Powering AI processors – 48V vertical power delivery changes the game
AI models demand huge current, driving legacy multiphase designs past 50 phases—causing space, thermal, and control limits Vicor addresses
ExaScaler and PEZY Computing unveil the first super computer
The ExaScaler/PEZY ZettaScaler-1.8 Super Computer pushes the limits in computing performance with a performance density of 1.5 PetaFLOPS/m. Powered by Vicor modules, the ZettaScaler leverages HV distribution and 48V Direct to CPU architecture. Vicor is proud to be part of such a high performance super computer and work with such an innovative company as ExaScaler/PEZY.
The Vicor power modules enable high efficiency and high density from 380V to the CPU in just a few highly integrated power modules. Vicor BCM modules convert 380V to 48V at each of its 24 Brick CPU clusters. Within each PEZY Brick CPU cluster, 48V is distributed to 32 PEZY-SCnp48 Module Cards. Each PEZY Module card uses a PRM and two VTMs for 48V Direct to CPU power.
Resources
Resources for the design engineer
Innovative 48V AI power architecture delivers both high current density and high current gain
Vicor 48V Factorized Power Architecture slashes thermal losses and delivers high current density to meet the extreme power demands of AI processors
48V Factorized Power Architecture™ slashes thermal losses and outperforms multiphase approach when powering AI
AI hardware faces severe power and cooling limits. Engineers debate 48V vs. 6V intermediate buses alongside new vertical power delivery (VPD) structures
Powering AI at scale
Maury Wood appears on Electronic Specifier podcast explaining the challenges of powering AI and unveiling the trends toward wafer-scale processors