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:
Dec. 13, 2022
Filed:
May. 03, 2019
Applicant:
Integrated Device Technology, Inc., San Jose, CA (US);
Inventors:
Gustavo James Mehas, Mercer Island, CA (US);
Amit D. Bavisi, Los Gatos, CA (US);
Nicholaus Wayne Smith, La Mesa, CA (US);
Assignee:
Integrated Device Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 50/60 (2016.01); H02J 7/02 (2016.01); H02J 50/12 (2016.01); G01V 3/10 (2006.01);
U.S. Cl.
CPC ...
H02J 50/60 (2016.02); G01V 3/10 (2013.01); H02J 7/025 (2013.01); H02J 50/12 (2016.02);
Abstract
Embodiments described herein provide foreign object detection based on coil current sensing. The transmitter power loss is computed directly based on the coil current, in conjunction with, or in place of the conventional computation based on transmitter input current. The enhanced precision of the computer power loss can be used to more accurately detect a foreign object near the transmitter coil during a wireless power transfer.