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points by Maxion 3 days ago | 0 comments

Mainly thinking 48V as that is already a standard in the marine and automotive world. AFAIK 120V DC is not a commonly used standard ? (Maybe in aviation?)

[–] atoav 3 days ago

Most modern aircraft have a 400V 360-800Hz three-phase grid, as this allows thinner (read:lighter) conductors. There are some high voltage DC rails on some plains in the range 270VDC or ±270VDC.

On the usage side for instrumentation, avionics etc. it is usually 28 VDC.

[–] cestith 2 days ago

48V DC is also common in the telecommunications world and available in the data center world.