Changjiang Securities·2026-03-16 05:53Investment Rating - The report indicates a strong growth potential in the AI server onboard power supply market, projecting it to exceed 100 billion by 2028 [4][39]. Core Insights - The onboard power supply is a critical component in the AIDC power architecture, responsible for supplying power to core loads such as AI chips. The market is expected to expand significantly due to increasing chip and server power consumption [4][7]. - Major players in the market include Vicor, MPS, Delta, Renesas, Infineon, ADI, and TI, all of which are enhancing their product offerings to capture market share [4][8]. - The transition towards modular power supplies, vertical power delivery (VPD), and high-voltage direct current (HVDC) systems is shaping the future of onboard power supply technology [21][32]. Market Overview - The global AI server onboard power supply market is projected to reach approximately 100 billion RMB (around 15.5 billion USD) by 2028, driven by the expansion of the AI market and increasing demand for server power [39][41]. - The report estimates that the value of onboard power supply for a single rack, such as the GB200 NVL72, is around 30,000 USD, highlighting the significant market potential [41][42]. Competitive Landscape - The competitive landscape is dynamic, with companies like Vicor leading the introduction of 48V component ecosystems, while MPS and Infineon are rapidly increasing their market presence through innovative power solutions [8][66][73]. - Vicor has faced challenges in maintaining market share due to capacity limitations and a closed technology system, while MPS has successfully integrated high-performance power solutions into the supply chain [48][66]. - Infineon is leveraging its expertise in power semiconductors to expand its server power offerings, with significant revenue growth expected in the coming years [73][80]. Technological Trends - The report highlights a clear trend towards modular power supplies, which offer improved efficiency and reduced footprint compared to traditional discrete power solutions [21][26]. - The shift to VPD is anticipated to replace traditional lateral power delivery (LPD) methods, significantly reducing power distribution network losses [28][32]. - The transition to HVDC systems is expected to enhance the efficiency of power delivery in data centers, with major companies like NVIDIA leading the charge towards higher voltage architectures [32][80].