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WO2012085119A3 - A wireless power receiver for inductive coupling, and a method for operating a wireless power receiver - Google Patents

A wireless power receiver for inductive coupling, and a method for operating a wireless power receiver Download PDF

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Publication number
WO2012085119A3
WO2012085119A3 PCT/EP2011/073643 EP2011073643W WO2012085119A3 WO 2012085119 A3 WO2012085119 A3 WO 2012085119A3 EP 2011073643 W EP2011073643 W EP 2011073643W WO 2012085119 A3 WO2012085119 A3 WO 2012085119A3
Authority
WO
WIPO (PCT)
Prior art keywords
wireless power
power receiver
resonator
inductive coupling
power signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/073643
Other languages
French (fr)
Other versions
WO2012085119A2 (en
Inventor
Harri Elo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2012085119A2 publication Critical patent/WO2012085119A2/en
Publication of WO2012085119A3 publication Critical patent/WO2012085119A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/2176—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Eletrric Generators (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A wireless power receiver (6) for receiving a power signal over an inductive coupling (300) from a power transmitting circuit (100) comprising a voltage generator (101) and for passing it to a load (800), the wireless power receiver (6) comprises: - a resonator (601, 602, 603) for receiving a power signal over the inductive coupling (300), the resonator (601, 602, 603) being suitable for converting a changing magnetic flux at its input port to an AC voltage at its output port; - energy storage means (601, 602) comprising at least one inductive component (601) and at least one capacitive component (602) for storing energy comprised in the power signal received by the resonator (601, 602, 603); and - a rectifying and regulating circuitry (610) for rectifying and regulating the received power signal before passing it to a load (800). The improvement is characterized in that the rectifying and regulating circuitry (610) comprises a buck regulator (611, 612, 613, 614, 615, 616) that is configured to carry out impedance matching between the load (800) and the resonator (601, 602, 603). The patent application comprises also an independent patent claim for an improvement in the method for operating a wireless power receiver.
PCT/EP2011/073643 2010-12-21 2011-12-21 A wireless power receiver for receiving a power signal over an inductive coupling, and an improvement in the method for operating a wireless power receiver Ceased WO2012085119A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20100427 2010-12-21
FI20100427A FI20100427L (en) 2010-12-21 2010-12-21 Method and apparatus for simultaneous rectification, regulation and power factor correction

Publications (2)

Publication Number Publication Date
WO2012085119A2 WO2012085119A2 (en) 2012-06-28
WO2012085119A3 true WO2012085119A3 (en) 2012-10-11

Family

ID=43414954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/073643 Ceased WO2012085119A2 (en) 2010-12-21 2011-12-21 A wireless power receiver for receiving a power signal over an inductive coupling, and an improvement in the method for operating a wireless power receiver

Country Status (2)

Country Link
FI (1) FI20100427L (en)
WO (1) WO2012085119A2 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6258816B2 (en) 2013-10-29 2018-01-10 パナソニック株式会社 Wireless power transmission apparatus and wireless power transmission system
EP3111531A1 (en) 2014-02-23 2017-01-04 Apple Inc. Adjusting filter in a coupled coil system
EP3111530B1 (en) * 2014-02-23 2022-04-13 Apple Inc. Impedance matching for inductive power transfer systems
EP3151377B1 (en) * 2014-05-20 2019-07-31 Fujitsu Limited Wireless power transmission control method and wireless power transmission system
JP6315088B2 (en) 2014-05-22 2018-04-25 富士通株式会社 Power receiver, wireless power transmission system, and kQ value calculation method
US10032557B1 (en) 2014-05-29 2018-07-24 Apple Inc. Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer
US9537353B1 (en) 2014-06-03 2017-01-03 Apple Inc. Methods for detecting mated coils
US9685814B1 (en) 2014-06-13 2017-06-20 Apple Inc. Detection of coil coupling in an inductive charging system
GB2527312B (en) 2014-06-17 2021-03-03 Advanced Risc Mach Ltd Harvesting power from ambient energy in an electronic device
US9813041B1 (en) 2014-07-31 2017-11-07 Apple Inc. Automatic boost control for resonant coupled coils
US10014733B2 (en) 2014-08-28 2018-07-03 Apple Inc. Temperature management in a wireless energy transfer system
US10193372B2 (en) 2014-09-02 2019-01-29 Apple Inc. Operating an inductive energy transfer system
GB2534114A (en) * 2014-09-30 2016-07-20 Drayson Tech (Europe) Ltd Inductive power transfer system
US10666084B2 (en) 2015-07-10 2020-05-26 Apple Inc. Detection and notification of an unpowered releasable charging device
US10211676B2 (en) 2015-08-25 2019-02-19 Otis Elevator Company Electromechanical propulsion system having a wireless power transfer system
NO341373B1 (en) * 2016-09-12 2017-10-23 Kongsberg Seatex As Method for control of a parallel resonant current-driven inductive coupler and parallel resonant current-driven inductive coupler
US10644531B1 (en) 2016-09-22 2020-05-05 Apple Inc. Adaptable power rectifier for wireless charger system
SG10201708314TA (en) 2016-10-28 2018-05-30 Gen Electric System and method for actively controlling output voltage of a wireless power transfer system
US10523063B2 (en) 2017-04-07 2019-12-31 Apple Inc. Common mode noise compensation in wireless power systems
US10389274B2 (en) 2017-04-07 2019-08-20 Apple Inc. Boosted output inverter for electronic devices
EP3528365B1 (en) * 2018-02-19 2020-07-22 Naptilus Technology Lab, S.L. Turner and rectifier apparatus for wireless power transfer receiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100164295A1 (en) * 2008-12-26 2010-07-01 Katsuei Ichikawa Wireless power transfer system and a load apparatus in the same wireless power transfer system
WO2010115867A1 (en) * 2009-04-09 2010-10-14 Siemens Aktiengesellschaft Transmission of power bidirectionally and without contact to charge electric vehicles
US20100277003A1 (en) * 2009-03-20 2010-11-04 Qualcomm Incorporated Adaptive impedance tuning in wireless power transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100164295A1 (en) * 2008-12-26 2010-07-01 Katsuei Ichikawa Wireless power transfer system and a load apparatus in the same wireless power transfer system
US20100277003A1 (en) * 2009-03-20 2010-11-04 Qualcomm Incorporated Adaptive impedance tuning in wireless power transmission
WO2010115867A1 (en) * 2009-04-09 2010-10-14 Siemens Aktiengesellschaft Transmission of power bidirectionally and without contact to charge electric vehicles

Also Published As

Publication number Publication date
FI20100427A7 (en) 2012-06-23
FI20100427L (en) 2012-06-23
WO2012085119A2 (en) 2012-06-28
FI20100427A0 (en) 2010-12-21

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