IN2014CN02821A - - Google Patents

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Publication number
IN2014CN02821A
IN2014CN02821A IN2821CHN2014A IN2014CN02821A IN 2014CN02821 A IN2014CN02821 A IN 2014CN02821A IN 2821CHN2014 A IN2821CHN2014 A IN 2821CHN2014A IN 2014CN02821 A IN2014CN02821 A IN 2014CN02821A
Authority
IN
India
Prior art keywords
wireless power
power transmitter
comprises determining
load
voltage
Prior art date
Application number
Other languages
English (en)
Inventor
Cody B Wheeland
Ryan Tseng
Novak William H Von
Original Assignee
Qualcomm Inc
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
Priority claimed from US13/646,553 external-priority patent/US9071284B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014CN02821A publication Critical patent/IN2014CN02821A/en

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
    • 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
    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • 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
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • 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
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Filters And Equalizers (AREA)
  • Transmitters (AREA)
  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)
IN2821CHN2014 2011-10-21 2012-10-17 IN2014CN02821A (enExample)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161550251P 2011-10-21 2011-10-21
US13/646,553 US9071284B2 (en) 2011-10-21 2012-10-05 Load impedance detection for static or dynamic adjustment of passive loads
PCT/US2012/060590 WO2013059300A2 (en) 2011-10-21 2012-10-17 Load impedance detection for static or dynamic adjustment of passive loads

Publications (1)

Publication Number Publication Date
IN2014CN02821A true IN2014CN02821A (enExample) 2015-07-03

Family

ID=48141612

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2821CHN2014 IN2014CN02821A (enExample) 2011-10-21 2012-10-17

Country Status (6)

Country Link
EP (1) EP2769454B1 (enExample)
JP (2) JP6005170B2 (enExample)
KR (1) KR101612654B1 (enExample)
CN (1) CN103959602B (enExample)
IN (1) IN2014CN02821A (enExample)
WO (1) WO2013059300A2 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102187962B1 (ko) 2013-05-10 2020-12-08 삼성전자주식회사 무선 충전에서 수신기 검출을 위한 로드 변화 감지 방법 및 무선 전력 송신기
EP3072212A4 (en) * 2013-11-11 2017-04-26 PowerbyProxi Limited Contactless power receiver and method for operating same
US10164472B2 (en) 2013-12-03 2018-12-25 Massachusetts Institute Of Technology Method and apparatus for wirelessly charging portable electronic devices
CN106033400B (zh) * 2015-03-18 2019-04-05 瑞昱半导体股份有限公司 通用串行总线缆线种类检测装置及方法
US10498160B2 (en) 2015-08-03 2019-12-03 Massachusetts Institute Of Technology Efficiency maximization for device-to-device wireless charging
US10291074B2 (en) 2015-09-09 2019-05-14 Samsung Electronics Co., Ltd. Method and apparatus for transmitting wireless power
TWI621319B (zh) * 2015-09-19 2018-04-11 立錡科技股份有限公司 諧振式無線電源發送電路及其控制方法
CN106130195B (zh) * 2016-08-02 2019-03-15 无锡晶磊电子有限公司 带有扁平线圈的无线充电电路
WO2018064791A1 (en) * 2016-10-03 2018-04-12 Intel Corporation Reactance shift detection and over dissipation protection in a wireless power transmitter
KR101945601B1 (ko) * 2016-12-15 2019-02-07 경희대학교 산학협력단 자기 공진형 무선 전력 전송 시스템에서 동적 임피던스 정합 장치 및 방법
US11018526B2 (en) 2018-02-08 2021-05-25 Massachusetts Institute Of Technology Detuning for a resonant wireless power transfer system including cooperative power sharing
US10651687B2 (en) 2018-02-08 2020-05-12 Massachusetts Institute Of Technology Detuning for a resonant wireless power transfer system including cryptography
CN111819791B (zh) * 2018-03-08 2024-12-06 株式会社村田制作所 复用器、高频前端电路以及通信装置
JP7126887B2 (ja) * 2018-07-11 2022-08-29 東芝テック株式会社 送電装置及び電力伝送システム
CN108923552A (zh) * 2018-07-27 2018-11-30 浙江泰米电子科技有限公司 一种无线充电异物检测电路及方法
CN112874389B (zh) * 2021-02-01 2022-07-12 重庆中车长客轨道车辆有限公司 一种操作保护方法、装置、设备及计算机可读存储介质
CN113466648B (zh) * 2021-06-28 2024-08-27 深圳市时代速信科技有限公司 一种GaN器件能量波的检测器、检测方法及装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004241916A1 (en) * 2003-05-23 2004-12-02 Auckland Uniservices Limited Frequency controlled resonant converter
JP2008028791A (ja) * 2006-07-24 2008-02-07 Matsushita Electric Ind Co Ltd Ｅ級増幅器およびそれを用いたリーダライタならびに書類管理システム
JP4649430B2 (ja) * 2007-03-20 2011-03-09 セイコーエプソン株式会社 非接触電力伝送装置
JP4600453B2 (ja) * 2007-09-26 2010-12-15 セイコーエプソン株式会社 送電制御装置、送電装置、受電装置、無接点電力伝送システム、電子機器、２次コイル位置検出方法および１次コイルの位置決め方法
AU2009246310B9 (en) 2008-05-14 2015-04-02 Massachusetts Institute Of Technology Wireless energy transfer, including interference enhancement
US8532724B2 (en) * 2008-09-17 2013-09-10 Qualcomm Incorporated Transmitters for wireless power transmission
US9601261B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Wireless energy transfer using repeater resonators
US20100277121A1 (en) 2008-09-27 2010-11-04 Hall Katherine L Wireless energy transfer between a source and a vehicle
JP5174628B2 (ja) * 2008-11-20 2013-04-03 オリンパス株式会社 電力供給装置
US8338991B2 (en) * 2009-03-20 2012-12-25 Qualcomm Incorporated Adaptive impedance tuning in wireless power transmission
JP2010246248A (ja) 2009-04-05 2010-10-28 Kimitake Utsunomiya 機器内無線電力供給装置
EP2293438B1 (en) * 2009-09-07 2012-06-20 Nxp B.V. A switching amplifier
US8228027B2 (en) * 2009-10-13 2012-07-24 Multi-Fineline Electronix, Inc. Wireless power transmitter with multilayer printed circuit
US8772975B2 (en) * 2009-12-07 2014-07-08 Qualcomm Incorporated Apparatus and method for implementing a differential drive amplifier and a coil arrangement
JP2011155733A (ja) * 2010-01-26 2011-08-11 Equos Research Co Ltd 非接触送電システム、および非接触送電装置
KR101697364B1 (ko) * 2010-02-17 2017-01-17 삼성전자주식회사 공진 주파수 안정화 회로를 구비한 무선 전력 송수신 장치
JP5093386B2 (ja) * 2010-08-25 2012-12-12 株式会社村田製作所 送電装置および電力伝送システム
JP5670869B2 (ja) * 2010-12-22 2015-02-18 パナソニックＩｐマネジメント株式会社 無線電力伝送システム

Also Published As

Publication number Publication date
KR20140080549A (ko) 2014-06-30
CN103959602A (zh) 2014-07-30
KR101612654B1 (ko) 2016-04-14
JP2015503311A (ja) 2015-01-29
CN103959602B (zh) 2018-05-29
WO2013059300A2 (en) 2013-04-25
WO2013059300A3 (en) 2013-06-20
EP2769454B1 (en) 2016-01-06
JP2016197990A (ja) 2016-11-24
JP6005170B2 (ja) 2016-10-12
EP2769454A2 (en) 2014-08-27

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