CN102640396A - 负载阻抗决定装置、无线电力传输装置及无线电力传输方法 - Google Patents

负载阻抗决定装置、无线电力传输装置及无线电力传输方法 Download PDF

Info

Publication number
CN102640396A
CN102640396A CN2010800551042A CN201080055104A CN102640396A CN 102640396 A CN102640396 A CN 102640396A CN 2010800551042 A CN2010800551042 A CN 2010800551042A CN 201080055104 A CN201080055104 A CN 201080055104A CN 102640396 A CN102640396 A CN 102640396A
Authority
CN
China
Prior art keywords
load impedance
angle
measuring
unit
electric power
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.)
Granted
Application number
CN2010800551042A
Other languages
English (en)
Other versions
CN102640396B (zh
Inventor
朴垠锡
权相旭
洪荣泽
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN102640396A publication Critical patent/CN102640396A/zh
Application granted granted Critical
Publication of CN102640396B publication Critical patent/CN102640396B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/0025Means for supplying energy to the end effector
    • B25J19/0045Contactless power transmission, e.g. by magnetic induction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G1/00Details of arrangements for controlling amplification
    • H03G1/0005Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38Impedance-matching networks
    • H03H7/40Automatic matching of load impedance to source impedance
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Transmitters (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

提供一种负载阻抗决定装置、一种无线电力传输装置以及一种无线电力传输方法。可测量两个谐振器之间的距离和角度中的至少一个。可基于测量的距离和测量的角度中的至少一个来确定负载阻抗。当两个谐振器之间的距离改变时,可在不使用单独的匹配电路的情况下保持高的电力传送效率。在负载阻抗被确定的情况下,可传输测试电力。根据测试电力的电力传送效率,可控制负载阻抗,并且可从源谐振器向目标谐振器无线传输电力。

