The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Apr. 17, 2024
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Adam L. Schwartz, Redwood City, CA (US);
Alireza Safaee, San Jose, CA (US);
Stephen C. Terry, San Jose, CA (US);
Zhiyuan Hu, Santa Clara, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 50/70 (2016.01); H01F 27/36 (2006.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02J 50/12 (2016.01); H02J 50/60 (2016.01); H02M 1/40 (2007.01);
U.S. Cl.
CPC ...
H02J 50/70 (2016.02); H01F 27/36 (2013.01); H01F 38/14 (2013.01); H02J 7/02 (2013.01); H02J 50/12 (2016.02); H02J 50/60 (2016.02); H02M 1/40 (2013.01);
Abstract
A wireless charging system having a power transmitter may wirelessly transfer power to a power receiver. Shield saturation, such as saturation of a ferrite structure, in the wireless power receiver may occur under some operating conditions. Saturation can lead to disruptive oscillations in power transfer. The power transmitting may include control circuitry for detecting and mitigating saturation.