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:
Nov. 06, 2018
Filed:
Jun. 16, 2015
Wipqtus Inc., Cupertino, CA (US);
Ganapathy Sankar, Cupertino, CA (US);
WIPQTUS INC., Cupertino, CA (US);
Abstract
A wireless power transmitter (WPT) including a first, second, third circuit and a transmit coil for wirelessly delivering power to a wireless power receiver (WPR) including a receiver coil, rectifier, impedance network, protection circuitry, control logic, modulator/demodulator and ADC is provided. A method that enables WPT and WPR to deliver the required power to the WPR's downstream load in planar, orthogonal and intermediate modes of WPR placement on WPT is provided. The WPR is integrated into the strap/frame or in the vital area of the device. To avoid a heated metal object safety issue, the WPT implements a metal object detect algorithm to detect metal objects and terminate transmission of power. To protect their circuitry from induced voltage spikes in excess of acceptable levels, the WPR includes a simple protection circuitry that naturally turns on and siphons out the excess power when the acceptable threshold levels are exceeded.