Description

负载阻抗决定装置、无线电力传输装置及无线电力传输方法
技术领域
以下描述涉及一种负载阻抗决定装置、一种无线电力传输装置以及一种无线电力传输方法,更具体地讲,涉及这样一种无线传输技术:即使源谐振器和目标谐振器之间的距离改变,也有效地管理从源谐振器到目标谐振器的无线电力传输。
背景技术
随着信息技术(IT)的发展,分布有越来越多的便携式电子装置。由于便携式电子产品的各种特性,相应的便携式电子产品的电池性能成为一个重要问题。各种便携式电子产品和家用电器具有无线传输数据的能力,然而,便携式电子产品通常使用有线连接(诸如将装置插入插座)来接收电力。
当前,对可以无线供电的无线电力传输技术进行研究。由于无线环境的特性,源谐振器和目标谐振器之间的距离可随时间变化,并且源谐振器和目标谐振器之间的匹配条件也可变化。因此,公开这样一种新的方案:即使在源谐振器和/或目标谐振器动态地改变位置的环境下,该方案也可提高无线传输的效率。
发明内容
在一个总的方面,提供一种负载阻抗决定装置,包括:测量单元,测量源谐振器和目标谐振器之间的距离和角度中的至少一个;以及决定单元,基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
决定单元可基于测量的距离和测量的角度二者来确定负载阻抗。
负载阻抗决定单元可包括在源谐振器中,并且测量的角度可对应于源谐振器相对于目标谐振器倾斜的角度。
在另一方面,提供一种无线电力传输装置,包括:负载阻抗决定单元;以及改变单元,改变所述无线电力传输装置的阻抗,以与由负载阻抗决定单元确定的负载阻抗共轭,其中,负载阻抗决定单元包括测量单元和决定单元,测量单元测量所述无线电力传输装置和目标谐振器之间的距离和角度中的至少一个,决定单元基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
所述无线电力传输装置还可包括:发送器,将与由负载阻抗决定单元确定的负载阻抗相关的信息发送到终端。
改变单元可基于可调电阻、电感器和电容器中的至少一个来改变所述无线电力传输装置的阻抗。
所述无线电力传输装置还可包括:测试单元,使用改变的阻抗传输测试电力;以及控制单元,当测试电力的电力传送效率小于参考值时,控制单元控制负载阻抗决定单元重新确定负载阻抗,当测试电力的电力传送效率大于或等于所述参考值时,控制单元控制所述无线电力传输装置使用改变的阻抗来无线传输电力。
决定单元可基于测量的距离和测量的角度二者来确定负载阻抗。
所述无线电力传输装置可包括源谐振器,并且测量的角度可对应于源谐振器相对于目标谐振器倾斜的角度。
在另一方面,提供一种无线接收电力的终端,包括:负载阻抗决定单元;以及改变单元,改变所述终端的阻抗以匹配由负载阻抗决定单元确定的负载阻抗,其中,负载阻抗决定单元包括测量单元和决定单元,测量单元测量所述终端和目标谐振器之间的距离和角度中的至少一个,决定单元基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
所述终端还可包括:发送器,将与由负载阻抗决定单元确定的负载阻抗相关的信息发送到无线电力传输装置。
改变单元可基于可调电阻、电感器和电容器中的至少一个来改变所述终端的阻抗。
所述终端还可包括:信号发送器,当改变单元改变所述终端的阻抗时,将测试电力请求信号发送到无线电力传输装置;以及控制单元,当测试电力的电力传送效率小于参考值时,控制单元控制负载阻抗决定单元重新确定负载阻抗,当测试电力的电力传送效率大于或等于所述参考值时,控制单元将信号发送到所述无线电力传输装置,以无线传输电力。
决定单元可基于测量的距离和测量的角度二者来确定负载阻抗。
所述终端可包括源谐振器,并且测量的角度可对应于源谐振器相对于目标谐振器倾斜的角度。
在另一方面,提供一种确定负载阻抗的方法,包括:测量源谐振器和目标谐振器之间的距离和角度中的至少一个;以及基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
可基于测量的距离和测量的角度二者来确定负载阻抗。
测量的角度可对应于源谐振器相对于目标谐振器倾斜的角度。
在另一方面,提供一种无线传输电力的方法,包括:确定负载阻抗;以及改变阻抗以与确定的负载阻抗共轭,其中,确定步骤包括:测量源谐振器和目标谐振器之间的距离和角度中的至少一个,以及基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
通过以下描述、附图和权利要求,其他特点和方面会是清楚的。
附图说明
图1是示出将电力无线传输到终端的无线电力传输装置的示例的示图。
图2是示出负载阻抗决定装置的示例的示图。
图3是示出负载阻抗、源谐振器和目标谐振器的Z矩阵的示例的示图。
图4是示出无线电力传输装置的示例的示图。
图5是示出无线接收电力的终端的示例的示图。
图6是示出用于确定负载阻抗的方法的示例的流程图。
图7是示出用于无线传输电力的方法的示例的流程图。
贯穿附图和说明书,除非另外描述,否则相同的附图标号应该被理解为指示相同的元件、特征和结构。为了清楚、说明和简要,这些元件的相对大小和描述可被夸大。
具体实施方式
提供以下描述以帮助读者全面理解这里描述的方法、设备和/或系统。因此,这里描述的方法、设备和/或系统的各种改变、修改和等同物可被推荐给本领域普通技术人员。此外,为了增加清楚和简要,可省略公知功能和结构的描述。
图1示出将电力无线传输到终端的无线电力传输装置的示例。
参照图1,无线电力传输装置110将电力无线传输到终端120。在该示例中,无线电力传输装置110包括源谐振器111,终端120包括目标谐振器121。作为示例,无线电力传输装置110可包括在便携式装置中。
图2示出负载阻抗决定装置的示例。
参照图2,负载阻抗决定装置200包括测量单元201和决定单元202。测量单元201可测量源谐振器210和目标谐振器220之间的距离d211和角度θ212中的至少一个。例如,测量单元201可包括使用光波和/或超声波的距离传感器(未示出)。测量单元201可使用距离传感器测量距离d211。测量的角度θ212可指示目标谐振器220相对于源谐振器210倾斜的角度。
决定单元202可基于测量的距离d211和角度θ212中的至少一个来确定负载阻抗。例如,决定单元202可基于测量的距离d 211来确定负载阻抗。决定单元可基于角度θ212来确定负载阻抗。作为另一示例,决定单元202可基于测量的距离d211和角度θ212二者来确定负载阻抗。决定单元202可确定负载阻抗,以使最大电力可从无线电力传输装置(未示出)传输到终端(未示出)。参照图3描述确定负载阻抗的方案。
图3示出负载阻抗ZL、源谐振器和目标谐振器的Z矩阵的示例。
参照图3,示出源谐振器311、目标谐振器312和负载阻抗ZL313的构造310。源谐振器311和目标谐振器312彼此分开距离d315和角度θ316。目标谐振器312连接到负载阻抗ZL313。
Zin314表示从供电的无线电力传输装置(未示出)来看的输入阻抗。
图3还示出关于构造310的Z矩阵320。Z11对应于源谐振器311的阻抗,Z12对应于源谐振器311和目标谐振器312之间的阻抗,Z22对应于目标谐振器312的阻抗。
这里描述用于确定负载阻抗以使最大电力可从无线电力传输装置传输到终端的方案。
可使用以下等式1来确定输入阻抗Zin 314:
Zk=Z22-Z12+ZL
Z n = Z 12 / / Z k → 1 Z n = 1 Z 12 + 1 Z k = 1 Z 12 + 1 Z 22 - Z 12 + Z L = Z 22 + Z L Z 12 ( Z 22 - Z 12 + Z L )
Z in = Z 11 - Z 12 + Z n = Z 11 - Z 12 2 Z 22 + Z L - - - ( 1 ) .
在该示例中,Zk对应于包括在虚线圈321中的阻抗的和,Zn对应于包括在虚线圈322中的阻抗的和。
由无线电力传输装置供应的输入电力Pin可由以下等式2来表示:
P in = 1 2 Re [ Z in ] · | I in | 2 - - - ( 2 ) .
在该示例中,Iin对应于在Z矩阵中从供电的无线电力传输装置流入的电流。
从无线电力传输装置供应的电力Pin中传送到负载的电力PL可由以下等式3来表示。
P L = 1 2 Re [ Z L ] · | I L | 2
= 1 2 Re [ Z L ] · | Z 12 I in Z k + Z 12 | 2 = 1 2 Re [ Z L ] · | Z 12 I in Z 22 + Z L | 2 - - - ( 3 ) .
基于等式2和等式3,电力传送效率PTE可由以下等式4来表示:
PTE = P L P in = Re [ Z L ] Re [ Z in ] · | Z 12 Z 22 + Z L | 2 - - - ( 4 ) .
可使用以下等式5来确定传输最大电力的负载阻抗ZL
∂ PTE ∂ Re [ Z L ] = 0 ∂ PTE ∂ Im [ Z L ] = 0 - - - ( 5 ) .
满足以上等式5的负载阻抗ZL可表示为最优负载阻抗ZL opt。可传输最大电力以及最优负载阻抗ZL opt的电力传送效率PTEmax可由以下等式6来表示:
Re [ Z L opt ] = Re [ Z 22 ] 1 - Re [ X 2 ] - 1 4 Im [ X 2 ] 2
Im [ Z L opt ] = 1 2 Re [ Z 22 ] · Im [ X 2 ] - Im [ Z 22 ]
PTE max = | X | 2 2 - Re [ X 2 ] + 4 ( 1 - Re [ X 2 ] ) - Im [ X 2 ] 2 - - - ( 6 ) .
在以上等式6中,X可对应于以下等式7:
X = Z 12 Re [ Z 22 ] = R a 1 rad | T | Re [ Z 22 ] Re [ Z 11 ] Re [ Z 22 ] = R a 1 rad | T | 1 Re [ Z 11 ] · Re [ Z 22 ] = R a 1 rad | T | Re [ Z 11 ] Re [ Z 11 ] Re [ Z 22 ]
Figure BDA00001727089400065
T = 3 2 { - sin 2 θ 1 jkd + ( 3 cos 2 θ - 1 ) [ 1 ( jkd ) 2 + 1 ( jkd ) 3 ] } e - jkd
在该示例中,d对应于源谐振器311和目标谐振器312之间的距离d315,θ对应于源谐振器311和目标谐振器312之间的角度θ316。
作为示例,负载阻抗决定单元的测量单元可测量源谐振器311和目标谐振器312之间的距离d315和角度θ316,决定单元可基于测量的距离d315和角度θ316中的至少一个来确定负载阻抗,以使最大电力可如以上等式6所示被传输。
图4示出无线电力传输装置的示例。
参照图4,无线电力传输装置400包括负载阻抗决定单元410和改变单元420。负载阻抗决定单元410包括测量单元411和决定单元412。测量单元411可测量源谐振器和目标谐振器之间的距离和角度中的至少一个。决定单元412可基于测量的距离和角度中的至少一个来确定负载阻抗。
参照图2和图3进行的关于负载阻抗决定装置的描述可适用于负载阻抗决定单元410。因此,这里省略关于负载阻抗决定单元410的进一步描述。
改变单元420可改变无线电力传输装置400的阻抗以与由负载阻抗决定单元410确定的负载阻抗共轭,例如,改变单元420可改变无线电力传输装置400的阻抗并将由负载阻抗决定单元410确定的负载阻抗与无线电力传输装置400的阻抗组合。例如,改变单元420可基于可调电阻、电感器、电容器以及它们的组合等来改变无线电力传输装置400的阻抗。
无线电力传输装置400可包括测试单元450和控制单元440。测试单元450可使用改变的阻抗传输测试电力。测试电力的量可以被预先确定,或者可从外部源输入。
例如,当测试电力的电力传送效率小于或等于参考值时,控制单元440可控制负载阻抗决定单元410重新确定负载阻抗。作为另一示例,当测试电力的电力传送效率大于或等于参考值时,控制单元440可控制无线电力传输装置400使用改变的阻抗来传输电力。例如,参考值可以被预先确定或者可以从外部源输入。作为另一示例,当测试电力的电力传送效率小于参考值时,控制单元440可暂停测试电力的传输。
例如,可通过测量响应于接收传输信号从目标谐振器反射的反射波的功率来确定电力传送效率。传输信号对应于从源谐振器向目标谐振器无线传输电力的信号。反射波对应于被反射并被返回的部分传输信号。
例如,当反射波的功率小于或等于参考值时,可指示大部分传输到目标谐振器的电力被目标谐振器接收。例如,当反射波小于参考值时,可对应于电力传送效率大于或等于参考值的情况。因此,控制单元440可控制无线电力传输装置400使用改变的阻抗来无线传输电力。
相反,当反射波的功率大于参考值时,可指示仅有少量传输到目标谐振器的电力被目标谐振器接收。例如,当反射波大于参考值时,可对应于电力传送效率小于参考值的情况。因此,控制单元440可控制负载阻抗决定单元410重新确定负载阻抗。例如,控制单元440可包括用于测量反射波的功率的功率检测器(未示出),并可使用功率检测器来测量反射波的功率。
例如,可通过测量反射波的幅值来确定电力传送效率。例如,当反射波的幅值小于或等于参考值时,可指示仅有少量电力被反射并且大部分电力被目标谐振器接收。因此,控制单元440可控制无线电力传输装置400使用改变的阻抗来无线传输电力。
相反,在反射波的幅值大于参考值的情况下,可指示大部分电力被反射并且仅有少量电力被目标谐振器接收。因此,控制单元440可控制负载阻抗决定单元410重新确定负载阻抗。
无线电力传输装置400可包括发送器430。发送器430可将与由负载阻抗决定单元410确定的负载阻抗相关的信息发送到终端(未示出)。因为发送器430将与确定的负载阻抗相关的信息发送到终端,所以终端可改变终端的阻抗来匹配确定的负载阻抗。
图5示出无线接收电力的终端的示例。
参照图5,终端500包括负载阻抗决定单元510和改变单元520。负载阻抗决定单元510包括测量单元511和决定单元512。
测量单元511可测量源谐振器(未示出)和目标谐振器(未示出)之间的距离和角度中的至少一个。决定单元512可基于测量的距离和角度中的至少一个来确定负载阻抗。
参照图2和图3进行的关于负载阻抗决定装置的描述可适用于负载阻抗决定单元510。因此,这里省略关于负载阻抗决定单元510的进一步描述。
改变单元520可改变终端500的阻抗,以匹配由负载阻抗决定单元510确定的负载阻抗。例如,改变单元520可基于可调电阻、电感器、电容器以及它们的组合等来改变终端500的阻抗。
终端500可包括信号发送器540和控制单元550。当改变单元520改变终端500的阻抗时,信号发送器540可将测试电力请求信号发送到无线电力传输装置(未示出)。测试电力的量可以被预先确定,或者可从外部源输入。
当测试电力的电力传送效率小于参考值时,控制单元550可控制负载阻抗决定单元510重新确定负载阻抗。当测试电力的电力传送效率大于或等于参考值时,控制单元550可将信号发送到无线电力传输装置,以无线传输电力。参考值可以被预先确定,或者可从外部源输入。当测试电力的电力传送效率小于参考值时,控制单元550可控制信号发送器540发送暂停传输测试电力的信号。
终端500可包括发送器530。发送器530可将与由负载阻抗决定单元510确定的负载阻抗相关的信息发送到无线电力传输装置。因为发送器530将与确定的负载阻抗相关的信息发送到无线电力传输装置,所以无线电力传输装置可改变无线电力传输装置的阻抗,以与确定的负载阻抗共轭。
图6示出用于确定负载阻抗的方法的示例。
在610中,测量源谐振器和目标谐振器之间的距离和角度中的至少一个。例如,可通过距离传感器基于光波和/或超声波来测量源谐振器和目标谐振器之间的距离。角度可指示目标谐振器基于源谐振器所位于的角度。
在620中,基于测量的距离和角度中的至少一个来确定负载阻抗。例如,可确定负载阻抗,以使最大电力可从无线电力传输装置被传输到终端。以上参照图3描述了用于确定负载阻抗的方案,因此这里省略进一步的描述。
图7示出用于无线传输电力的方法的示例。
在710中,确定负载阻抗。以上参照图2和图3描述了用于确定负载阻抗的方案,因此这里省略进一步的描述。
在720中,改变阻抗以与确定的负载阻抗共轭。例如,可基于可调电阻、电感器、电容器以及它们的组合等来改变阻抗。
虽然图7中没有示出,但是无线电力传输方法还可包括传输测试电力和控制电力传输。在该示例中,可使用改变的阻抗来传输测试电力。测试电力的量可以被预先确定,或者可从外部源输入。
当测试电力的电力传送效率小于参考值时,可控制负载阻抗被重新确定。当测试电力的电力传送效率大于或等于参考值时,可使用改变的阻抗控制电力被无线传输。参考值可以被预先确定,或者可从外部源输入。当测试电力的电力传送效率小于参考值时,可暂停测试电力的传输。
例如,可通过测量响应于传输信号反射的反射波的功率来确定电力传送效率。传输信号对应于从源谐振器向目标谐振器无线传输电力的信号。反射波对应于被反射并被返回的部分传输信号。
例如,当反射波的功率小于或等于参考值时,可指示仅有少量电力被反射,并且大部分传输到目标谐振器的电力被目标谐振器接收。例如,这可对应于电力传送效率大于或等于参考值的情况。因此,可控制电力以使用改变的阻抗被无线传输。
相反,当反射波的功率大于参考值时,可指示大部分电力被反射,并且仅有少量传输到目标谐振器的电力被目标谐振器接收。例如,这可对应于电力传送效率小于参考值的情况。因此,可控制阻抗负载被重新确定。例如,无线电力传输方法可使用构造为测量反射波的功率的功率检测器来测量反射波的功率。
因此,基于测量的反射波的功率,无线电力传输装置可确定调整传输到无线电力接收装置的电力的量。例如,无线电力传输装置可调整负载阻抗以传送更有效率的电力的量。
可通过测量传输信号的反射波的幅值来确定电力传送效率。例如,当反射波的幅值小于或等于参考值时,可指示仅有少量电力被反射,并可指示大部分传输到目标谐振器的电力被目标谐振器接收。因此,可控制电力以使用改变的阻抗被无线传输。
相反,当反射波的幅值大于参考值时,可指示大部分电力被反射并且仅有少量传输到目标谐振器的电力被目标谐振器实际接收。因此,可控制负载阻抗被重新确定。
虽然在图7中没有示出,但是无线电力传输方法还可包括将与确定的负载阻抗相关的信息发送到终端。这样,终端可改变终端的阻抗以匹配确定的负载阻抗。
上述处理、功能、方法和/或软件可被记录、存储或固定在一个或多个包括程序指令的计算机可读存储介质中,所述程序指令由计算机执行以使处理器运行或执行所述程序指令。所述介质还可单独包括程序指令、数据文件、数据结构等,或者包括它们的组合。计算机可读存储介质的示例包括磁介质(诸如硬盘、软盘和磁带)、光介质(诸如CD ROM盘和DVD)、磁光介质(诸如光盘)以及专门构造为存储和执行程序指令的硬件装置(诸如只读存储器(ROM)、随机存取存储器(RAM)、闪存等)。程序指令的示例包括诸如由编译器产生的机器码以及包含可由计算机使用解释器执行的高级代码的文件。所述硬件装置还可构造为用作一个或多个软件模块,以执行上述操作和方法,反之亦然。此外,计算机可读存储介质可分布在通过网络连接的计算机系统中,并且计算机可读代码和程序指令可以以分散方式被存储和运行。
仅作为非穷举说明,这里公开的终端装置是指移动装置(诸如移动电话、个人数字助理(PDA)、数码相机、便携式游戏机、MP3播放器、便携式/个人多媒体播放器(PMP)、手持电子书、便携式膝上型个人计算机(PC)、全球定位系统(GPS)导航)以及能够与这里公开的终端装置无线通信或网络通信的装置(诸如台式PC、高清晰度电视(HDTV)、光盘播放器、机顶盒等)。
计算系统或计算机可包括与总线、用户接口和存储器控制器电连接的微处理器。计算系统或计算机还可包括闪存装置。闪存装置可经由存储器控制器存储N比特数据。所述N比特数据被微处理器处理,或者将被微处理器处理,N可以是1或大于1的整数。在计算系统或计算机是移动设备的情况下,可另外的提供电池以供应计算系统或计算机的操作电压。
本领域普通技术人员应该清楚的是,计算系统或计算机还可包括应用芯片组、相机图像处理器(CIS)、移动动态随机存储器(DRAM)等。存储器控制器和闪存装置可构成使用非易失性存储器存储数据的固态驱动/盘(SSD)。
以上已经公开了多个示例。然而,应该理解的是,可进行各种修改。例如,如果以不同的顺序执行所述技术,和/或如果所述系统、架构、装置或电路中的组件以不同的方式组合和/或被其他组件或者其等同物替换或补充,则可实现适当的结果。因此,其他实施方式落入权利要求的范围内。

