26-05-2012, 03:16 PM
A First Technical Look at Witricity
463_WiTricity.pdf (Size: 127.39 KB / Downloads: 41)
In this case, we will assume the secondary and primary coils are bound inside
the spheres. Thus, coils that MIT uses are modeled as spheres instead of coils.
From an electrostatic point of view, that is not far off from the actual situation but
it greatly simplifies the models. In effect, two spheres could be used instead of
the coils with sufficient electronics inside each to form the same drive voltage at
the surface of the driving sphere and transform the received drive current at the
receiving sphere. From an electrostatic wireless power transfer point of view,
the shape and electronics behind the transmitter and receiver does not matter.