Powercast’s technology cuts the electric cord
Thomas Menguy | April 1, 2007Found at cnn via engadget but it seems that the last cord has been cut by the folks over at powercast:
Powercast’s platform uses nothing more complex than a radio–and is cheap enough for just about any company to incorporate into a product. A transmitter plugs into the wall, and a dime-size receiver (the real innovation, costing about $5 to make) can be embedded into any low-voltage device. The receiver turns radio waves into DC electricity, recharging the device’s battery at a distance of up to 3 feet.
Powercast’s technology cuts the electric cord – April 1, 2007
Powercast has already “signed nondisclosure agreements to develop products with more than 100 companies (Philips, for instance), including major manufacturers of cellphones, MP3 players, automotive parts, temperature sensors, hearing aids, and medical implants.”
Powercast looking to bring wireless power to reality – Engadget
So yes this is it, I have just one concern, in our time of power saving and global warming, what would be the ratio of the received energy versus the dissipated one? Really I’m not sure if the yield of this technology is ecologically correct , and of course you will always forget to disconnect your RF chargers …. Anyway this is exciting!