Claims (19)

1.一种负载阻抗决定装置,包括:
测量单元,测量源谐振器和目标谐振器之间的距离和角度中的至少一个;以及
决定单元,基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
2.如权利要求1所述的负载阻抗决定装置,其中,决定单元基于测量的距离和测量的角度二者来确定负载阻抗。
3.如权利要求1所述的负载阻抗决定装置,其中,负载阻抗决定单元包括在源谐振器中,并且测量的角度对应于源谐振器相对于目标谐振器倾斜的角度。
4.一种无线电力传输装置,包括:
负载阻抗决定单元;以及
改变单元,改变所述无线电力传输装置的阻抗,以与由负载阻抗决定单元确定的负载阻抗共轭,
其中,负载阻抗决定单元包括测量单元和决定单元,测量单元测量所述无线电力传输装置和目标谐振器之间的距离和角度中的至少一个,决定单元基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
5.如权利要求4所述的无线电力传输装置,还包括:发送器,将与由负载阻抗决定单元确定的负载阻抗相关的信息发送到终端。
6.如权利要求4所述的无线电力传输装置,其中,改变单元基于可调电阻、电感器和电容器中的至少一个来改变所述无线电力传输装置的阻抗。
7.如权利要求4所述的无线电力传输装置,还包括:
测试单元,使用改变的阻抗传输测试电力;以及
控制单元,当测试电力的电力传送效率小于参考值时,控制单元控制负载阻抗决定单元重新确定负载阻抗,当测试电力的电力传送效率大于或等于所述参考值时,控制单元控制所述无线电力传输装置使用改变的阻抗来无线传输电力。
8.如权利要求4所述的无线电力传输装置,其中,决定单元基于测量的距离和测量的角度二者来确定负载阻抗。
9.如权利要求4所述的无线电力传输装置,其中,所述无线电力传输装置包括源谐振器,并且测量的角度对应于源谐振器相对于目标谐振器倾斜的角度。
10.一种无线接收电力的终端,包括:
负载阻抗决定单元;以及
改变单元,改变所述终端的阻抗以匹配由负载阻抗决定单元确定的负载阻抗,
其中,负载阻抗决定单元包括测量单元和决定单元,测量单元测量所述终端和目标谐振器之间的距离和角度中的至少一个,决定单元基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
11.如权利要求10所述的终端,还包括:发送器,将与由负载阻抗决定单元确定的负载阻抗相关的信息发送到无线电力传输装置。
12.如权利要求10所述的终端,其中,改变单元基于可调电阻、电感器和电容器中的至少一个来改变所述终端的阻抗。
13.如权利要求10所述的终端,还包括:
信号发送器,当改变单元改变所述终端的阻抗时,将测试电力请求信号发送到无线电力传输装置;以及
控制单元,当测试电力的电力传送效率小于参考值时,控制单元控制负载阻抗决定单元重新确定负载阻抗,当测试电力的电力传送效率大于或等于所述参考值时,控制单元将信号发送到所述无线电力传输装置,以无线传输电力。
14.如权利要求10所述的终端,其中,决定单元基于测量的距离和测量的角度二者来确定负载阻抗。
15.如权利要求10所述的终端,其中,所述终端包括源谐振器,并且测量的角度对应于源谐振器相对于目标谐振器倾斜的角度。
16.一种确定负载阻抗的方法,包括:
测量源谐振器和目标谐振器之间的距离和角度中的至少一个;以及
基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
17.如权利要求16所述的方法,其中,基于测量的距离和测量的角度二者来确定负载阻抗。
18.如权利要求16所述的方法,其中,测量的角度对应于源谐振器相对于目标谐振器倾斜的角度。
19.一种无线传输电力的方法,包括:
确定负载阻抗;以及
改变阻抗以与确定的负载阻抗共轭,
其中,确定步骤包括:测量源谐振器和目标谐振器之间的距离和角度中的至少一个,以及基于测量的距离和测量的角度中的至少一个来确定负载阻抗。
CN201080055104.2A 2009-11-09 2010-11-09 负载阻抗决定装置、无线电力传输装置及无线电力传输方法 Expired - Fee Related CN102640396B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020090107508A KR101706616B1 (ko) 2009-11-09 2009-11-09 로드 임피던스 결정 장치, 무선 전력 전송 장치 및 그 방법
KR10-2009-0107508 2009-11-09
PCT/KR2010/007860 WO2011056039A2 (en) 2009-11-09 2010-11-09 Load impedance decision device, wireless power transmission device, and wireless power transmission method

Publications (2)

Publication Number Publication Date
CN102640396A true CN102640396A (zh) 2012-08-15
CN102640396B CN102640396B (zh) 2015-12-16

Family

ID=43970586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080055104.2A Expired - Fee Related CN102640396B (zh) 2009-11-09 2010-11-09 负载阻抗决定装置、无线电力传输装置及无线电力传输方法

Country Status (6)

Country Link
US (2) US8334620B2 (zh)
EP (1) EP2499717B1 (zh)
JP (1) JP5681995B2 (zh)
KR (1) KR101706616B1 (zh)
CN (1) CN102640396B (zh)
WO (1) WO2011056039A2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769812A (zh) * 2012-09-07 2015-07-08 三星电子株式会社 用于在磁谐振无线电力发送系统中的无线电力发送器的通信和电力控制的方法
CN108429325A (zh) * 2013-03-22 2018-08-21 三星电子株式会社 无线电力发送器及其控制方法

