Title:
METHOD AND SYSTEM FOR MAXIMUM ACHIEVABLE EFFICIENCY IN NEAR-FIELD COUPLED WIRELESS POWER TRANSFER SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2014/111817
Kind Code:
A3
Abstract:
Methods and systems for maximum efficiency achievable in near-field coupled wireless power transfer systems are disclosed and may include configuring coil geometry, independently of load impedance and source impedance, for a transmit (Tx) coil and a receive (Rx) coil based on a media expected to be between the coils during operation. A desired susceptance and conductance may be determined and an impedance of an amplifier for the Tx coil may be configured based on the determined susceptance and conductance. A load impedance for the Rx coil may be configured based on the determined susceptance and conductance. A matching network may be coupled to the amplifier. The Rx coil may be integrated on a complementary metal-oxide semiconductor (CMOS) chip. One or more matching networks may be integrated on the CMOS chip for the configuring of the load impedance for the Rx coil.
Inventors:
GULAK GLENN (CA)
ZARGHAM MEYSAM (CA)
ZARGHAM MEYSAM (CA)
Application Number:
PCT/IB2014/000676
Publication Date:
December 04, 2014
Filing Date:
January 06, 2014
Export Citation:
Assignee:
GULAK GLENN (CA)
International Classes:
H01F5/00; H02J17/00; H03H7/40; H05K1/16
Foreign References:
| US20090243394A1 | 2009-10-01 | |||
| US8338991B2 | 2012-12-25 | |||
| US20110053500A1 | 2011-03-03 |
Attorney, Agent or Firm:
YAN, Wing, T. (50 O'Connor Suite 150, Ottawa ON K1P 6L2, CA)
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