Quote:
Originally Posted by Generalx5
I havnt looked into this one bit, but does any one know where the power loss comes from?
BRB!
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June,
There are a variety of places where the power is lost. Turning RF into an effective field is tough enough but then you add to that the power that is lost by not coupling all of that field to the receiving coil. The inefficient coupling between the coils due to a lack of focus of the field and the varying load on the receiving coil all add up as well. Certainly placing the coils closer together would help. The RF is used to make the coils small and light enough to be a practical demo. Lower frequencies would work but the coils become significantly larger for the same efficiency.