Families Citing this family (219)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8115448B2 (en) 2007-06-01 2012-02-14 Michael Sasha John Systems and methods for wireless power
US9421388B2 (en) 2007-06-01 2016-08-23 Witricity Corporation Power generation for implantable devices
JP4661900B2 (ja) * 2008-04-17 2011-03-30 ソニー株式会社 無線通信装置、電力供給方法、プログラム、及び無線通信システム
US9601270B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Low AC resistance conductor designs
US8946938B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Safety systems for wireless energy transfer in vehicle applications
US9246336B2 (en) 2008-09-27 2016-01-26 Witricity Corporation Resonator optimizations for wireless energy transfer
US9577436B2 (en) 2008-09-27 2017-02-21 Witricity Corporation Wireless energy transfer for implantable devices
US9601266B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Multiple connected resonators with a single electronic circuit
US8497601B2 (en) 2008-09-27 2013-07-30 Witricity Corporation Wireless energy transfer converters
US9396867B2 (en) 2008-09-27 2016-07-19 Witricity Corporation Integrated resonator-shield structures
US9093853B2 (en) 2008-09-27 2015-07-28 Witricity Corporation Flexible resonator attachment
US8947186B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Wireless energy transfer resonator thermal management
US9160203B2 (en) 2008-09-27 2015-10-13 Witricity Corporation Wireless powered television
US9515494B2 (en) 2008-09-27 2016-12-06 Witricity Corporation Wireless power system including impedance matching network
US8912687B2 (en) 2008-09-27 2014-12-16 Witricity Corporation Secure wireless energy transfer for vehicle applications
US9065423B2 (en) 2008-09-27 2015-06-23 Witricity Corporation Wireless energy distribution system
US9106203B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Secure wireless energy transfer in medical applications
US8907531B2 (en) 2008-09-27 2014-12-09 Witricity Corporation Wireless energy transfer with variable size resonators for medical applications
US8937408B2 (en) 2008-09-27 2015-01-20 Witricity Corporation Wireless energy transfer for medical applications
US8922066B2 (en) 2008-09-27 2014-12-30 Witricity Corporation Wireless energy transfer with multi resonator arrays for vehicle applications
US9184595B2 (en) 2008-09-27 2015-11-10 Witricity Corporation Wireless energy transfer in lossy environments
US9035499B2 (en) 2008-09-27 2015-05-19 Witricity Corporation Wireless energy transfer for photovoltaic panels
US8901778B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with variable size resonators for implanted medical devices
US8928276B2 (en) 2008-09-27 2015-01-06 Witricity Corporation Integrated repeaters for cell phone applications
US9601261B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Wireless energy transfer using repeater resonators
US9105959B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Resonator enclosure
US9544683B2 (en) 2008-09-27 2017-01-10 Witricity Corporation Wirelessly powered audio devices
US8901779B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with resonator arrays for medical applications
US8482158B2 (en) 2008-09-27 2013-07-09 Witricity Corporation Wireless energy transfer using variable size resonators and system monitoring
US8598743B2 (en) 2008-09-27 2013-12-03 Witricity Corporation Resonator arrays for wireless energy transfer
US8963488B2 (en) 2008-09-27 2015-02-24 Witricity Corporation Position insensitive wireless charging
US20120062345A1 (en) * 2008-09-27 2012-03-15 Kurs Andre B Low resistance electrical conductor
US8692412B2 (en) 2008-09-27 2014-04-08 Witricity Corporation Temperature compensation in a wireless transfer system
US8933594B2 (en) 2008-09-27 2015-01-13 Witricity Corporation Wireless energy transfer for vehicles
US8957549B2 (en) 2008-09-27 2015-02-17 Witricity Corporation Tunable wireless energy transfer for in-vehicle applications
US8643326B2 (en) 2008-09-27 2014-02-04 Witricity Corporation Tunable wireless energy transfer systems
US9318922B2 (en) 2008-09-27 2016-04-19 Witricity Corporation Mechanically removable wireless power vehicle seat assembly
US9744858B2 (en) 2008-09-27 2017-08-29 Witricity Corporation System for wireless energy distribution in a vehicle
US9602168B2 (en) 2010-08-31 2017-03-21 Witricity Corporation Communication in wireless energy transfer systems
US9124122B2 (en) 2011-05-18 2015-09-01 Samsung Electronics Co., Ltd. Wireless power transmission and charging system, and impedance control method thereof
US9948145B2 (en) 2011-07-08 2018-04-17 Witricity Corporation Wireless power transfer for a seat-vest-helmet system
WO2013013235A2 (en) * 2011-07-21 2013-01-24 Witricity Corporation Wireless power component selection
EP3435389A1 (en) 2011-08-04 2019-01-30 WiTricity Corporation Tunable wireless power architectures
US9442172B2 (en) 2011-09-09 2016-09-13 Witricity Corporation Foreign object detection in wireless energy transfer systems
US20130062966A1 (en) 2011-09-12 2013-03-14 Witricity Corporation Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
US9318257B2 (en) 2011-10-18 2016-04-19 Witricity Corporation Wireless energy transfer for packaging
CN103988391A (zh) 2011-11-04 2014-08-13 WiTricity公司 无线能量传输建模工具
KR101318742B1 (ko) * 2011-11-08 2013-10-16 삼성전자주식회사 임피던스 매칭 조건을 고려한 무선 전력 전송 시스템 및 무선전력 전송 방법
KR101338654B1 (ko) * 2011-12-19 2013-12-06 엘지이노텍 주식회사 무선전력 송신장치, 무선전력 수신장치, 무선전력 전송 시스템 및 무선전력 전송 방법
KR101501485B1 (ko) * 2011-12-23 2015-03-13 전자부품연구원 다수 기기 무선 충전을 위한 무선 전력 전송 시스템
US9748790B2 (en) * 2012-01-12 2017-08-29 Facebook, Inc. System and method for a variable impedance transmitter path for charging wireless devices
WO2013113017A1 (en) 2012-01-26 2013-08-01 Witricity Corporation Wireless energy transfer with reduced fields
US8933589B2 (en) 2012-02-07 2015-01-13 The Gillette Company Wireless power transfer using separately tunable resonators
JP5662954B2 (ja) * 2012-02-08 2015-02-04 株式会社東芝 制御装置および無線電力伝送装置
US9343922B2 (en) 2012-06-27 2016-05-17 Witricity Corporation Wireless energy transfer for rechargeable batteries
US10193396B1 (en) 2014-05-07 2019-01-29 Energous Corporation Cluster management of transmitters in a wireless power transmission system
US10965164B2 (en) 2012-07-06 2021-03-30 Energous Corporation Systems and methods of wirelessly delivering power to a receiver device
US9124125B2 (en) 2013-05-10 2015-09-01 Energous Corporation Wireless power transmission with selective range
US10128693B2 (en) 2014-07-14 2018-11-13 Energous Corporation System and method for providing health safety in a wireless power transmission system
US10128699B2 (en) 2014-07-14 2018-11-13 Energous Corporation Systems and methods of providing wireless power using receiver device sensor inputs
US10206185B2 (en) 2013-05-10 2019-02-12 Energous Corporation System and methods for wireless power transmission to an electronic device in accordance with user-defined restrictions
US10243414B1 (en) 2014-05-07 2019-03-26 Energous Corporation Wearable device with wireless power and payload receiver
US10381880B2 (en) 2014-07-21 2019-08-13 Energous Corporation Integrated antenna structure arrays for wireless power transmission
US9867062B1 (en) 2014-07-21 2018-01-09 Energous Corporation System and methods for using a remote server to authorize a receiving device that has requested wireless power and to determine whether another receiving device should request wireless power in a wireless power transmission system
US9438045B1 (en) 2013-05-10 2016-09-06 Energous Corporation Methods and systems for maximum power point transfer in receivers
US10439448B2 (en) 2014-08-21 2019-10-08 Energous Corporation Systems and methods for automatically testing the communication between wireless power transmitter and wireless power receiver
US9843201B1 (en) 2012-07-06 2017-12-12 Energous Corporation Wireless power transmitter that selects antenna sets for transmitting wireless power to a receiver based on location of the receiver, and methods of use thereof
US10199835B2 (en) 2015-12-29 2019-02-05 Energous Corporation Radar motion detection using stepped frequency in wireless power transmission system
US10038337B1 (en) 2013-09-16 2018-07-31 Energous Corporation Wireless power supply for rescue devices
US10211674B1 (en) 2013-06-12 2019-02-19 Energous Corporation Wireless charging using selected reflectors
US10230266B1 (en) 2014-02-06 2019-03-12 Energous Corporation Wireless power receivers that communicate status data indicating wireless power transmission effectiveness with a transmitter using a built-in communications component of a mobile device, and methods of use thereof
US10008889B2 (en) 2014-08-21 2018-06-26 Energous Corporation Method for automatically testing the operational status of a wireless power receiver in a wireless power transmission system
US10218227B2 (en) 2014-05-07 2019-02-26 Energous Corporation Compact PIFA antenna
US10124754B1 (en) 2013-07-19 2018-11-13 Energous Corporation Wireless charging and powering of electronic sensors in a vehicle
US10090886B1 (en) 2014-07-14 2018-10-02 Energous Corporation System and method for enabling automatic charging schedules in a wireless power network to one or more devices
US9859797B1 (en) 2014-05-07 2018-01-02 Energous Corporation Synchronous rectifier design for wireless power receiver
US10992185B2 (en) 2012-07-06 2021-04-27 Energous Corporation Systems and methods of using electromagnetic waves to wirelessly deliver power to game controllers
US10103582B2 (en) 2012-07-06 2018-10-16 Energous Corporation Transmitters for wireless power transmission
US9966765B1 (en) * 2013-06-25 2018-05-08 Energous Corporation Multi-mode transmitter
US10291066B1 (en) 2014-05-07 2019-05-14 Energous Corporation Power transmission control systems and methods
