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Title: Efficient near-field wireless energy transfer using adiabatic system variations

Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is .kappa..sub.1B, transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is .kappa..sub.B2, and during the wireless energy transfers, adjusting at least one of the coupling rates .kappa..sub.1B and .kappa..sub.B2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1159641
Assignee:
Massachusetts Institute of Technology (Cambridge, MA) CHO
Patent Number(s):
8,836,172
Application Number:
13/677,407
Contract Number:
FG02-99ER45778
Research Org:
Massachusetts Institute of Technology, Cambridge, MA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

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patent-application, April 2011

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journal, November 2004

A novel circuit for non-contact charging through electro-magnetic coupling
conference, January 1992
  • Sakamoto, H.; Harada, K.
  • PESC `92 Record. 23rd Annual IEEE Power Electronics Specialists Conference
  • DOI: 10.1109/PESC.1992.254708

An Inductively Coupled RF System for the Transmission of 1 kW of Power Through the Skin
journal, July 1971
  • Schuder, John C.; Gold, Jerry H.; Stephenson, Hugh E.
  • IEEE Transactions on Biomedical Engineering, Vol. BME-18, Issue 4, p. 265-273
  • DOI: 10.1109/TBME.1971.4502849

Energy transport into the closed chest from a set of very-large mutually orthogonal coils
journal, January 1963
  • Schuder, J. C.; Stephenson, H. E.
  • Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, Vol. 81, Issue 6, p. 527-534
  • DOI: 10.1109/TCE.1963.6591388

Powering an Artificial Heart: Birth of the Inductively Coupled-Radio Frequency System in 1960
journal, November 2002

Ultrahigh speed all-optical demultiplexing based on two-photon absorption in a laser diode
journal, January 1998
  • Thomsen, B. C.; Barry, L. P.; Dudley, J. M.
  • Electronics Letters, Vol. 34, Issue 19, p. 1871-1872
  • DOI: 10.1049/el:19981300

Wireless energy transfer for stand-alone systems: a comparison between low and high power applicability
journal, August 2001

High-efficiency coupling-insensitive transcutaneous power and data transmission via an inductive link
journal, July 1990
  • Zierhofer, C. M.; Hochmair, E. S.
  • IEEE Transactions on Biomedical Engineering, Vol. 37, Issue 7, p. 716-722
  • DOI: 10.1109/10.55682

Photonic-crystal slow-light enhancement of nonlinear phase sensitivity
journal, January 2002
  • Soljačić, Marin; Johnson, Steven G.; Fan, Shanhui
  • Journal of the Optical Society of America B, Vol. 19, Issue 9, p. 2052-2059
  • DOI: 10.1364/JOSAB.19.002052

Coupled-resonator optical waveguide: a proposal and analysis
journal, January 1999
  • Yariv, Amnon; Xu, Yong; Lee, Reginald K.
  • Optics Letters, Vol. 24, Issue 11, p. 711-713
  • DOI: 10.1364/OL.24.000711

Miniature transmitter for implantable micro systems
conference, January 2003
  • Ahmadian, M.; Flynn, B.W.; Murray, A.F.
  • Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
  • DOI: 10.1109/IEMBS.2003.1280778

Rate-equation analysis of output efficiency and modulation rate of photonic-crystal light-emitting diodes
journal, October 2000
  • Fan, S.; Villeneuve, P.R.; Joannopoulos, J.D.
  • IEEE Journal of Quantum Electronics, Vol. 36, Issue 10, p. 1123-1130
  • DOI: 10.1109/3.880652

A Comparative Study Between Novel Witricity and Traditional Inductive Magnetic Coupling in Wireless Charging
journal, May 2011
  • Ho, S. L.; Wang, Junhua; Fu, W. N.
  • IEEE Transactions on Magnetics, Vol. 47, Issue 5, p. 1522-1525
  • DOI: 10.1109/TMAG.2010.2091495

The Power to Set You Free
journal, July 2007

Optimal Transmission Frequency for Ultralow-Power Short-Range Radio Links
journal, July 2004
  • Yates, D.C.; Holmes, A.S.; Burdett, A.J.
  • IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 51, Issue 7, p. 1405-1413
  • DOI: 10.1109/TCSI.2004.830696

A low-power miniature transmitter using a low-loss silicon platform for biotelemetry
conference, January 1997
  • Ziaie, B.; Najafi, K.; Anderson, D.J.
  • 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering'
  • DOI: 10.1109/IEMBS.1997.758800

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