。如果他们没有统一 的封装标准，无法满足系统集成商所需的双供和多供要求。 解决质量和工艺问题。 ● 氮化镓供应商要具备良好的设计响应能力，尤其是在早期迭代 关键阶段。 ● GaN 的新锐公司之间不是关注内部竞争，更多的是考虑如何大力推广 ● 车规市场只有两家氮化镓供应商是不够的，三家是 ...