RE: Wireless power Challenge: Excited, Honored, i can't wait!

vsluiter — Thu, 27 Mar 2014 12:51:09 GMT

Nice idea!

In the previous challenge I made something to charge 4-6 AA batteries, and had the added handicap of having to boost the output current. I'm curious how you will be doing, and whether you'll be able to accomplish your goals! The receiver coil is quite large compared to the AA batteries...

I saw your 'back of a napkin calculations', and wondered how you got to the numbers... If want to charge until 3.3V, and drain until 2.7 you can use 3.3-2.7/3.6 of capacity, and the rest of the energy is unusable... That's the bad part of capacitors, as you can only use part of the charge to power your circuit... Or you would have to use an energy harvesting converter to fully drain the capacitors!

RE: Wireless power Challenge: Excited, Honored, i can't wait!

sleuz — Mon, 17 Mar 2014 13:16:42 GMT

Hi Alex

This is great!

I would definitely get 2 of these with a bluetooth mouse and keyboard to get rid of all the cables on my desk. Implement a few charging pads into the desk and you´re good to go.

Good luck

Simon