General > General Technical Chat
FCC approves first wireless 'power-at-a-distance' charging system
sdpkom:
--- Quote from: saike on December 04, 2018, 06:30:46 pm ---Does the objection link above point to a portal to the last century?
--- End quote ---
I think it does
Cyberdragon:
EEEK! 90s user interface! :wtf: :scared:
jonovid:
update-
approval to
WattUp 900 MHz wireless charging technology has FCC approval
https://www.businesswire.com/news/home/20210913005135/en/Energous-To-Demonstrate-WattUp-Wireless-Charging-Over-The-Air-Technology-and-Partner-Products-at-CES-2022
The US Federal Communications Commission has given its approval to wireless charging technology from a San Jose, California company.
https://apnews.com/press-release/business-wire/technology-business-europe-federal-communications-commission-energous-corp-18383181a521437bb69e07f92e7a60cd
Energous Corporation sought approval for its 900 MHz, 1-watt active energy harvesting transmitter that enables wireless transfer of power.
The US regulatory agency's OK follows similar approval granted in Europe this past May.
The transmitter, known as WattUp, is able to charge several devices at the same time and is seen as key to the growth of devices reliant on the Internet of Things.
has wireless charging technology been debunked?
do we need a 900 MHz 1-watt transmitter in our homes?
EEVblog:
--- Quote from: jonovid on November 02, 2021, 05:46:54 am ---Energous Corporation sought approval for its 900 MHz, 1-watt active energy harvesting transmitter that enables wireless transfer of power.
--- End quote ---
A whole 1 WATT!
What a game changer! :-DD
jonpaul:
Hello, similar techniques are being scaled up for electric car charging.
Nikola Tesla in 1890s experimented with wireless power and achieved 1/2 W lamps lit 1 km from a 50 KW transmitter on a 55' tower.
In 1960s Satellite Solar Power Station (SSPS) would launch huge panels into sync orbit and beam down microwave pawer to acres of antennas and converters "RectEnnas"
https://en.wikipedia.org/wiki/Space-based_solar_power
Side benefit: Can be dual use as a space based weapon. Similar schemes are proposed more recently.
As a magnetics designer I can say any gap between primary and secondary of a split inductive coupling will have very low efficiency due to fringing of the field. DC><Microwave Converter conversion efficiency at 900 MHz will be 70-85%.
Just the ramblings of an old retired EE
Bon chance
Jon
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