INDUCTIVE WIRELESS POWER TRANSFER SYSTEMS

摘要

A wireless power transfer system includes a coil assembly including a pair of spaced apart inductive coils positioned on a same side of a ferrite pad, and a switching network. The switching network, in response to an indication of a corresponding inductive coil assembly configuration, selectively operates the coils in a two-pole mode or a three-pole mode.

主权项

1. A wireless power transfer method comprising:
in response to an indication that a secondary coil assembly has a two-pole configuration, controlling current flow in each of a pair of primary coils that are spaced apart and positioned on a same side of a ferrite pad such that directions of the current flow in the primary coils are opposite; and in response to an indication that the secondary coil assembly has a three-pole configuration, controlling current flow in each of the primary coils such that directions of the current flow in the primary coils are the same.