US 12,113,375 B2
Wireless power mode switching
Zaid A. AbuKhalaf, Sunnyvale, CA (US); and Alexei E. Kosut, Campbell, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 8, 2023, as Appl. No. 18/464,107.
Application 18/464,107 is a continuation of application No. 17/100,317, filed on Nov. 20, 2020, granted, now 11,843,265.
Claims priority of provisional application 63/047,797, filed on Jul. 2, 2020.
Claims priority of provisional application 63/047,779, filed on Jul. 2, 2020.
Prior Publication US 2023/0421000 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/80 (2016.01); H02J 7/00 (2006.01); H02J 50/10 (2016.01); H02J 50/40 (2016.01)
CPC H02J 50/80 (2016.02) [H02J 7/0048 (2020.01); H02J 7/007182 (2020.01); H02J 50/10 (2016.02); H02J 50/40 (2016.02)] 20 Claims
OG exemplary drawing
 
1. Control circuitry for an electronic device having a wireless power coil, wherein the electronic device is operable in a wireless charging system with an additional electronic device and wherein the control circuitry is configured to:
detect a presence of the additional electronic device using the wireless power coil;
in accordance with detecting the presence of the additional electronic device, place the wireless power coil in a first mode in which the wireless power coil receives wireless power signals from the additional electronic device; and
in accordance with receiving an instruction representing a mode change:
transmit a mode change request packet to the additional electronic device, via the wireless power coil, using in-band communication; and
change the wireless power coil from the first mode to a second mode in which the wireless power coil transmits wireless power signals to an additional wireless power coil of the additional electronic device.