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:
May. 07, 2019
Filed:
Feb. 28, 2014
Applicant:
L'oreal, Paris, FR;
Inventor:
David Allen Gunderson, Everett, WA (US);
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H02J 7/0021 (2013.01); H02J 7/0077 (2013.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02);
Abstract
A battery charger and methods for magnetically transferring power from a power source to a battery is disclosed. A driver circuit outputs a modulated signal having a duty cycle from the power source to a sender-side circuit and across a space to a receiver-side tuned circuit. A sender-side sensor is configured to sense a parameter of the sender-side tuned circuit. The controller modifies the first duty cycle of the modulated signal based on the sensed parameter. A receiver-side circuit capable of determining charge status of the receiver side is also disclosed.