Patent · US Active

Systems and methods for decoupling multiple wireless charging transmitters

US9275791B2 · kind B2 · utility

3Cited by

2References

40Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Charles E. Wheatley, III · Del Mar, US
Zhen Ning Low · Village of La Jolla, US
Meng Li · Shanghai, CN

Key dates

Filing date	Mar 15, 2013
Grant date	Mar 1, 2016
Priority date	—
Expiry date	May 10, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02J50/80
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This disclosure provides systems, methods and apparatus for decoupling multiple wireless charging transmitters. In one aspect, a device is configured to transmit wireless power to a first receiver. The device includes a first driver coil and a second driver coil. The device further includes a common reactance element connected to the first driver coil and the second driver coil. The reactance element is configured to at least partially cancel mutual inductance between the first driver coil and the second driver coil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.