US10186913B2 (en) 2012-07-06 2019-01-22 Energous Corporation System and methods for pocket-forming based on constructive and destructive interferences to power one or more wireless power receivers using a wireless power transmitter including a plurality of antennas
US10263432B1 (en) 2013-06-25 2019-04-16 Energous Corporation Multi-mode transmitter with an antenna array for delivering wireless power and providing Wi-Fi access
US11502551B2 (en) 2012-07-06 2022-11-15 Energous Corporation Wirelessly charging multiple wireless-power receivers using different subsets of an antenna array to focus energy at different locations
US10205239B1 (en) 2014-05-07 2019-02-12 Energous Corporation Compact PIFA antenna
US10063064B1 (en) 2014-05-23 2018-08-28 Energous Corporation System and method for generating a power receiver identifier in a wireless power network
US10270261B2 (en) 2015-09-16 2019-04-23 Energous Corporation Systems and methods of object detection in wireless power charging systems
US10090699B1 (en) 2013-11-01 2018-10-02 Energous Corporation Wireless powered house
US10992187B2 (en) 2012-07-06 2021-04-27 Energous Corporation System and methods of using electromagnetic waves to wirelessly deliver power to electronic devices
US20150326070A1 (en) 2014-05-07 2015-11-12 Energous Corporation Methods and Systems for Maximum Power Point Transfer in Receivers
US10223717B1 (en) 2014-05-23 2019-03-05 Energous Corporation Systems and methods for payment-based authorization of wireless power transmission service
US9825674B1 (en) 2014-05-23 2017-11-21 Energous Corporation Enhanced transmitter that selects configurations of antenna elements for performing wireless power transmission and receiving functions
US10211680B2 (en) 2013-07-19 2019-02-19 Energous Corporation Method for 3 dimensional pocket-forming
US9871398B1 (en) 2013-07-01 2018-01-16 Energous Corporation Hybrid charging method for wireless power transmission based on pocket-forming
US9853458B1 (en) 2014-05-07 2017-12-26 Energous Corporation Systems and methods for device and power receiver pairing
US10312715B2 (en) 2015-09-16 2019-06-04 Energous Corporation Systems and methods for wireless power charging
US10063105B2 (en) 2013-07-11 2018-08-28 Energous Corporation Proximity transmitters for wireless power charging systems
US10148097B1 (en) 2013-11-08 2018-12-04 Energous Corporation Systems and methods for using a predetermined number of communication channels of a wireless power transmitter to communicate with different wireless power receivers
US10141768B2 (en) 2013-06-03 2018-11-27 Energous Corporation Systems and methods for maximizing wireless power transfer efficiency by instructing a user to change a receiver device's position
US9812890B1 (en) 2013-07-11 2017-11-07 Energous Corporation Portable wireless charging pad
US10141791B2 (en) 2014-05-07 2018-11-27 Energous Corporation Systems and methods for controlling communications during wireless transmission of power using application programming interfaces
US10224758B2 (en) 2013-05-10 2019-03-05 Energous Corporation Wireless powering of electronic devices with selective delivery range
US10211682B2 (en) 2014-05-07 2019-02-19 Energous Corporation Systems and methods for controlling operation of a transmitter of a wireless power network based on user instructions received from an authenticated computing device powered or charged by a receiver of the wireless power network
US9876394B1 (en) 2014-05-07 2018-01-23 Energous Corporation Boost-charger-boost system for enhanced power delivery
US10063106B2 (en) 2014-05-23 2018-08-28 Energous Corporation System and method for a self-system analysis in a wireless power transmission network
US9887584B1 (en) 2014-08-21 2018-02-06 Energous Corporation Systems and methods for a configuration web service to provide configuration of a wireless power transmitter within a wireless power transmission system
US9787103B1 (en) 2013-08-06 2017-10-10 Energous Corporation Systems and methods for wirelessly delivering power to electronic devices that are unable to communicate with a transmitter
US10291055B1 (en) 2014-12-29 2019-05-14 Energous Corporation Systems and methods for controlling far-field wireless power transmission based on battery power levels of a receiving device
US10199849B1 (en) 2014-08-21 2019-02-05 Energous Corporation Method for automatically testing the operational status of a wireless power receiver in a wireless power transmission system
US10256657B2 (en) 2015-12-24 2019-04-09 Energous Corporation Antenna having coaxial structure for near field wireless power charging
US9287607B2 (en) 2012-07-31 2016-03-15 Witricity Corporation Resonator fine tuning
US9595378B2 (en) 2012-09-19 2017-03-14 Witricity Corporation Resonator enclosure
WO2014063159A2 (en) 2012-10-19 2014-04-24 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9842684B2 (en) 2012-11-16 2017-12-12 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
KR101462993B1 (ko) * 2012-12-27 2014-11-19 전자부품연구원 다수 기기 무선 충전을 위한 무선 전력 전송 시스템
KR101462992B1 (ko) * 2012-12-27 2014-11-19 전자부품연구원 다수 기기 무선 충전을 위한 무선 전력 전송 시스템
US10103552B1 (en) 2013-06-03 2018-10-16 Energous Corporation Protocols for authenticated wireless power transmission
KR102005781B1 (ko) * 2013-06-27 2019-07-31 한국전자통신연구원 초음파를 이용한 무선 전력 전송 장치
US10021523B2 (en) 2013-07-11 2018-07-10 Energous Corporation Proximity transmitters for wireless power charging systems
US10224751B2 (en) * 2013-08-06 2019-03-05 The University Of Hong Kong Methods for parameter identification, load monitoring and output power control in wireless power transfer systems
KR102227504B1 (ko) * 2013-08-07 2021-03-15 삼성전자주식회사 복수의 무선 전력 수신 장치에 대해 안정적으로 전력을 송신하는 무선 전력 송신 방법 및 장치
US9857821B2 (en) 2013-08-14 2018-01-02 Witricity Corporation Wireless power transfer frequency adjustment
KR102140268B1 (ko) 2013-10-21 2020-07-31 삼성전자주식회사 무선 전력 전송 시스템에서의 고립 공진기를 이용한 임피던스 매칭 방법 및 장치
US9780573B2 (en) 2014-02-03 2017-10-03 Witricity Corporation Wirelessly charged battery system
US10075017B2 (en) 2014-02-06 2018-09-11 Energous Corporation External or internal wireless power receiver with spaced-apart antenna elements for charging or powering mobile devices using wirelessly delivered power
WO2015123614A2 (en) 2014-02-14 2015-08-20 Witricity Corporation Object detection for wireless energy transfer systems
US9892849B2 (en) 2014-04-17 2018-02-13 Witricity Corporation Wireless power transfer systems with shield openings
US9842687B2 (en) 2014-04-17 2017-12-12 Witricity Corporation Wireless power transfer systems with shaped magnetic components
US10158257B2 (en) 2014-05-01 2018-12-18 Energous Corporation System and methods for using sound waves to wirelessly deliver power to electronic devices
US9837860B2 (en) 2014-05-05 2017-12-05 Witricity Corporation Wireless power transmission systems for elevators
US10153645B1 (en) 2014-05-07 2018-12-11 Energous Corporation Systems and methods for designating a master power transmitter in a cluster of wireless power transmitters
JP2017518018A (ja) 2014-05-07 2017-06-29 ワイトリシティ コーポレーションWitricity Corporation 無線エネルギー伝送システムにおける異物検出
US10153653B1 (en) 2014-05-07 2018-12-11 Energous Corporation Systems and methods for using application programming interfaces to control communications between a transmitter and a receiver
US10170917B1 (en) 2014-05-07 2019-01-01 Energous Corporation Systems and methods for managing and controlling a wireless power network by establishing time intervals during which receivers communicate with a transmitter
US9991753B2 (en) * 2014-06-11 2018-06-05 Enovate Medical Llc Variable wireless transfer
WO2015196123A2 (en) 2014-06-20 2015-12-23 Witricity Corporation Wireless power transfer systems for surfaces
WO2015196302A1 (en) 2014-06-26 2015-12-30 Solace Power Inc. Wireless electric field power transmission system, transmitter and receiver therefor and method of wirelessly transferring power
JP6518316B2 (ja) 2014-07-08 2019-05-22 ワイトリシティ コーポレーションWitricity Corporation 無線電力伝送システムにおける共振器の均衡化
US10574091B2 (en) 2014-07-08 2020-02-25 Witricity Corporation Enclosures for high power wireless power transfer systems
US10068703B1 (en) 2014-07-21 2018-09-04 Energous Corporation Integrated miniature PIFA with artificial magnetic conductor metamaterials
US10116143B1 (en) 2014-07-21 2018-10-30 Energous Corporation Integrated antenna arrays for wireless power transmission
US9635222B2 (en) 2014-08-03 2017-04-25 PogoTec, Inc. Wearable camera systems and apparatus for aligning an eyewear camera
RU2017106629A (ru) 2014-08-03 2018-09-04 Поготек, Инк. Система носимых камер и устройств, а также способ прикрепления систем камер или других электронных устройств к носимым изделиям
CN107005092B (zh) 2014-09-05 2020-03-10 索雷斯能源公司 无线电场电力传递系统、方法及其发射器和接收器
BR112017013618A2 (pt) 2014-12-23 2018-06-19 Pogotec Inc câmeras, sistemas e métodos para receber energia sem fio
US10122415B2 (en) 2014-12-27 2018-11-06 Energous Corporation Systems and methods for assigning a set of antennas of a wireless power transmitter to a wireless power receiver based on a location of the wireless power receiver
US9843217B2 (en) 2015-01-05 2017-12-12 Witricity Corporation Wireless energy transfer for wearables
US10481417B2 (en) 2015-06-10 2019-11-19 PogoTec, Inc. Magnetic attachment mechanism for electronic wearable device
JP2018521345A (ja) 2015-06-10 2018-08-02 ポゴテック インクPogoTec, Inc. ウェアラブル電子機器用の磁気的トラックを備えたアイウェア
US10523033B2 (en) 2015-09-15 2019-12-31 Energous Corporation Receiver devices configured to determine location within a transmission field
US11710321B2 (en) 2015-09-16 2023-07-25 Energous Corporation Systems and methods of object detection in wireless power charging systems
US10186893B2 (en) 2015-09-16 2019-01-22 Energous Corporation Systems and methods for real time or near real time wireless communications between a wireless power transmitter and a wireless power receiver
