公开(公告)号：US20150109000A1

公开(公告)日：2015-04-23

申请号：US14218516

申请日：2014-03-18

Applicant: QUALCOMM Incorporated

Inventor： Lukas Sieber ,  Marcel Fischer ,  Hanspeter Widmer

IPC: G01B7/00 ,  G01R29/08

CPC classification number: G01B7/003 ,  B60L11/182 ,  B60L11/1829 ,  B60L11/1833 ,  B60L2270/147 ,  G01R29/0807 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14

Abstract: This disclosure provides systems, methods and apparatus for detecting foreign objects. An apparatus for detecting a presence of an object is provided including a plurality of electrically conductive loops arranged in an array. The apparatus includes a sensor circuit configured to determine a characteristic associated with each of the plurality of loops. The apparatus includes a hardware processor configured to, for each loop of the plurality of loops, determine a parameter based on the characteristic associated with the loop and the characteristic associated with at least one adjacent loop. The hardware processor may be further configured to determine the presence of the object based on the parameter. The parameter may comprise a sum of a difference between the characteristic associated with the loop and a reference value for the characteristic, and a difference between the characteristic associated with each of the at least one adjacent loop and the reference value.

Abstract translation: 本公开提供了用于检测异物的系统，方法和装置。 提供一种用于检测物体存在的装置，其包括以阵列布置的多个导电环。 该装置包括被配置为确定与多个循环中的每一个相关联的特性的传感器电路。 该装置包括硬件处理器，该硬件处理器被配置为针对多个循环的每个循环，基于与循环相关联的特性和与至少一个相邻循环相关联的特性来确定参数。 硬件处理器可以被进一步配置为基于该参数来确定对象的存在。 该参数可以包括与环路相关联的特性与特性的参考值之间的差异之和，以及与至少一个相邻循环中的每一个相关联的特征与参考值之间的差值。

公开(公告)号：US20180361863A1

公开(公告)日：2018-12-20

申请号：US15625882

申请日：2017-06-16

Applicant: QUALCOMM Incorporated

Inventor： Simon Islinger ,  RafaI Scibor ,  Marcel Fischer ,  Leandro Percebon ,  Stefan Raabe ,  Martin Pavlovsky ,  Jonas Friedel

IPC: B60L11/18 ,  H02J7/02 ,  H02J7/00

CPC classification number: H02J7/0027 ,  B60L53/122 ,  B60L53/124 ,  B60L53/22 ,  H02J7/0042 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80

Abstract: One aspect of the disclosure provides an apparatus for conveying wireless power. The apparatus comprises a circuit board disposed along one or more planar coils and a plurality of feeds. The circuit board is divided into a first area separate from a second area. The first area has a plurality of first voltage components and the second area has a plurality of second voltage components. The first voltage components operates at a lower voltage than the second voltage components. The plurality of feeds are coupled to the one or more planar coils and the circuit board. The plurality of feeds pass through the circuit board within the second area along a side of the circuit board and couple to one or more of the second voltage components.

公开(公告)号：US09410823B2

公开(公告)日：2016-08-09

申请号：US13791365

申请日：2013-03-08

Applicant: QUALCOMM Incorporated

Inventor： Hanspeter Widmer ,  Markus Bittner ,  Lukas Sieber ,  Marcel Fischer

IPC: B60L1/00 ,  G01S13/04 ,  G01D5/20 ,  H01F38/14 ,  G01N27/72 ,  B60L3/00 ,  B60L3/04 ,  B60L11/14 ,  B60L11/18 ,  H04B5/00 ,  G01V3/10

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 in a magnetic field is provided. The apparatus includes a power circuit configured to generate the magnetic field and transfer power wirelessly at a level sufficient to power or charge a load via the magnetic field. The apparatus further includes a detection circuit configured to transmit signals and detect, based on a reflection of the transmitted signals, a frequency of vibration of the object caused by the magnetic field.

Abstract translation: 本公开提供了用于检测异物的系统，方法和装置。 在一个方面，提供一种用于检测物体在磁场中的存在的装置。 该装置包括电源电路，其被配置为产生磁场并以足以通过磁场对负载供电或充电的水平无线地传送电力。 该装置还包括检测电路，该检测电路被配置为发送信号并且基于所发送的信号的反射来检测由该磁场引起的物体的振动频率。

公开(公告)号：US10046659B2

公开(公告)日：2018-08-14

申请号：US14863231

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Roman Bucher ,  Marcel Fischer ,  Hans Peter Widmer

IPC: H02J5/00 ,  B60L11/18 ,  H02J7/02 ,  H02J7/04 ,  H02J50/12 ,  H02M3/335 ,  H02M3/337 ,  H02J50/80 ,  H02M1/00

Abstract: An apparatus for wirelessly receiving power from a wireless power transmitter is provided. The apparatus comprises an active switching rectifier operably connected to a coupler and configured to operate in a first bridge mode and a second bridge mode. The apparatus comprises a controller configured to adjust an input resistance of the rectifier to a first value that provides a first wireless power transfer efficiency when the rectifier operates in the first bridge mode. The controller is configured to adjust the input resistance of the rectifier to a second value that provides a second wireless power transfer efficiency less than the first wireless power transfer efficiency while operating within one or more operating limitations when the rectifier operates in the second bridge mode.

