US 12,463,464 B2
Magnetics configurations for wireless power transfer and communications in electronic device
Ye Li, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Feb. 28, 2022, as Appl. No. 17/652,840.
Claims priority of provisional application 63/167,795, filed on Mar. 30, 2021.
Prior Publication US 2022/0320904 A1, Oct. 6, 2022
Int. Cl. H02J 50/10 (2016.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H02J 7/00 (2006.01); H02J 50/90 (2016.01); H04B 5/26 (2024.01); H04B 5/79 (2024.01)
CPC H02J 50/10 (2016.02) [H01F 27/24 (2013.01); H01F 27/28 (2013.01); H02J 7/0044 (2013.01); H02J 50/90 (2016.02); H04B 5/26 (2024.01); H04B 5/79 (2024.01)] 11 Claims
OG exemplary drawing
 
1. A wireless earphone charging case comprising:
a power transmitting coil configured to be magnetically coupled to a power receiving coil of a wireless power receiver;
wireless power transmitting circuitry configured to transmit energy via the power transmitting coil;
a processing and communications system; and
a wireless communications coil coupled to the processing and communications system, the communications coil comprising a winding configured to be magnetically coupled to a corresponding communications coil of the wireless power receiver to allow communications between the processing and communications system and the wireless power receiver;
wherein the wireless communications coil is separated from the power transmitting coil along a longitudinal axis corresponding to a stem portion of a wireless earphone to be received in the wireless earphone charging case; and
wherein the power transmitting coil is located in a portion of the earphone charging case configured to receive a distal end of the stem portion of the wireless earphone.