公开(公告)号：US09461481B2

公开(公告)日：2016-10-04

申请号：US14829135

申请日：2015-08-18

Applicant: QUALCOMM Incorporated

Inventor： Ryan Tseng

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

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0081

Abstract: Systems and methods for feedback control of output power in a wireless power transmitter are disclosed. According to one aspect, one of a voltage level at an input of a wireless power transmit coil and a level of current passing through the wireless power transmit coil are sensed. The wireless power transmitter includes a controller configured to adjust an electrical characteristic of the wireless power transmitter to maintain at least one of the level of current and the voltage level at a constant level.

Abstract translation: 公开了用于无线电力发射机中的输出功率的反馈控制的系统和方法。 根据一个方面，检测无线电力发射线圈的输入端的电压电平和通过无线电力发射线圈的电流电平之一。 无线电力发射机包括控制器，该控制器被配置为调整无线功率发射器的电气特性以将电流电平和电压电平中的至少一个保持在恒定电平。

公开(公告)号：US09071284B2

公开(公告)日：2015-06-30

申请号：US13646553

申请日：2012-10-05

Applicant: QUALCOMM Incorporated

Inventor： Cody B. Wheeland ,  Ryan Tseng ,  William H Von Novak

IPC: G01R27/02 ,  H02J17/00 ,  H04B5/00

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/50 ,  H02J50/60 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  H03F1/565 ,  H03F3/2176

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：US20140091634A1

公开(公告)日：2014-04-03

申请号：US13801981

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Gabriel Isaac Mayo ,  Ryan Tseng ,  Edward Kenneth Kallal

IPC: H02J17/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075

Abstract: This disclosure provides systems, methods and apparatus for detecting wireless charging transmit characteristics. One aspect of the disclosure provides a method of detecting a transmit characteristic in a wireless power transmission device. The device includes a series element electrically coupled to a transmit coil. The method includes determining real and imaginary components of a first voltage at a first terminal of the series element. The method further includes determining real and imaginary components of a second voltage at a second terminal of the series element. The method further includes determining real and imaginary components of a current through the series element, based on the determined first and second voltages. The method further includes determining transmit characteristics such as nodal voltages, currents, power and impedances based on determined voltages and currents. The method further includes adjusting a characteristic of a wireless power transmission based on the determined transmit characteristics.

Abstract translation: 本公开提供了用于检测无线充电传输特性的系统，方法和装置。 本公开的一个方面提供一种检测无线电力传输装置中的发射特性的方法。 该装置包括电耦合到发射线圈的串联元件。 该方法包括确定串联元件的第一端处的第一电压的实分量和虚分量。 该方法还包括确定串联元件的第二端处的第二电压的实分量和虚分量。 该方法还包括基于确定的第一和第二电压来确定通过串联元件的电流的实部和虚部。 该方法还包括基于确定的电压和电流来确定传输特性，例如节点电压，电流，功率和阻抗。 该方法还包括基于确定的传输特性来调整无线功率传输的特性。

公开(公告)号：US20130214610A1

公开(公告)日：2013-08-22

申请号：US13659657

申请日：2012-10-24

Applicant: QUALCOMM Incorporated

Inventor： Ryan Tseng

IPC: H01F38/14 ,  H02J17/00

CPC classification number: H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0075

Abstract: Systems, methods, and apparatus for amplifying a voltage in wireless power transmitters are disclosed. In one aspect, the transmitter comprises a first circuit configured to generate a first signal. The first signal comprises a non-inverted output. The transmitter further comprises a second circuit configured to generate a second signal in phase with the first signal. The second signal comprises an inverted output with respect to the non-inverted output. The first circuit and the second circuit are further configured to drive a load.

