3 ms·
Some napkin math - they claim a device could get (at least) a 1.5W delivered. They vary from 360W/m2 to 3kW/m2 (by the article). We could fit 83 galaxy notes 2
by venomsnake 11y ago
Some napkin math - they claim a device could get (at least) a 1.5W delivered.
They vary from 360W/m2 to 3kW/m2 (by the article). We could fit 83 galaxy notes 2 in one square meter (it is 0.012 m2).
360/83 = 4.3 watts that reach said device. 30% efficiency seems fine.
The problem is that the extra energy must heat something. And it will become worse with increasing of the power transmitted.
- tomkinstinch 11y agoHeat is only a problem if you need to cool your space. Here in the Northeast it could be considered a happy side-effect for nine months of the year.
- venomsnake 11y agoWhat about cooling my device? Dissipating a couple more watts while working will really be pushing the thermal envelope.
- Aloha 11y agoPacific northwest too.