公开(公告)号：US09376026B2

公开(公告)日：2016-06-28

申请号：US13937154

申请日：2013-07-08

Applicant: QUALCOMM Incorporated

Inventor： Nicholas A. Keeling ,  Mickel Budhia ,  Hanspeter Widmer ,  Marcel Fischer ,  Lukas Sieber

IPC: H02J7/00 ,  B60L11/18 ,  H01F38/14 ,  G05F1/14 ,  H02J5/00 ,  H02J7/02 ,  H01F27/34

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输的系统，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。 该装置包括以一匝或多匝缠绕的第一股线，并且可操作地耦合到充电电源，以及以一匝或多匝缠绕在第一股线上的第二股线，并且可操作地连接到充电电源。 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。

公开(公告)号：US20160176300A1

公开(公告)日：2016-06-23

申请号：US14863231

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Roman Bucher ,  Marcel Fischer ,  Hans Peter Widmer

IPC: B60L11/18 ,  H02J5/00

CPC classification number: B60L11/182 ,  B60L2210/30 ,  H02J5/005 ,  H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H02M3/33523 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T10/92 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

Abstract: An apparatus for wirelessly receiving power from a wireless power transmitter is provided. The apparatus comprises an active switching rectifier operably connected to a coupler and configured to operate in a first bridge mode and a second bridge mode. The apparatus comprises a controller configured to adjust an input resistance of the rectifier to a first value that provides a first wireless power transfer efficiency when the rectifier operates in the first bridge mode. The controller is configured to adjust the input resistance of the rectifier to a second value that provides a second wireless power transfer efficiency less than the first wireless power transfer efficiency while operating within one or more operating limitations when the rectifier operates in the second bridge mode.

Abstract translation: 提供了一种从无线电力发射机无线接收电力的装置。 该装置包括可操作地连接到耦合器并被配置为以第一桥模式和第二桥模式操作的有源开关整流器。 该装置包括控制器，其被配置为当整流器以第一桥模式工作时，将整流器的输入电阻调整为提供第一无线功率传输效率的第一值。 控制器被配置为当整流器以第二桥模式操作时，在整流器的一个或多个操作限制内工作时，将整流器的输入电阻调节到第二值，该值提供小于第一无线功率传输效率的第二无线功率传输效率。

公开(公告)号：US20140111151A1

公开(公告)日：2014-04-24

申请号：US13937154

申请日：2013-07-08

Applicant: QUALCOMM Incorporated

Inventor： Nicholas A. Keeling ,  Mickel Budhia ,  Hanspeter Widmer ,  Marcel Fischer ,  Lukas Sieber

IPC: B60L11/18

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输的系统，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。 该装置包括以一匝或多匝缠绕的第一股线，并且可操作地耦合到充电电源，以及以一匝或多匝缠绕在第一股线上的第二股线，并且可操作地连接到充电电源。 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。

公开(公告)号：US20170328740A1

公开(公告)日：2017-11-16

申请号：US15663468

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hanspeter Widmer ,  Markus Bittner ,  Lukas Sieber ,  Marcel Fischer

IPC: G01D5/20 ,  G01N27/72 ,  B60L3/00 ,  B60L3/04 ,  B60L11/14 ,  B60L11/18 ,  H04B5/00 ,  H01F38/14 ,  H02J50/12 ,  H02J50/60 ,  G01V3/10

CPC classification number: G01D5/2006 ,  B60L3/003 ,  B60L3/0038 ,  B60L3/0046 ,  B60L3/04 ,  B60L50/16 ,  B60L50/51 ,  B60L50/66 ,  B60L53/12 ,  B60L53/124 ,  B60L53/30 ,  B60L53/305 ,  B60L53/36 ,  B60L53/37 ,  B60L53/63 ,  B60L53/65 ,  B60L55/00 ,  B60L2200/12 ,  B60L2200/22 ,  B60L2210/30 ,  B60L2210/40 ,  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.

公开(公告)号：US20140015329A1

公开(公告)日：2014-01-16

申请号：US13791585

申请日：2013-03-08

Applicant: QUALCOMM INCORPORATED

Inventor： Hanspeter Widmer ,  Markus Bittner ,  Lukas Sieber ,  Marcel Fischer

IPC: G01D5/20 ,  H01F38/14

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相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：US20190089171A1

公开(公告)日：2019-03-21

申请号：US15709314

申请日：2017-09-19

Applicant: Qualcomm Incorporated

Inventor： Marcel Fischer ,  Patrick Lattmann

IPC: H02J7/00 ,  B60L11/18 ,  H02J7/02 ,  H02J7/04

Abstract: The present disclosure describes aspects of ripple current reduction for wireless electric vehicle charging. In some aspects, an apparatus for wireless power transmission includes an inverter circuit to provide alternating current and a resonant circuit having a tuning portion and a coil portion to transmit power based on the alternating current. The apparatus also includes a current sensor to provide an indication of peak-to-peak amplitude (e.g., ripple current) of the alternating current that flows to the coil portion of the resonant circuit. Based on this indication, a control signal of the inverter is altered to adjust the peak-to-peak amplitude of the alternating current, such as to reduce ripple current in the coil portion. By so doing, ripple current can be reduced in power-transmitting or power-receiving devices, which may improve power transmission efficiency, enable use of smaller decoupling capacitors, or reduce stress on elements of respective resonant circuits.