公开(公告)号：EP2769454A2

公开(公告)日：2014-08-27

申请号：EP12787567.2

申请日：2012-10-17

Applicant: Qualcomm Incorporated

Inventor： WHEELAND, Cody B. ,  TSENG, Ryan ,  VON NOVAK III, William Henry

IPC: H02J17/00

CPC classification number: H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

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 a drain of a switching element of a driver circuit of the wireless power transmitter. The method further comprises determining a reactance load change based on the determined voltage.

公开(公告)号：WO2013059300A2

公开(公告)日：2013-04-25

申请号：PCT/US2012/060590

申请日：2012-10-17

Applicant: QUALCOMM INCORPORATED

Inventor： WHEELAND, Cody B. ,  TSENG, Ryan ,  VON NOVAK, William H.

IPC: H02J17/00

CPC classification number: H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

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 a drain of a switching element of a driver circuit of the wireless power transmitter. The method further comprises determining a reactance load change based on the determined voltage.

Abstract translation: 本公开提供了用于检测无线功率发射机负载的阻抗的系统，方法和装置。 一方面，提供一种确定无线电力发送装置的无功状况的方法。 该方法包括确定与无线功率发射器的驱动器电路的开关元件的漏极的电压相关的值。 该方法还包括基于确定的电压来确定电抗负载变化。

公开(公告)号：WO2012109610A1

公开(公告)日：2012-08-16

申请号：PCT/US2012/024751

申请日：2012-02-10

Applicant: QUALCOMM INCORPORATED ,  KALLAL, Edward ,  TSENG, Ryan

Inventor： KALLAL, Edward ,  TSENG, Ryan

IPC: H04B5/00 ,  H02J5/00 ,  H02J7/02 ,  H02J17/00

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0043 ,  H04B5/0075 ,  H04B17/21 ,  H04B17/24

Abstract: Systems and methods for alignment and calibration of a wireless power transmitter and a wireless power receiver are disclosed. According to one aspect, a wireless power transmit coil is first aligned with a wireless power receive coil. An alignment signal is received indicated that the transmit coil and the receive coil are aligned is received by the wireless power transmitter. A signal indicative of a characteristic of an electrical signal received by the wireless power receiver is generated and communicated to the wireless power transmitter. A calibration feedback signal is generated to adjust a driving signal of the wireless power transmitter based on the received signal.

Abstract translation: 公开了用于对准和校准无线电力发射器和无线电力接收器的系统和方法。 根据一个方面，无线电力发射线圈首先与无线电力接收线圈对齐。 接收到对准信号，指示发射线圈和接收线圈对准被无线电力发射器接收。 生成指示由无线电力接收器接收的电信号的特性的信号并将其传送至无线电力发送器。 校准反馈信号被生成以基于所接收的信号来调节无线电力发射器的驱动信号。

公开(公告)号：WO2015027091A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/052145

申请日：2014-08-21

Applicant: QUALCOMM INCORPORATED

Inventor： KALLAL, Edward Kenneth ,  WHITE II, Mark David ,  TSENG, Ryan

IPC: H02J5/00 ,  H04B5/00

CPC classification number: H02J50/12 ,  G01R21/01 ,  G01R29/0814 ,  G01V3/12 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/007 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0075

Abstract: Systems, methods and apparatus are disclosed for detecting power losses due to induction heating in wireless power receivers (708). In one aspect, an apparatus for wireless power transfer (704) comprises a power transfer component (714) configured to transmit wireless power to a wireless power receiver (708) at a power level sufficient to charge or power a load. The apparatus further comprises a communications receiver (710) configured to receive a message from the wireless power receiver (708), the message comprising a group identifier. The apparatus further comprises a controller circuit (715) operationally coupled to the power transfer component (714) and the communications receiver (710) and configured to determine a power loss value based on the group identifier, the power loss value indicative of power loss due to induction heating presented by one or more wireless power receivers (708) that are members of a group associated with the group identifier.

Abstract translation: 公开了用于检测由无线电力接收器中的感应加热引起的功率损耗的系统，方法和装置（708）。 一方面，一种用于无线电力传输（704）的装置包括功率传输组件（714），其被配置为以足以对负载充电或供电的功率电平向无线电力接收器（708）发送无线电力。 该装置还包括被配置为从无线电力接收器（708）接收消息的通信接收机（710），该消息包括组标识符。 该装置还包括操作上耦合到功率传输部件（714）和通信接收器（710）的控制器电路（715），并且被配置为基于组标识符确定功率损耗值，功率损耗值表示功率损耗 由作为与组标识符相关联的组的成员的一个或多个无线电力接收器（708）呈现的感应加热。

