公开(公告)号：WO2014011776A3

公开(公告)日：2014-04-10

申请号：PCT/US2013049935

申请日：2013-07-10

Applicant: QUALCOMM INC

Inventor： WIDMER HANSPETER ,  BITTNER MARKUS ,  SIEBER LUKAS ,  FISCHER MARCEL

IPC: H04B5/00

CPC classification number: G01D5/2006 ,  B60L3/003 ,  B60L3/0038 ,  B60L3/0046 ,  B60L3/04 ,  B60L11/14 ,  B60L11/1803 ,  B60L11/182 ,  B60L11/1824 ,  B60L11/1833 ,  B60L11/1835 ,  B60L11/1842 ,  B60L11/1844 ,  B60L11/1846 ,  B60L11/1877 ,  B60L2200/12 ,  B60L2200/22 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2230/16 ,  B60L2240/36 ,  B60L2240/525 ,  B60L2250/16 ,  B60L2270/147 ,  B60L2270/32 ,  B60L2270/34 ,  G01N27/725 ,  G01V3/10 ,  H01F38/14 ,  H02J50/12 ,  H02J50/60 ,  H04B5/0037 ,  H04B5/0043 ,  Y02E60/721 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7088 ,  Y02T10/7241 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S10/126 ,  Y04S30/14

Abstract: This disclosure provides systems, methods and apparatus for detecting foreign objects. In one aspect an apparatus for detecting a presence of an object is provided. The apparatus includes a resonant circuit having a resonant frequency. The resonant circuit includes a sense circuit including an electrically conductive structure. The apparatus further includes a coupling circuit coupled to the sense circuit. The apparatus further includes a detection circuit coupled to the sense circuit via the coupling circuit. The detection circuit is configured to detect the presence of the object in response to detecting a difference between a measured characteristic that depends on a frequency at which the resonant circuit is resonating and a corresponding characteristic that depends on the resonant frequency of the resonant circuit. The coupling circuit is configured to reduce a variation of the resonant frequency by the detection circuit in the absence of the object.

Abstract translation: 本公开提供了用于检测异物的系统，方法和装置。 提供了一种用于检测物体存在的装置。 该装置包括具有谐振频率的谐振电路。 谐振电路包括包括导电结构的感测电路。 该装置还包括耦合到感测电路的耦合电路。 该装置还包括经由耦合电路耦合到感测电路的检测电路。 检测电路被配置为响应于检测到取决于谐振电路谐振的频率的测量特性与取决于谐振电路的谐振频率的对应特性之间的差异来检测对象的存在。 耦合电路被配置为在没有对象的情况下通过检测电路减小谐振频率的变化。

公开(公告)号：WO2014062577A3

公开(公告)日：2014-11-27

申请号：PCT/US2013064858

申请日：2013-10-14

Applicant: QUALCOMM INC

Inventor： KEELING NICHOLAS A ,  BUDHIA MICKEL ,  WIDMER HANSPETER ,  FISCHER MARCEL ,  SIEBER LUKAS

IPC: B60L11/18 ,  H01F38/14 ,  H02J5/00 ,  H02J7/02

CPC classification number: B60L11/182 ,  G05F1/14 ,  H01F38/14 ,  H01F2027/348 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

Abstract: This disclosure provides systems, methods and apparatus for wireless power transfer. In one aspect an apparatus for wirelessly transferring power from a charging power source to a device is provided. The apparatus includes a first strand wound in one or more turns and operationally coupled to the charging power source and a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source. The apparatus further includes an inductor circuit connected to the first strand and disconnected from the second strand. The inductor circuit is further configured to reduce a current difference between a first current flowing through the first strand and a second current flowing through the second strand.

Abstract translation: 本公开提供了用于无线电力传送的系统，方法和装置。 在一个方面，提供了一种用于将功率从充电电源无线传输到设备的装置。 该装置包括缠绕成一个或多个匝并且可操作地耦合到充电电源的第一股线，以及以一匝或多匝卷绕在第一股线上的第二股线，并且可操作地耦合到充电电源。 该装置还包括连接到第一股线并与第二股线分离的电感器电路。 电感器电路还被配置为减小流过第一股线的第一电流与流过第二股线的第二电流之间的电流差。