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:
Sep. 05, 2023
Filed:
Jan. 30, 2020
Aira, Inc., Chandler, AZ (US);
William Paul Abajian, Napa, CA (US);
Jules Marie Xavier Laffitte, San Mateo, CA (US);
John MacDonald, San Francisco, CA (US);
Viswajit Natarajan, San Jose, CA (US);
Christopher William Sarli, San Francisco, CA (US);
Lixin Shi, Redwood City, CA (US);
Jake Lee Vander Ploeg, San Francisco, CA (US);
Xiaoping Zhu, Moraga, CA (US);
Mark Huan Mekkittikul, Hollister, CA (US);
AIRA, INC., Phoenix, AZ (US);
Abstract
A wireless charging system is configured to charge one or more receiver devices simultaneously. The wireless charging system includes multiple coils that may be driven independently based on a feedback system with one or more feedback channels. Each coil is driven by a coil driving signal selected based on a set of target characteristics. A coil drive circuit receives an input of a pulse width modulation (PWM) signal and outputs the coil driving signal to a corresponding coil.