Movatterモバイル変換

[0]ホーム
URL:

IN2014CN02821A - - Google Patents

Download PDF

Info

Publication number
IN2014CN02821A
IN2014CN02821AIN2821CHN2014AIN2014CN02821AIN 2014CN02821 AIN2014CN02821 AIN 2014CN02821AIN 2821CHN2014 AIN2821CHN2014 AIN 2821CHN2014AIN 2014CN02821 AIN2014CN02821 AIN 2014CN02821A
Authority
IN
India
Prior art keywords
wireless power
power transmitter
comprises determining
load
voltage
Prior art date
Application number
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 US13/646,553external-prioritypatent/US9071284B2/en
Application filed by Qualcomm IncfiledCriticalQualcomm Inc
Publication of IN2014CN02821ApublicationCriticalpatent/IN2014CN02821A/en

Links

Classifications

Landscapes

Abstract

This disclosure provides systems methods and apparatus for detecting an impedance of a wireless power transmitter load. In one aspect a method of determining a reactive condition of a wireless power transmitter apparatus is provided. The method comprises determining a value correlated to a voltage of drain of a switching element (604) of a driver circuit (624) of the wireless power transmitter (600). The method further comprises determining a reactance load (618) change based on the determined voltage.
IN2821CHN20142011-10-212012-10-17IN2014CN02821A (en)

Applications Claiming Priority (3)

Application NumberPriority DateFiling DateTitle
US201161550251P2011-10-212011-10-21
US13/646,553US9071284B2 (en)2011-10-212012-10-05Load impedance detection for static or dynamic adjustment of passive loads
PCT/US2012/060590WO2013059300A2 (en)2011-10-212012-10-17Load impedance detection for static or dynamic adjustment of passive loads

Publications (1)

Publication NumberPublication Date
IN2014CN02821Atrue IN2014CN02821A (en)2015-07-03

Family

ID=48141612

Family Applications (1)

Application NumberTitlePriority DateFiling Date
IN2821CHN2014IN2014CN02821A (en)2011-10-212012-10-17

Country Status (6)

CountryLink
EP (1)EP2769454B1 (en)
JP (2)JP6005170B2 (en)
KR (1)KR101612654B1 (en)
CN (1)CN103959602B (en)
IN (1)IN2014CN02821A (en)
WO (1)WO2013059300A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
KR102187962B1 (en)*2013-05-102020-12-08삼성전자주식회사Differential load detection method for detecting a wireless power receiver in wireless power network and wireless power transmitter
US20160308393A1 (en)*2013-11-112016-10-20Powerbyproxi LimitedContactless power receiver and method for operating same
US10164472B2 (en)2013-12-032018-12-25Massachusetts Institute Of TechnologyMethod and apparatus for wirelessly charging portable electronic devices
CN106033400B (en)*2015-03-182019-04-05瑞昱半导体股份有限公司Universal serial bus cable species detection device and method
US10498160B2 (en)2015-08-032019-12-03Massachusetts Institute Of TechnologyEfficiency maximization for device-to-device wireless charging
US10291074B2 (en)2015-09-092019-05-14Samsung Electronics Co., Ltd.Method and apparatus for transmitting wireless power
TWI621319B (en)*2015-09-192018-04-11立錡科技股份有限公司Resonant wireless power transmit circuit and control method thereof
CN106130195B (en)*2016-08-022019-03-15无锡晶磊电子有限公司Wireless charging circuit with flatwise coil
WO2018064791A1 (en)*2016-10-032018-04-12Intel CorporationReactance shift detection and over dissipation protection in a wireless power transmitter
KR101945601B1 (en)*2016-12-152019-02-07경희대학교 산학협력단Method and apparatus for dynamic impedance matching in magnetic resonance type wireless power transfer system
US10651687B2 (en)2018-02-082020-05-12Massachusetts Institute Of TechnologyDetuning for a resonant wireless power transfer system including cryptography
US11018526B2 (en)2018-02-082021-05-25Massachusetts Institute Of TechnologyDetuning for a resonant wireless power transfer system including cooperative power sharing
CN111819791B (en)*2018-03-082024-12-06株式会社村田制作所 Multiplexer, high frequency front end circuit and communication device
JP7126887B2 (en)*2018-07-112022-08-29東芝テック株式会社 Power transmission device and power transmission system
CN108923552A (en)*2018-07-272018-11-30浙江泰米电子科技有限公司A kind of wireless charging foreign bodies detection circuit and method
CN112874389B (en)*2021-02-012022-07-12重庆中车长客轨道车辆有限公司Operation protection method, device, equipment and computer readable storage medium
CN113466648B (en)*2021-06-282024-08-27深圳市时代速信科技有限公司Detector, detection method and device for GaN device energy wave

