3 ms·
> In 2011, the Wireless Power Consortium began to extend the Qi specification to medium power. The low-power specification delivers up to 5 W (typically used t
by snaky 8y ago
> In 2011, the Wireless Power Consortium began to extend the Qi specification to medium power. The low-power specification delivers up to 5 W (typically used to charge mobile devices), and the medium-power specification will deliver up to 120 W (typically used to power displays and laptops). In 2015, WPC demonstrated a high-power specification that will deliver up to 1 kW, allowing the powering of kitchen utensils among other high-power utilities.
https://en.wikipedia.org/wiki/Qi_%28standard%29 https://en.wikipedia.org/wiki/Qi_%28standard%29
And wireless chargers for cars are on the way.
- stormbrew 8y agoQi doesn't use rf or microwave to transmit power. Inductive coupling is not at all the same as what was studied afaik.