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. 30, 2018
Filed:
Feb. 23, 2015
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
David W. Ritter, Cupertino, CA (US);
Jeffrey J. Terlizzi, Cupertino, CA (US);
Todd K. Moyer, Cupertino, CA (US);
Jeffrey M. Alves, Cupertino, CA (US);
Steven G. Herbst, Cupertino, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01); H02J 50/12 (2016.01); H02J 50/70 (2016.01); H01F 38/14 (2006.01); H02J 5/00 (2016.01); H02J 7/02 (2016.01); H02M 3/335 (2006.01); H02M 7/219 (2006.01); H02J 17/00 (2006.01);
U.S. Cl.
CPC ...
H03H 7/38 (2013.01); H01F 38/14 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 17/00 (2013.01); H02J 50/12 (2016.02); H02J 50/70 (2016.02); H02M 3/33523 (2013.01); H02M 7/219 (2013.01);
Abstract
Methods and apparatuses for improved efficiency of power transfer across an inductive charging interface by adaptively changing the impedance of the receive coil in response to changes in load conditions during inductive power transfer are disclosed.