US10008875B1 (en) 2015-09-16 2018-06-26 Energous Corporation Wireless power transmitter configured to transmit power waves to a predicted location of a moving wireless power receiver
US10199850B2 (en) 2015-09-16 2019-02-05 Energous Corporation Systems and methods for wirelessly transmitting power from a transmitter to a receiver by determining refined locations of the receiver in a segmented transmission field associated with the transmitter
US10778041B2 (en) 2015-09-16 2020-09-15 Energous Corporation Systems and methods for generating power waves in a wireless power transmission system
US10158259B1 (en) 2015-09-16 2018-12-18 Energous Corporation Systems and methods for identifying receivers in a transmission field by transmitting exploratory power waves towards different segments of a transmission field
US10211685B2 (en) 2015-09-16 2019-02-19 Energous Corporation Systems and methods for real or near real time wireless communications between a wireless power transmitter and a wireless power receiver
US9871387B1 (en) 2015-09-16 2018-01-16 Energous Corporation Systems and methods of object detection using one or more video cameras in wireless power charging systems
US10050470B1 (en) 2015-09-22 2018-08-14 Energous Corporation Wireless power transmission device having antennas oriented in three dimensions
US10153660B1 (en) 2015-09-22 2018-12-11 Energous Corporation Systems and methods for preconfiguring sensor data for wireless charging systems
US10128686B1 (en) 2015-09-22 2018-11-13 Energous Corporation Systems and methods for identifying receiver locations using sensor technologies
US10027168B2 (en) 2015-09-22 2018-07-17 Energous Corporation Systems and methods for generating and transmitting wireless power transmission waves using antennas having a spacing that is selected by the transmitter
US10135294B1 (en) 2015-09-22 2018-11-20 Energous Corporation Systems and methods for preconfiguring transmission devices for power wave transmissions based on location data of one or more receivers
US10020678B1 (en) 2015-09-22 2018-07-10 Energous Corporation Systems and methods for selecting antennas to generate and transmit power transmission waves
US10033222B1 (en) 2015-09-22 2018-07-24 Energous Corporation Systems and methods for determining and generating a waveform for wireless power transmission waves
US10135295B2 (en) 2015-09-22 2018-11-20 Energous Corporation Systems and methods for nullifying energy levels for wireless power transmission waves
US10248899B2 (en) 2015-10-06 2019-04-02 Witricity Corporation RFID tag and transponder detection in wireless energy transfer systems
US10333332B1 (en) 2015-10-13 2019-06-25 Energous Corporation Cross-polarized dipole antenna
US10734717B2 (en) 2015-10-13 2020-08-04 Energous Corporation 3D ceramic mold antenna
US9929721B2 (en) 2015-10-14 2018-03-27 Witricity Corporation Phase and amplitude detection in wireless energy transfer systems
WO2017070227A1 (en) 2015-10-19 2017-04-27 Witricity Corporation Foreign object detection in wireless energy transfer systems
CN108781002B (zh) 2015-10-22 2021-07-06 韦特里西提公司 无线能量传输系统中的动态调谐
US9853485B2 (en) 2015-10-28 2017-12-26 Energous Corporation Antenna for wireless charging systems
US10341787B2 (en) 2015-10-29 2019-07-02 PogoTec, Inc. Hearing aid adapted for wireless power reception
US10135112B1 (en) 2015-11-02 2018-11-20 Energous Corporation 3D antenna mount
US10027180B1 (en) 2015-11-02 2018-07-17 Energous Corporation 3D triple linear antenna that acts as heat sink
US10063108B1 (en) 2015-11-02 2018-08-28 Energous Corporation Stamped three-dimensional antenna
US10075019B2 (en) 2015-11-20 2018-09-11 Witricity Corporation Voltage source isolation in wireless power transfer systems
US10079515B2 (en) 2016-12-12 2018-09-18 Energous Corporation Near-field RF charging pad with multi-band antenna element with adaptive loading to efficiently charge an electronic device at any position on the pad
US10320446B2 (en) 2015-12-24 2019-06-11 Energous Corporation Miniaturized highly-efficient designs for near-field power transfer system
US11863001B2 (en) 2015-12-24 2024-01-02 Energous Corporation Near-field antenna for wireless power transmission with antenna elements that follow meandering patterns
US10256677B2 (en) 2016-12-12 2019-04-09 Energous Corporation Near-field RF charging pad with adaptive loading to efficiently charge an electronic device at any position on the pad
US10116162B2 (en) 2015-12-24 2018-10-30 Energous Corporation Near field transmitters with harmonic filters for wireless power charging
US10027159B2 (en) 2015-12-24 2018-07-17 Energous Corporation Antenna for transmitting wireless power signals
US10038332B1 (en) 2015-12-24 2018-07-31 Energous Corporation Systems and methods of wireless power charging through multiple receiving devices
US10008886B2 (en) 2015-12-29 2018-06-26 Energous Corporation Modular antennas with heat sinks in wireless power transmission systems
JP6956728B2 (ja) 2016-02-02 2021-11-02 ワイトリシティ コーポレーションWitricity Corporation ワイヤレス電力伝送システムの制御
US10063104B2 (en) 2016-02-08 2018-08-28 Witricity Corporation PWM capacitor control
US11558538B2 (en) 2016-03-18 2023-01-17 Opkix, Inc. Portable camera system
US10923954B2 (en) 2016-11-03 2021-02-16 Energous Corporation Wireless power receiver with a synchronous rectifier
EP3539285A4 (en) 2016-11-08 2020-09-02 Pogotec, Inc. PORTABLE ELECTRONIC DEVICE INTELLIGENT BOX
JP6691273B2 (ja) 2016-12-12 2020-04-28 エナージャス コーポレイション 配送される無線電力を最大化するために近接場充電パッドのアンテナ区域を選択的に活性化する方法
US10439442B2 (en) 2017-01-24 2019-10-08 Energous Corporation Microstrip antennas for wireless power transmitters
US10389161B2 (en) 2017-03-15 2019-08-20 Energous Corporation Surface mount dielectric antennas for wireless power transmitters
US10680319B2 (en) 2017-01-06 2020-06-09 Energous Corporation Devices and methods for reducing mutual coupling effects in wireless power transmission systems
US11011942B2 (en) 2017-03-30 2021-05-18 Energous Corporation Flat antennas having two or more resonant frequencies for use in wireless power transmission systems
US10511097B2 (en) 2017-05-12 2019-12-17 Energous Corporation Near-field antennas for accumulating energy at a near-field distance with minimal far-field gain
US11462949B2 (en) 2017-05-16 2022-10-04 Wireless electrical Grid LAN, WiGL Inc Wireless charging method and system
US10848853B2 (en) 2017-06-23 2020-11-24 Energous Corporation Systems, methods, and devices for utilizing a wire of a sound-producing device as an antenna for receipt of wirelessly delivered power
WO2019006376A1 (en) 2017-06-29 2019-01-03 Witricity Corporation PROTECTION AND CONTROL OF WIRELESS POWER SYSTEMS
US10122219B1 (en) 2017-10-10 2018-11-06 Energous Corporation Systems, methods, and devices for using a battery as a antenna for receiving wirelessly delivered power from radio frequency power waves
DE102017218676B4 (de) * 2017-10-19 2023-03-23 Robert Bosch Gmbh LIDAR-Sensor mit einer Vorrichtung zur kontaktlosen Übertragung von Daten und von Energie und zur Winkelmessung
US11342798B2 (en) 2017-10-30 2022-05-24 Energous Corporation Systems and methods for managing coexistence of wireless-power signals and data signals operating in a same frequency band
KR101939045B1 (ko) * 2017-12-21 2019-01-25 주식회사 파워리퍼블릭 자기공진 무선전력전송 초음파 가습장치
US10615647B2 (en) 2018-02-02 2020-04-07 Energous Corporation Systems and methods for detecting wireless power receivers and other objects at a near-field charging pad
US11159057B2 (en) 2018-03-14 2021-10-26 Energous Corporation Loop antennas with selectively-activated feeds to control propagation patterns of wireless power signals
US10571538B2 (en) 2018-06-01 2020-02-25 General Electric Company Diagnostic device and method for diagnosing a faulty condition in a gradient amplifier system
US11515732B2 (en) 2018-06-25 2022-11-29 Energous Corporation Power wave transmission techniques to focus wirelessly delivered power at a receiving device
US11300857B2 (en) 2018-11-13 2022-04-12 Opkix, Inc. Wearable mounts for portable camera
US11437735B2 (en) 2018-11-14 2022-09-06 Energous Corporation Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body
US11539243B2 (en) 2019-01-28 2022-12-27 Energous Corporation Systems and methods for miniaturized antenna for wireless power transmissions
JP2022519749A (ja) 2019-02-06 2022-03-24 エナージャス コーポレイション アンテナアレイ内の個々のアンテナに使用するための最適位相を推定するシステム及び方法
US11381118B2 (en) 2019-09-20 2022-07-05 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
US11411441B2 (en) 2019-09-20 2022-08-09 Energous Corporation Systems and methods of protecting wireless power receivers using multiple rectifiers and establishing in-band communications using multiple rectifiers
WO2021055900A1 (en) 2019-09-20 2021-03-25 Energous Corporation Classifying and detecting foreign objects using a power amplifier controller integrated circuit in wireless power transmission systems
WO2021055898A1 (en) 2019-09-20 2021-03-25 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
WO2021119483A1 (en) 2019-12-13 2021-06-17 Energous Corporation Charging pad with guiding contours to align an electronic device on the charging pad and efficiently transfer near-field radio-frequency energy to the electronic device
US10985617B1 (en) 2019-12-31 2021-04-20 Energous Corporation System for wirelessly transmitting energy at a near-field distance without using beam-forming control
US11799324B2 (en) 2020-04-13 2023-10-24 Energous Corporation Wireless-power transmitting device for creating a uniform near-field charging area
US11916398B2 (en) 2021-12-29 2024-02-27 Energous Corporation Small form-factor devices with integrated and modular harvesting receivers, and shelving-mounted wireless-power transmitters for use therewith