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
EP1634366B1 (en)*2003-05-232017-05-03Auckland Uniservices LimitedFrequency controlled resonant converter
JP2008028791A (en)*2006-07-242008-02-07Matsushita Electric Ind Co Ltd Class E amplifier, reader / writer and document management system using the same
JP4649430B2 (en)*2007-03-202011-03-09セイコーエプソン株式会社 Non-contact power transmission device
JP4600453B2 (en)*2007-09-262010-12-15セイコーエプソン株式会社 Power transmission control device, power transmission device, power reception device, non-contact power transmission system, electronic device, secondary coil position detection method, and primary coil positioning method
CN102099958B (en)2008-05-142013-12-25麻省理工学院 Wireless power transfer including interference enhancement
US8532724B2 (en)*2008-09-172013-09-10Qualcomm IncorporatedTransmitters for wireless power transmission
US20100277121A1 (en)2008-09-272010-11-04Hall Katherine LWireless energy transfer between a source and a vehicle
US9601261B2 (en)2008-09-272017-03-21Witricity CorporationWireless energy transfer using repeater resonators
JP5174628B2 (en)*2008-11-202013-04-03オリンパス株式会社 Power supply
US8338991B2 (en)*2009-03-202012-12-25Qualcomm IncorporatedAdaptive impedance tuning in wireless power transmission
JP2010246248A (en)2009-04-052010-10-28Kimitake UtsunomiyaRadio power supply device in apparatus
EP2293438B1 (en)*2009-09-072012-06-20Nxp B.V.A switching amplifier
US8228027B2 (en)*2009-10-132012-07-24Multi-Fineline Electronix, Inc.Wireless power transmitter with multilayer printed circuit
US8772975B2 (en)*2009-12-072014-07-08Qualcomm IncorporatedApparatus and method for implementing a differential drive amplifier and a coil arrangement
JP2011155733A (en)*2010-01-262011-08-11Equos Research Co LtdNoncontact power transmission system and noncontact power transmission device
KR101697364B1 (en)*2010-02-172017-01-17삼성전자주식회사Apparatus for transmitting/receving wireless power having resonance frequency stabilization circuit
JP5093386B2 (en)*2010-08-252012-12-12株式会社村田製作所 Power transmission device and power transmission system
JP5670869B2 (en)*2010-12-222015-02-18パナソニックＩｐマネジメント株式会社 Wireless power transmission system

Also Published As

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

Similar Documents

PublicationPublication DateTitle
IN2014CN02821A (en)
WO2011059288A3 (en)Method and apparatus for switching modes
WO2013165261A3 (en)Identifying an inductive power transfer receiver
AU2016204111A1 (en)Sensor fusion
MX2014003271A (en)Fault location using traveling waves.
MX342019B (en)Control circuit of a surgical device with a switch and a method for determining the state of the switch.
WO2012171818A8 (en)Device for detecting a defect in insulation
WO2012128498A3 (en)Method and apparatus for controlling brightness in a portable terminal
AU2014253684A8 (en)Reactive hybrid location determination method and apparatus
EP4290735A3 (en)Battery charging method and electronic device
WO2010136927A3 (en)Method and device for detecting a device in a wireless power transmission system
WO2013049010A3 (en)Accessory device
WO2012155922A3 (en)An electrosurgical pencil, a kit of parts comprising an electrosurgical pencil, and a method of providing an electrosurgical pencil
WO2011112022A3 (en)Wireless power charging method and apparatus for electronic device
WO2012170822A3 (en)System and method for detecting, characterizing, and tracking an inductive power receiver
EP2525511A4 (en)Measurement apparatus and method for the communication of an idle mode device having low mobility in a mobile communication system
GB201020619D0 (en)Pathogen sensor
MY166670A (en)Mobile terminal and method for controlling the same in consideration of communication environment
WO2013108155A3 (en)Power supply device
IN2012DE00270A (en)
WO2012014086A3 (en)Rectified sine wave detection for power factor correction circuit
TW200742969A (en)Method and apparatus for switching performance
TW201144818A (en)Method and apparatus for detecting CCM operation of a magnetic device
PH12017000287A1 (en)Method and indicating system for a vehicle
WO2013025293A3 (en)Apparatus and method for measuring active/reactive powers
[8]ページ先頭
©2009-2025 Movatter.jp