US 12,218,515 B2
Wireless power system with voltage regulation
Alireza Safaee, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Nov. 7, 2023, as Appl. No. 18/503,389.
Application 18/503,389 is a continuation of application No. 17/313,589, filed on May 6, 2021, granted, now 11,876,383.
Claims priority of provisional application 63/123,931, filed on Dec. 10, 2020.
Prior Publication US 2024/0072573 A1, Feb. 29, 2024
Int. Cl. H02J 50/10 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/10 (2016.02) [H02J 50/80 (2016.02)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a wireless charging coil;
a rectifier coupled to the wireless charging coil and configured to output a rectifier output voltage; and
a voltage regulator configured to receive the rectifier output voltage and to temporarily short the wireless charging coil to a power supply line in response to the rectifier transitioning between a first phase during which a voltage across two nodes in the rectifier is positive and a second phase during which the voltage across the two nodes in the rectifier is negative.