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Title: Wireless power transfer magnetic couplers

Abstract

A magnetic coupler is disclosed for wireless power transfer systems. A ferrimagnetic component is capable of guiding a magnetic field. A wire coil is wrapped around at least a portion of the ferrimagnetic component. A screen is capable of blocking leakage magnetic fields. The screen may be positioned to cover at least one side of the ferrimagnetic component and the coil. A distance across the screen may be at least six times an air gap distance between the ferrimagnetic component and a receiving magnetic coupler.

Inventors:
; ;
Issue Date:
Research Org.:
Utah State University, North Logan, UT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1236001
Patent Number(s):
9240270
Application Number:
13/648,201
Assignee:
Utah State University
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
DOE Contract Number:  
EE0003114
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Oct 09
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 24 POWER TRANSMISSION AND DISTRIBUTION; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Wu, Hunter, Gilchrist, Aaron, and Sealy, Kylee. Wireless power transfer magnetic couplers. United States: N. p., 2016. Web.
Wu, Hunter, Gilchrist, Aaron, & Sealy, Kylee. Wireless power transfer magnetic couplers. United States.
Wu, Hunter, Gilchrist, Aaron, and Sealy, Kylee. Tue . "Wireless power transfer magnetic couplers". United States. https://www.osti.gov/servlets/purl/1236001.
@article{osti_1236001,
title = {Wireless power transfer magnetic couplers},
author = {Wu, Hunter and Gilchrist, Aaron and Sealy, Kylee},
abstractNote = {A magnetic coupler is disclosed for wireless power transfer systems. A ferrimagnetic component is capable of guiding a magnetic field. A wire coil is wrapped around at least a portion of the ferrimagnetic component. A screen is capable of blocking leakage magnetic fields. The screen may be positioned to cover at least one side of the ferrimagnetic component and the coil. A distance across the screen may be at least six times an air gap distance between the ferrimagnetic component and a receiving magnetic coupler.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 19 00:00:00 EST 2016},
month = {Tue Jan 19 00:00:00 EST 2016}
}

Works referenced in this record:

A d.c. magnetic metamaterial
journal, February 2008


Geometric approach for coupling enhancement of magnetically coupled coils
journal, July 1996


Stability and control of inductively coupled power transfer systems
journal, January 2000


A 1kW inductive charging system using AC processing pickups
conference, June 2011


A Three-Phase Inductive Power Transfer System for Roadway-Powered Vehicles
journal, December 2007


Analysis and Design of an LCL-T Resonant Converter as a Constant-Current Power Supply
journal, December 2005


Design of Symmetric Voltage Cancellation Control for LCL converters in Inductive Power Transfer Systems
conference, May 2011


Ferrite core couplers for inductive chargers
conference, January 2002

  • Nakao, F.; Matsuo, Y.; Kitaoka, M.
  • Power Conversion Conference - Osaka PCC 2002, Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579)
  • https://doi.org/10.1109/PCC.2002.997631

A review on inductive charging for electric vehicles
conference, May 2011


LCL pick-up circulating current controller for inductive power transfer systems
conference, September 2010


A new IPT magnetic coupler for electric vehicle charging systems
conference, November 2010

  • Budhia, Mickel; Covic, Grant; Boys, John
  • IECON 2010 - 36th Annual Conference of IEEE Industrial Electronics, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society
  • https://doi.org/10.1109/IECON.2010.5675350

Development and evaluation of single sided flux couplers for contactless electric vehicle charging
conference, September 2011


Small-size light-weight transformer with new core structure for contactless electric vehicle power transfer system
conference, September 2011


Characterization of novel Inductive Power Transfer Systems for On-Line Electric Vehicles
conference, March 2011

  • Huh, Jin; Lee, Wooyoung; Cho, Gyu-Hyeong
  • 2011 IEEE Applied Power Electronics Conference and Exposition - APEC 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
  • https://doi.org/10.1109/APEC.2011.5744867

Compact contactless power transfer system for electric vehicles
conference, June 2010

  • Nagatsuka, Y.; Ehara, N.; Kaneko, Y.
  • 2010 International Power Electronics Conference (IPEC - Sapporo), The 2010 International Power Electronics Conference - ECCE ASIA -
  • https://doi.org/10.1109/IPEC.2010.5543313

Self tuning pick-ups for inductive power transfer
conference, June 2008


Wireless Power Supply for Implantable Biomedical Device Based on Primary Input Voltage Regulation
conference, May 2007


An energy transmission system for an artificial heart using leakage inductance compensation of transcutaneous transformer
journal, November 1998


Lifetime prediction of IGBT modules for traction applications
conference, January 2000


Analysis and Design of an LCL-T Resonant Converter as a Constant-Current Power Supply
journal, December 2005


A new IPT magnetic coupler for electric vehicle charging systems
conference, November 2010

  • Budhia, Mickel; Covic, Grant; Boys, John
  • IECON 2010 - 36th Annual Conference of IEEE Industrial Electronics, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society
  • https://doi.org/10.1109/IECON.2010.5675350

A Unity-Power-Factor IPT Pickup for High-Power Applications
journal, February 2010


Single-phase unity power-factor inductive power transfer system
conference, June 2008


Modeling and controller design of ICPT pick-ups
conference, January 2002


Analyses of DC Inductance Used in ICPT Power Pick-Ups for Maximum Power Transfer
conference, January 2005


Controlling inrush currents in inductively coupled power systems
conference, January 2005


A High-Performance Single-Phase Bridgeless Interleaved PFC Converter for Plug-in Hybrid Electric Vehicle Battery Chargers
journal, July 2011


Multiphase Pickups for Large Lateral Tolerance Contactless Power-Transfer Systems
journal, May 2010


Design Considerations for a Contactless Electric Vehicle Battery Charger
journal, October 2005


Electric-field-coupled resonators for negative permittivity metamaterials
journal, January 2006


Predictive digital current controllers for switching power converters
patent, December 2006


Self-tuning digital current estimator for low-power switching converters
patent, December 2011


Inductive Power Supply With Duty Cycle Control
patent-application, July 2009


Multi Power Sourced Electric Vehicle
patent-application, May 2010