STDA027 March   2026 LM2776

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1The Evolution of Power Supply Units in Data Center Servers
  5. 2The Requirements of PSUs in Data Center Servers
    1. 2.1 Higher Efficiency Demands
    2. 2.2 Fast Transient Response Driven by GPUs
    3. 2.3 Intelligence and Security
  6. 3PSU Variations in 800V DC Architecture
  7. 4Key Technologies Shaping the Next Generation of PSUs
    1. 4.1 Gallium Nitride (GaN) Reduces Switching Energy Losses and Increases Efficiency
    2. 4.2 Bidirectional GaN Cost Down Vienna PFC Solution
    3. 4.3 Hybrid Hysteretic-Controlled LLC Helps Quicken Transient Response
    4. 4.4 High-Voltage ORing Control Supports 800V Hot Swapping
  8. 5Conclusion
  9. 6References

2 The Requirements of PSUs in Data Center Servers

The PSU, as the foundational building block of the power conversion system, must fit the necessary power architecture transitions and meet all demands of the whole system. The core requirements of a PSU are efficiency, stability, and security.