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:
Apr. 04, 2017
Filed:
Jun. 09, 2016
Sultan Qaboos University, Muscat, OM;
Mohammed M. Bait-Suwailam, Muscat, OM;
Mohammed Nasser Al Kindi, Muscat, OM;
Ammar Khamis Al Mahrami, Muscat, OM;
Jaafar Abdullah Al Dawood, Muscat, OM;
Abdulaziz Mohammed Al Balushi, Muscat, OM;
SULTAN QABOOS UNIVERSITY, Muscat, OM;
Abstract
The multi-element portable wireless charging device includes a transmitter having a DC power source (battery), an oscillator connected to the battery for converting the DC to AC, a power amplifier connected to the AC output of the oscillator, and at least one flat, planar primary coil connected as a load of the power amplifier circuit. The system also includes a receiver (typically installed in the device requiring recharging) that has a flat, planar secondary coil in which an AC current is induced when placed in close proximity (1-3 cm) to the primary coil, a full-wave bridge rectifier to rectify the AC current to DC, and a voltage regulator connected to the rectifier to provide a steady DC voltage required by the charging circuit to charge the mobile device. Power is transmitted from the transmitter to the receiver by magnetic inductive coupling.