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1799075A (zh) * 2003-06-02 2006-07-05 匹兹堡大学高等教育联邦体系 在诸如芯片或印刷电路板的无线无系留装置上的用于从空间获得能量的天线
US20080294062A1 (en) * 2007-05-25 2008-11-27 Rapoport Benjamin I Low-power analog architecture for brain-machine interfaces
WO2009111597A2 (en) * 2008-03-05 2009-09-11 Nigel Power Llc Packaging and details of a wireless power device
CN101569055A (zh) * 2006-09-05 2009-10-28 索尼爱立信移动通讯股份有限公司 天线系统和用于操作天线系统的方法

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630475A (en) * 1947-08-29 1953-03-03 Rca Corp Means for measuring impedance at radio frequencies
DE4236286A1 (de) * 1992-10-28 1994-05-05 Daimler Benz Ag Verfahren und Anordnung zum automatischen berührungslosen Laden
US6285251B1 (en) 1998-04-02 2001-09-04 Ericsson Inc. Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control
US6393912B2 (en) * 1998-08-14 2002-05-28 Mts Systems Corporation Electromagnetic method of the angular displacement monitoring
US6700538B1 (en) * 2000-03-29 2004-03-02 Time Domain Corporation System and method for estimating separation distance between impulse radios using impulse signal amplitude
JP3650317B2 (ja) * 2000-08-23 2005-05-18 日本電信電話株式会社 電磁場受信装置
JP2004166384A (ja) * 2002-11-12 2004-06-10 Sharp Corp 非接触型給電システムにおける電磁結合特性調整方法、給電装置、および非接触型給電システム
KR100574506B1 (ko) * 2004-02-26 2006-04-27 삼성전자주식회사 연산된 방위각의 오류여부를 표시하는 지자기센서 및 그방위각측정방법
WO2005088850A1 (ja) * 2004-03-17 2005-09-22 Brother Kogyo Kabushiki Kaisha 位置検出システム、応答器及び質問器、無線通信システム、位置検出方法、位置検出用プログラム及び情報記録媒体
JP2006005978A (ja) 2004-06-15 2006-01-05 Ntn Corp ワイヤレスセンサシステムおよびワイヤレスイセンサ付軸受装置
KR20040072581A (ko) 2004-07-29 2004-08-18 (주)제이씨 프로텍 전자기파 증폭중계기 및 이를 이용한 무선전력변환장치
JP4641849B2 (ja) * 2005-01-27 2011-03-02 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 無線通信装置及び携帯端末装置
EP2027705A2 (en) 2006-06-14 2009-02-25 Powercast Corporation Wireless power transmission
US8339096B2 (en) 2006-11-20 2012-12-25 Semiconductor Energy Laboratory Co., Ltd. Wireless power receiving device
JP5075455B2 (ja) 2007-04-11 2012-11-21 オリンパス株式会社 無線給電システム
JP2008283804A (ja) 2007-05-11 2008-11-20 Kansai Electric Power Co Inc:The 無線電力供給システム
US9124120B2 (en) 2007-06-11 2015-09-01 Qualcomm Incorporated Wireless power system and proximity effects
KR100912063B1 (ko) 2007-07-26 2009-08-12 한국전기연구원 듀얼 주파수 밴드를 이용한 고효율 무선 전력 전원 공급장치
US20090058189A1 (en) 2007-08-13 2009-03-05 Nigelpower, Llc Long range low frequency resonator and materials
KR101473600B1 (ko) * 2007-09-17 2014-12-16 퀄컴 인코포레이티드 무선 전력 자기 공진기에서의 고효율 및 고전력 전송
US8766483B2 (en) 2007-11-28 2014-07-01 Qualcomm Incorporated Wireless power range increase using parasitic antennas
TWI361540B (en) 2007-12-14 2012-04-01 Darfon Electronics Corp Energy transferring system and method thereof
WO2009140506A1 (en) * 2008-05-14 2009-11-19 Massachusetts Institute Of Technology Wireless energy transfer, including interference enhancement
JP5114371B2 (ja) 2008-12-09 2013-01-09 株式会社豊田自動織機 非接触電力伝送装置
JP5114372B2 (ja) * 2008-12-09 2013-01-09 株式会社豊田自動織機 非接触電力伝送装置における電力伝送方法及び非接触電力伝送装置
JP2010183814A (ja) * 2009-02-09 2010-08-19 Toyota Industries Corp 非接触電力伝送装置
JP5481091B2 (ja) * 2009-04-14 2014-04-23 富士通テン株式会社 無線電力伝送装置および無線電力伝送方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1799075A (zh) * 2003-06-02 2006-07-05 匹兹堡大学高等教育联邦体系 在诸如芯片或印刷电路板的无线无系留装置上的用于从空间获得能量的天线
CN101569055A (zh) * 2006-09-05 2009-10-28 索尼爱立信移动通讯股份有限公司 天线系统和用于操作天线系统的方法
US20080294062A1 (en) * 2007-05-25 2008-11-27 Rapoport Benjamin I Low-power analog architecture for brain-machine interfaces
WO2009111597A2 (en) * 2008-03-05 2009-09-11 Nigel Power Llc Packaging and details of a wireless power device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769812A (zh) * 2012-09-07 2015-07-08 三星电子株式会社 用于在磁谐振无线电力发送系统中的无线电力发送器的通信和电力控制的方法
CN108429325A (zh) * 2013-03-22 2018-08-21 三星电子株式会社 无线电力发送器及其控制方法
US11146091B2 (en) 2013-03-22 2021-10-12 Samsung Electronics Co., Ltd Wireless power transmitter, wireless power receiver, and control methods thereof
CN108429325B (zh) * 2013-03-22 2021-11-30 三星电子株式会社 无线电力发送器及其控制方法

