Just go to a higher voltage already, if you go for DC. Most computers e.g. are fine with 300~350 V DC (and would not be fine with 120 V DC, as the high-voltage

Just go to a higher voltage already, if you go for DC. Most computers e.g. are fine with 300~350 V DC (and would not be fine with 120 V DC, as the high-voltage side of their power supplies isn't designed for the current you'd have at "just" 120 V).