US 12,015,450 B2
Wireless power systems with interference mitigation
Sujeet Milind Patole, Cupertino, CA (US); Cheung-Wei Lam, Mountain View, CA (US); and Vaneet Pathak, Los Altos Hills, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 26, 2023, as Appl. No. 18/341,518.
Application 18/341,518 is a continuation of application No. 17/858,228, filed on Jul. 6, 2022, granted, now 11,799,565.
Claims priority of provisional application 63/233,528, filed on Aug. 16, 2021.
Prior Publication US 2023/0336253 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/80 (2016.01); H02J 50/10 (2016.01); H04B 15/02 (2006.01)
CPC H04B 15/02 (2013.01) [H02J 50/10 (2016.02); H02J 50/80 (2016.02)] 23 Claims
OG exemplary drawing
 
1. A wireless power transmitting device configured to provide wireless power to a wireless power receiving device, comprising:
wireless power transmitting circuitry having an inverter and a wireless power transmitting coil, wherein the inverter is configured to receive a clock signal and supply corresponding alternating-current drive signals to the wireless power transmitting coil; and
control circuitry configured to frequency dither the clock signal provided to the inverter, wherein frequency dithering the clock signal comprises:
determining a modulating waveform based at least partly on operating characteristics indicating a type of the wireless power receiving device; and
modulating the clock signal using the modulating waveform.