公开(公告)号：WO2011071950A3

公开(公告)日：2011-06-16

申请号：PCT/US2010/059334

申请日：2010-12-07

Applicant: QUALCOMM Incorporated ,  TSENG, Ryan ,  MAYO, Gabriel

Inventor： TSENG, Ryan ,  MAYO, Gabriel

IPC: H03F3/217

Abstract: Exemplary embodiments are directed to differentially driving a load. An apparatus includes a differential drive amplifier including a switching device coupled with a first output node and a second output node. The first output node and the second output node drive a load network including primary coils. The differential drive amplifier also includes a drive circuit configured to drive the switching device. The drive circuit may be configured to provide a drive signal to the switching device to alter a conductive state of the switching device to produce a first output signal at the first output node and a second output signal at the second output node. The first and second output signals may be substantially equal in magnitude but opposite in polarity relative to a reference voltage.

公开(公告)号：WO2015175690A1

公开(公告)日：2015-11-19

申请号：PCT/US2015/030614

申请日：2015-05-13

Applicant: QUALCOMM INCORPORATED

Inventor： NEJATALI, Abdolhossein ,  CAROBOLANTE, Francesco ,  TSENG, Ryan

IPC: H04B5/00

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H04B5/0043 ,  H04B17/11 ,  H04B17/21 ,  H04L7/0332

Abstract: A wireless power transmitter may generate a magnetic field via a transmit antenna to induce voltage in a receive antenna of a wireless power receiver to power the unit and/or charge the receiver's battery. An apparatus for measuring wireless power transfer at an operating frequency between the transmitter and the receiver is provided. The apparatus comprises a first clock configured to generate a first clock signal at a first clock frequency that is higher than the operating frequency of the wireless power transfer. The apparatus further comprises a controller configured to operate based on a second clock signal, the first clock frequency higher than a second clock frequency of the second clock signal. The controller is further configured to measure an amount of wireless power transfer based on the first clock signal.

Abstract translation: 无线电力发射器可以经由发射天线产生磁场，以在无线电力接收器的接收天线中感应出电压，为该单元供电和/或对接收器的电池充电。 提供了一种用于在发射机和接收机之间的工作频率测量无线功率传输的装置。 该装置包括第一时钟，其被配置为以比无线电力传送的工作频率高的第一时钟频率产生第一时钟信号。 该装置还包括控制器，其被配置为基于第二时钟信号操作第一时钟频率，该第一时钟频率高于第二时钟信号的第二时钟频率。 控制器还被配置为基于第一时钟信号来测量无线功率传输的量。

公开(公告)号：WO2013059330A1

公开(公告)日：2013-04-25

申请号：PCT/US2012/060626

申请日：2012-10-17

Applicant: QUALCOMM INCORPORATED

Inventor： VON NOVAK, William H. ,  ARCHAMBAULT, Joseph L. ,  WOOD, Adam J. ,  KALLAL, Edward ,  TSENG, Ryan ,  MAYO, Gabriel Issak

IPC: H04B5/00

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037

Abstract: This disclosure provides systems, methods, and apparatus for the limiting of voltage in wireless power receivers. In one aspect, an apparatus includes a power transfer component configured to receive power wirelessly from a transmitter. The apparatus further includes a circuit coupled to the power transfer component and configured to reduce a received voltage when activated. The apparatus further includes a controller configured to activate the circuit when the received voltage reaches a first threshold value and configured to deactivate the circuit when the received voltage reaches a second threshold value. The apparatus further includes an antenna configured to generate a signal to the transmitter that signals to the transmitter that the received voltage reached the first threshold value.

Abstract translation: 本公开提供了用于限制无线电力接收器中的电压的系统，方法和装置。 一方面，一种装置包括被配置为从发射机无线地接收功率的功率传输组件。 该装置还包括耦合到功率传输部件并且被配置为当激活时减小接收电压的电路。 该装置还包括控制器，其被配置为当接收电压达到第一阈值时激活电路，并且被配置为当接收电压达到第二阈值时停用电路。 该装置还包括配置成向发射机产生信号的天线，其向发射机发出接收电压达到第一阈值的信号。

公开(公告)号：WO2016036604A1

公开(公告)日：2016-03-10

申请号：PCT/US2015/047512

申请日：2015-08-28

Applicant: QUALCOMM INCORPORATED

Inventor： NEJATALI, Saeed ,  CAROBOLANTE, Francesco ,  TSENG, Ryan ,  CHI, Mei-Li ,  JEONG, Seong, Heon

IPC: H02J7/02 ,  H02J5/00

CPC classification number: H02J5/005 ,  H01F27/365 ,  H01F38/14 ,  H02J7/0044 ,  H02J7/025 ,  H02J50/12

Abstract: A uniform magnetic field may provide better performance in wireless power transmitters due to smaller impedance variations in an output of a power amplifier of a wireless power transmitter and also allow for wireless power transmitter pads to be thinner. One aspect of the disclosure provides a device for wireless power transfer. The device comprises a substantially planar transmit antenna that is configured to generate a magnetic field. The device also comprises a pad having a charging surface. At least a portion of the transmit antenna is disposed in the pad. The device also comprises a ferromagnetic material having a shape and a position relative to the transmit antenna. At least one of the shape or position of the ferromagnetic material, or a combination thereof, is selected to modify a distribution of the magnetic field at the charging surface.

