DUAL-MODE WIRELESS POWER TRANSFER APPARATUS

摘要

A dual-mode receiver is provided that includes an electromagnetic resonator having one or more inductive elements that are arranged to form a receiver coil and a network of passive components arranged to form a matching network. The electromagnetic resonator includes a first selective frequency defined in a low frequency range and a second selective frequency defined in a high frequency range allowing for a rectification circuit to operate in both the high frequency range and low frequency range making maximum use of active circuits.

主权项

1. A wireless power transfer apparatus, comprising:
a plurality of wireless power transfer coils including a first wireless power transfer coil to transfer power wirelessly at a first frequency and a second wireless power transfer coil to transfer power wirelessly at a second frequency; and a passive network coupled to the first and second wireless power transfer coils, the passive network and first wireless power transfer coil having a first resonance at the first frequency, the passive network and second wireless power transfer coil having a second resonance at the second frequency.