Make: Projects

Wireless Power Transfer

Send power without wires.

Wireless Power Transfer

Steps

Step #1:

Next
Wireless Power Transfer
  • The first thing is to make the big coil. You can do this by putting four nails into a board and wrapping the copper wire around them.

Step #2:

Next
Wireless Power Transfer
  • Then you have to make the smaller coil. It has to be about half the size of the bigger one. You need to put an LED/bulb and a capacitor on the output. I put 2 because I didn't have one that had the right value. You could also put a bridge rectifier on it to turn the AC into DC.

Step #3:

Next
Wireless Power Transfer
  • Connect the power to the big coil and put the small one in the middle and the LED should light up.

Step #4:

Wireless Power Transfer
  • I tested different gauge wire and the maximum efficiently I got was 42.2%.

In the Maker Shed

4 Responses to Wireless Power Transfer

  1. joshuadp117 on said:

    no

  2. Perry Bakalos on said:

    yes, it would definitely matter if either coil was touching (shorting out turns) itself…this is basically an air core transformer, and the inductance is a function of the # of turns of wire, among other variables…

  3. Nick StandardAI on said:

    do you have any idea what the herts was bro? I think i got a special recipe for one.

  4. Ethan nelson on said:

    What would be sufficient power? 9v? Or more?

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