DC-MHS：在 MHS 生态系统中实现 48V 架构和连接.pdf

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1、Hal LoketDC-MHS:Enabling 48V Architecture and Connectivity in the MHS Ecosystem.DC-MHS:Enabling 48V architecture and connectivity in the MHS ecosystem.Hal Loket,Technologist,TE ConnectivityCliff DuBay,Architect/Hardware Engineer,Intel,OCP DC-MHS Michael Menkhaus,Mechanical Engineer,TE ConnectivityCe

2、cily Zhou,Mechanical Engineer,TE ConnectivityNicholas Pease,Product Manager,TE ConnectivitySERVER:MODULAR HARDWARE SYSTEM(MHS)AgendaBackground48V PICPWR&48V Dedicated Supply Committee Requirements48V Connector&Cable Assy Design DetailsDesign Spec HighlightsBackgroundServer and rack power levels cont

3、inue to increase due to AI/ML needsChip level TDP and density rapidly increasingExisting 12V architecture reaching its limitationsCable AWG,bend radii,and power delivery capability challengesDC-MHS enabling 48V server architecture allows:Align to 48V ORv3 rack&additional power architectures Increase

4、d power delivery along with smaller wireBusbar to board(cabled)Board to board(cabled)No increase in sizeDC-MHS Committee Request48V architecture is compatible with existing 12V HPMs and peripherals48V interconnects fit within same volumetric footprint and mechanical locationsEnables 3.8x more power

5、transfer between HPM and peripheralsEnables connectivity from busbar to HPM/PDBCommittee Request Summary48V PICPWR:(cable to board)Right angle&straight versions w/same or smaller footprint as 12V PICPWR.Vertical and RA have same footprintHigh power:2x6 with 12 sideband,3.3kW 46VLow power:2x3 with 6

6、sideband,1.9kW 46VMating sequence:return-supply-sidebandSideband last-to-mate,first-to-break ensuring safetyKeying,latchingExcursion support:1s 5x current ratingDedicated 48V Supply:(IT gear connector to cable to board)Vertical header,2x6 with 2 sense,3.3kWSimilar power/size requirements to 48V PICP