Power with no strings attached

Power with no strings attached

Make 839
Windell writes in –

Here’s an article in EDN magazine titled “Power with no strings attached” discusses practical small-scale wireless power transmission. There are two really cool things in this article. First, a cutaway through the base of rechargeable electric toothbrush, showing the inductive coupler design. (How these things work has been discussed recently in the Make forums.) Secondly-wow- they built and show a wall clock that is *powered by* absorbing 2.45 GHz radiation. That’s the frequency used for 802.11b/g (and sometimes n).

Power with no strings attached – Link.

Discuss this article with the rest of the community on our Discord server!

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone


Maker Faire Bay Area 2023 - Mare Island, CA

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).