If you're designing a new power delivery method from scratch, I wonder if 12V is the right voltage.
It seems you could take a page out of the laptop handbook and go to USB-C 20V standard. There must already be a whole ecosystem of 20V capable PMICs / SMPS already, so this doesn't seem like it would be a drastic change.
Heck, it seems like we should just jump to the USB C power delivery standard for desktop PCs. The high end is currently 48V / 240W (which I'm guessing is a limitation of the connector + max safe voltage).
Either go with a different design for the connector to get above 240W, or just parallel up 2-4x USB C connectors internally. That would be more than sufficient.
I'm sure you'd be taking advantage of some of the production scale of laptops.
And this would allow easy extension to stuff like power external monitors etc from the desktop PC directly. Being able to charge a laptop and have an external display (or two) all connected to the desktop PC instead of their own dedicated power bricks would be awesome.
It seems you could take a page out of the laptop handbook and go to USB-C 20V standard. There must already be a whole ecosystem of 20V capable PMICs / SMPS already, so this doesn't seem like it would be a drastic change.
Heck, it seems like we should just jump to the USB C power delivery standard for desktop PCs. The high end is currently 48V / 240W (which I'm guessing is a limitation of the connector + max safe voltage). Either go with a different design for the connector to get above 240W, or just parallel up 2-4x USB C connectors internally. That would be more than sufficient.
I'm sure you'd be taking advantage of some of the production scale of laptops.
And this would allow easy extension to stuff like power external monitors etc from the desktop PC directly. Being able to charge a laptop and have an external display (or two) all connected to the desktop PC instead of their own dedicated power bricks would be awesome.