CPC H02J 50/12 (2016.02) [G04C 10/00 (2013.01); G04G 19/00 (2013.01); G06F 3/038 (2013.01); G06F 3/03545 (2013.01); H02J 50/402 (2020.01); H02J 50/70 (2016.02); H02J 50/90 (2016.02)] | 16 Claims |
1. An apparatus comprising:
an enclosure;
a first ferrite core disposed inside the enclosure;
a wireless power receiver that comprises a first receiving coil wrapped around the first ferrite core between the first ferrite core and the enclosure;
a rechargeable battery; and
an alignment mark configured to be aligned with a center of a transmitting coil of a wireless power transmitter,
wherein the alignment mark is not aligned with a center of the first receiving coil,
wherein the first ferrite core is hollow,
wherein the rechargeable battery is located inside the first ferrite core.
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