Abstract translation: 公开了用于放大无线电力发射机中的电压的系统，方法和装置。 在一个方面，发射机包括被配置为产生第一信号的第一电路。 第一信号包括非反相输出。 发射机还包括被配置为产生与第一信号同相的第二信号的第二电路。 第二信号包括相对于非反相输出的反相输出。 第一电路和第二电路进一步配置成驱动负载。

公开(公告)号：US20130099807A1

公开(公告)日：2013-04-25

申请号：US13646553

申请日：2012-10-05

Applicant: QUALCOMM Incorporated

Inventor： Cody B. Wheeland ,  Ryan Tseng ,  William H. Von Novak

IPC: G01R27/02

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/50 ,  H02J50/60 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  H03F1/565 ,  H03F3/2176

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：US09929601B2

公开(公告)日：2018-03-27

申请号：US14335732

申请日：2014-07-18

Applicant: QUALCOMM Incorporated

Inventor： Mark D. White, II ,  Edward Kenneth Kallal ,  Ryan Tseng

IPC: H02J50/12 ,  H02J50/80 ,  H02J50/40 ,  H02J5/00 ,  G01R29/08 ,  H02J7/02 ,  G01R21/01 ,  G01V3/12 ,  H04B5/00 ,  H02J7/00

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.

公开(公告)号：US09614376B2

公开(公告)日：2017-04-04

申请号：US14464550

申请日：2014-08-20

Applicant: QUALCOMM Incorporated

Inventor： Edward Kenneth Kallal ,  Mark White, II ,  Ryan Tseng

IPC: H01F27/42 ,  H02J5/00 ,  G01R29/08 ,  H02J7/02 ,  G01R21/01 ,  G01V3/12 ,  H04B5/00 ,  H02J7/00

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. In one aspect, an apparatus for wireless power transfer comprises a power transfer component configured to transmit wireless power to a wireless power receiver at a power level sufficient to charge or power a load. The apparatus further comprises a communications receiver configured to receive a message from the wireless power receiver, the message comprising a group identifier. The apparatus further comprises a controller circuit operationally coupled to the power transfer component and the communications receiver 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 that are members of a group associated with the group identifier.

公开(公告)号：US09369183B2

公开(公告)日：2016-06-14

申请号：US14278074

申请日：2014-05-15

Applicant: QUALCOMM Incorporated

Inventor： Abdolhossein Nejatali ,  Francesco Carobolante ,  Ryan Tseng

IPC: H04B5/00 ,  H04L7/033 ,  H04B17/21 ,  H04B17/11 ,  H02J7/02 ,  H02J7/00 ,  H02J5/00 ,  H02J17/00

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：US20160072296A1

公开(公告)日：2016-03-10

申请号：US14478461

申请日：2014-09-05

Applicant: QUALCOMM Incorporated

Inventor： Saeed Nejatali ,  Francesco Carobolante ,  Ryan Tseng ,  Mei-Li Chi ,  Seong Heon Jeong

IPC: H02J5/00 ,  H02J17/00

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：US20160064950A1

公开(公告)日：2016-03-03

申请号：US14846441

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Ryan Tseng

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

CPC classification number: H02J5/005 ,  A61C17/224 ,  H01F17/0006 ,  H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

Abstract: Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies. Embodiments of the invention also pertain to planar inductors having characteristics that allow the production of even magnetic field, as well as systems that incorporate such planar inductors.

Abstract translation: 本发明的实施例涉及一种用于将电力无线地传送到电子设备的方法和系统。 该系统可以利用两个线圈之间的磁耦合，以便近距离传输足够的电力来为电子设备充电。 本发明的实施例涉及可用于传送功率以传送到接收器线圈的螺旋线圈阵列。 该技术的潜在应用包括对消费电子设备（手机，笔记本电脑，PDA等）进行充电，开发用于极端环境的密封设备和较少侵入性的经皮能量传输（TET）系统。 该主题系统的各种实施例可被称为PowerPad系统。 实施例可以包括以下的一个或多个：平面电感器，PCB变压器和非常高频率的电源。 本发明的实施例还涉及具有允许产生均匀磁场的特性的平面电感器以及包含这种平面电感器的系统。