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You know what's interesting to me? Almost everything runs on DC these days. Lights are solid state, just about all electronics have a power supply that converts
by PatentTroll 10y ago
You know what's interesting to me? Almost everything runs on DC these days. Lights are solid state, just about all electronics have a power supply that converts to DC, even a lot of (admittedly high end) home gadgets use brushless DC motors. The only AC devices I can count in a normal home are the big appliances like electric stoves, HVAC fans, etc. I wonder why there has not been more progress in a DC home distribution standard. Especially because efficiency generally increases with load, all of those little wall warts are less efficient than one big AC to DC converter.
- JoeAltmaier 10y agoDC propagates very poorly. Not sure that matters in the few meters of a house though. But its the reason the house service is AC to begin with.
- walrus01 10y agobecause there's no single DC voltage that all devices use, so you'd end up with homes wired with 48VDC and many power brick/wall-wart dc-dc converters to obtain 24VDC, 19VDC, 17.5VDC, 12VDC, 5VDC, etc. and the cable gauge would need to be incredibly thick to avoid significant losses, DC does not go very far distances well at all. Be ready to pay for #2 gauge copper in your walls instead of 14ga.