Also Published As

Publication number Publication date
US8334620B2 (en) 2012-12-18
US20130069735A1 (en) 2013-03-21
JP5681995B2 (ja) 2015-03-11
WO2011056039A3 (en) 2011-11-10
US8604644B2 (en) 2013-12-10
EP2499717A2 (en) 2012-09-19
EP2499717A4 (en) 2017-05-31
EP2499717B1 (en) 2019-07-10
US20110109167A1 (en) 2011-05-12
WO2011056039A2 (en) 2011-05-12
JP2013510550A (ja) 2013-03-21
KR101706616B1 (ko) 2017-02-14
KR20110050920A (ko) 2011-05-17
CN102640396B (zh) 2015-12-16

Similar Documents

Publication Publication Date Title
CN102640396B (zh) 负载阻抗决定装置、无线电力传输装置及无线电力传输方法
US11159064B2 (en) Electronic device and method for transmission of reason wireless charging is stopping
US9692251B2 (en) Apparatus, system and method of wireless power transfer
EP2348603A2 (en) Wireless power transmission device and method
US10020684B2 (en) Apparatus, system and method of multiple device wireless power transfer
CN103915879A (zh) 在电子装置中显示关于无线充电板的信息的方法和设备
CN104184218A (zh) 无线电力发射器及其无线电力传送方法
EP2312726A2 (en) Wireless power transmission device, wireless power transmission control device, and wireless power transmission method
TW201835531A (zh) 無線充電方法、裝置及系統
CN114731061A (zh) 使用无线功率发射系统中的功率放大器控制器集成电路来分类和检测异物
US20080200210A1 (en) Mobile communication device and battery recharge method thereof
CN102244399A (zh) 用于发送电能和数据的方法和设备
US9866065B2 (en) Energy transmission apparatus and method
JP2008118575A (ja) 通信システム、通信装置、並びに通信装置のための充電器
US8704640B2 (en) Passive wireless memory device
US11862990B2 (en) Wireless charging device and method for charging electronic device using the same
KR20210048816A (ko) 차량 배터리 충전 시스템, 장치 및 방법
CN102332617B (zh) 便携式终端及识别该便携式终端的电池的方法
US20120081069A1 (en) Communication apparatus and signal processing method
KR102595229B1 (ko) 도전성 부재에 관한 검출 회로를 포함하는 전자 장치
CN112713627A (zh) 电压控制方法、电压控制装置、存储介质与电子设备
US7627769B2 (en) Electronic device and method for managing power distribution therein
JP6488243B2 (ja) 無線充電装置上に配置される電子デバイスに基づくフィードバックの提供
Goitre Bringing NFC wireless charging to consumer devices
KR102514444B1 (ko) 에너지 수집 장치

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20191109