High voltage direct current power system for data centers

摘要

Several embodiments include a server rack that accesses high voltage direct current (HVDC) power from a power source external to the server rack. The server rack can provide the HVDC power to two or more shelves in the server rack via at least a HVDC power rail pair. One or more DC-DC converters in a shelf of server rack can convert the HVDC power to a lower DC voltage usable by information technology (IT) load in the shelf. A power distribution board (e.g., in the shelf or in the server rack) can then provide the lower DC voltage to the IT load. The DC-DC converters can be blindly mated with the power distribution board and can be hot swappable from the power distribution board.