Abstract translation: 由于无线电力发射机的功率放大器的输出端的阻抗变化较小，无线功率发射器的均匀磁场可以提供更好的性能，并且还允许无线功率发射器焊盘更薄。 本公开的一个方面提供了一种用于无线电力传送的装置。 该装置包括被配置为产生磁场的基本上平面的发射天线。 该装置还包括具有充电表面的垫。 发射天线的至少一部分设置在垫中。 该装置还包括具有相对于发射天线的形状和位置的铁磁材料。 选择铁磁材料的形状或位置中的至少一个或其组合来修改充电表面处的磁场分布。

公开(公告)号：WO2015026543A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/050384

申请日：2014-08-08

Applicant: QUALCOMM INCORPORATED

Inventor： WHITE, II, Mark David ,  KALLAL, Edward Kenneth ,  TSENG, Ryan ,  MAALOUF, Joseph Najib

IPC: H02J5/00 ,  G01V3/12 ,  H02J7/02

CPC classification number: H02J50/12 ,  G01R21/01 ,  G01R29/0814 ,  G01V3/12 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/007 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0075

Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wireless transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to determine a first and second power difference between a first and second power measurement and the second and a third power measurement of the power level provided by the wireless power transmitter at a first, second, and third sample time, respectively. The controller is further configured to determine a transmitter power difference between the first power difference and the second power difference. The controller is further configured to determine an absence or a presence of an object that affects consumption of power transmitted by the wireless power transmitter based at least on the transmitter power difference Δ_T.

Abstract translation: 描述了用于丢失功率检测的装置和方法。 在一个实施方式中，一种用于无线传送电力的装置包括：无线电力发射机，被配置为以足以对可计费装置供电或充电的功率电平无线地发射功率。 该装置还包括一个控制器，被配置为在第一，第二和第三采样时间确定第一和第二功率测量之间的第一和第二功率差以及由无线功率发射器提供的功率电平的第二和第三功率测量 ， 分别。 控制器还被配置为确定第一功率差和第二功率差之间的发射机功率差。 所述控制器还被配置为至少基于所述发射机功率差D D T _T来确定影响由所述无线功率发射机发射的功率的消耗的对象的不存在或不存在。

公开(公告)号：WO2015026531A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/050077

申请日：2014-08-07

Applicant: QUALCOMM INCORPORATED

Inventor： WHITE, II, Mark David ,  KALLAL, Edward Kenneth ,  TSENG, Ryan

IPC: H02J5/00 ,  G01V3/12 ,  H02J7/02 ,  H04B5/00

CPC classification number: H02J50/12 ,  G01R21/01 ,  G01R29/0814 ,  G01V3/12 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/007 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0075

Abstract: An apparatus and method for lost power detection are described. In one implementation, an apparatus for wirelessly transferring power comprises a wireless power transmitter configured to wirelessly transmit power at a first power level sufficient to power or charge a chargeable device. The apparatus further comprises a controller configured to obtain a first power measurement of the first power level. The controller is further configured to determine a first adjusted power measurement of the first power measurement based on one or more tolerance values of the wireless power transmitter. The controller is further configured to determine a second adjusted power measurement of a second power measurement of a second power level received by the chargeable device based on one or more tolerance values of the chargeable device. The controller is further configured to determine if a power difference between the first and second adjusted power measurements exceeds a threshold value.

Abstract translation: 描述了用于丢失功率检测的装置和方法。 在一个实施方式中，一种用于无线传输功率的装置包括无线电力发射机，被配置为以足以对可计费装置供电或充电的第一功率电平无线地发射功率。 该装置还包括被配置为获得第一功率电平的第一功率测量的控制器。 控制器还被配置为基于无线电力发射机的一个或多个公差值来确定第一功率测量的第一调整功率测量。 控制器还被配置为基于可计费装置的一个或多个公差值来确定由可计费装置接收的第二功率电平的第二功率测量的第二调整功率测量。 控制器还被配置为确定第一和第二调整功率测量之间的功率差是否超过阈值。