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1. 发明授权

US09929601B2 Apparatus and method for lost power detection 有权
公开(公告)号：US09929601B2
公开(公告)日：2018-03-27
申请号：US14335732
申请日：2014-07-18
申请人： QUALCOMM Incorporated
发明人： Mark D. White, II , Edward Kenneth Kallal , Ryan Tseng
IPC分类号： H02J50/12 , H02J50/80 , H02J50/40 , H02J5/00 , G01R29/08 , H02J7/02 , G01R21/01 , G01V3/12 , H04B5/00 , H02J7/00
CPC分类号： H02J50/12 , G01R21/01 , G01R29/0814 , G01V3/12 , H02J5/005 , H02J7/0052 , H02J7/007 , H02J7/025 , H02J50/40 , H02J50/80 , H04B5/0037 , H04B5/0075
摘要： 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.

2. 发明授权

US09614376B2 Systems, apparatus, and methods for quantifying power losses due to induction heating in wireless power receivers 有权
公开(公告)号：US09614376B2
公开(公告)日：2017-04-04
申请号：US14464550
申请日：2014-08-20
申请人： QUALCOMM Incorporated
发明人： Edward Kenneth Kallal , Mark White, II , Ryan Tseng
IPC分类号： H01F27/42 , H02J5/00 , G01R29/08 , H02J7/02 , G01R21/01 , G01V3/12 , H04B5/00 , H02J7/00
CPC分类号： H02J50/12 , G01R21/01 , G01R29/0814 , G01V3/12 , H02J5/005 , H02J7/0052 , H02J7/007 , H02J7/025 , H02J50/40 , H02J50/80 , H04B5/0037 , H04B5/0075
摘要： 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.

3. 发明申请

US20170126066A1 SYSTEMS AND METHODS FOR LIMITING VOLTAGE IN WIRELESS POWER RECEIVERS 审中-公开
公开(公告)号：US20170126066A1
公开(公告)日：2017-05-04
申请号：US15261496
申请日：2016-09-09
申请人： QUALCOMM INCORPORATED
发明人： William H. Von Novak, III , Joseph L. Archambault , Adam Jason Wood , Edward Kenneth Kallal , Ryan Tseng , Gabriel Isaac Mayo
IPC分类号： H02J50/12 , H02J50/90 , H02J50/40 , H02J50/80 , H02J7/02 , H02J50/20
CPC分类号： H02J50/12 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/20 , H02J50/40 , H02J50/80 , H02J50/90 , H04B5/0037
摘要： 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.

4. 发明授权

US09130369B2 Wireless power overvoltage protection circuit with reduced power dissipation 有权
标题翻译：无线电源过压保护电路，功耗降低
公开(公告)号：US09130369B2
公开(公告)日：2015-09-08
申请号：US13797674
申请日：2013-03-12
申请人： QUALCOMM Incorporated
发明人： Edward Kenneth Kallal , Pavel Monat , Ryan Tseng
IPC分类号： H02H9/00 , H02H3/20 , H02J7/00 , H02J7/02 , H02J5/00 , H02H9/04
CPC分类号： H02H3/20 , H02H9/04 , H02J5/005 , H02J7/0029 , H02J7/025 , H02J50/27
摘要： Systems, methods, and apparatus for overvoltage protection in a wireless power receiver are disclosed. One aspect of the disclosure is a wireless power receiver apparatus. The apparatus includes an antenna circuit configured to wirelessly receive power, from a transmitter, at a level sufficient to power or charge a load, wherein the antenna circuit is electrically connected to an overvoltage protection circuit that is electrically connected between the antenna circuit and the load. The apparatus also includes a matching circuit electrically connected to the antenna circuit and a switching element electrically connected to the matching circuit. At least one of the matching circuit or the switching element is configured to control an amount of the received power flowing into the overvoltage protection circuit.
摘要翻译：公开了一种用于无线电力接收器中的过电压保护的系统，方法和装置。本公开的一个方面是一种无线电力接收装置。该装置包括：天线电路，被配置为从发射机以足以对负载供电或充电的电平无线地接收电力，其中天线电路电连接到电连接在天线电路和负载之间的过电压保护电路。该装置还包括电连接到天线电路的匹配电路和电连接到匹配电路的开关元件。匹配电路或开关元件中的至少一个被配置为控制流入过电压保护电路的接收功率的量。

5. 发明授权

US10128688B2 Systems and methods for limiting voltage in wireless power receivers 有权
公开(公告)号：US10128688B2
公开(公告)日：2018-11-13
申请号：US15261496
申请日：2016-09-09
申请人： QUALCOMM INCORPORATED
发明人： William H. Von Novak, III , Joseph L. Archambault , Adam Jason Wood , Edward Kenneth Kallal , Ryan Tseng , Gabriel Isaac Mayo
IPC分类号： H01F37/00 , H02J50/12 , H02J50/80 , H01F38/14 , H04B5/00 , H02J5/00 , H02J7/02 , H02J50/90 , H02J50/20 , H02J50/40
摘要： 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.

6. 发明申请

US20160285280A1 AUXILIARY RECEIVER COIL TO ADJUST RECEIVER VOLTAGE AND REACTANCE 有权
标题翻译：辅助接收机线圈调整接收器电压和反应
公开(公告)号：US20160285280A1
公开(公告)日：2016-09-29
申请号：US14671627
申请日：2015-03-27
申请人： QUALCOMM Incorporated
发明人： Edward Kenneth Kallal , William Henry Von Novak, III
IPC分类号： H02J5/00 , H02J7/02 , H01F38/14
CPC分类号： H02J5/005 , H01F38/14 , H02J7/025 , H02J50/10
摘要： In a wireless charging system, a receiver device includes a second coil that performs a reactance shift. The reactance shift may be used to conform the device reactance to a reactance range, or to adjust a rectified voltage of the wireless power provided to the device electronics. The reactance shift differs from resonance matching in that the power transfer efficiency may be decreased.
摘要翻译：在无线充电系统中，接收机装置包括执行电抗移位的第二线圈。电抗移位可用于使器件电抗符合电抗范围，或者调整提供给器件电子设备的无线电源的整流电压。电抗偏移不同于谐振匹配，因为功率传输效率可能降低。

7. 发明申请

US20150054453A1 APPARATUS AND METHOD FOR NON-COMPLIANT OBJECT DETECTION 有权
标题翻译：不符合目标检测的装置和方法
公开(公告)号：US20150054453A1
公开(公告)日：2015-02-26
申请号：US14335655
申请日：2014-07-18
申请人： QUALCOMM Incorporated
发明人： Mark D. WHITE, II , Edward Kenneth Kallal , Ryan Tseng , Joseph N. Maalouf
IPC分类号： G01R29/08 , H02J7/02
CPC分类号： H02J50/12 , G01R21/01 , G01R29/0814 , G01V3/12 , H02J5/005 , H02J7/0052 , H02J7/007 , H02J7/025 , H02J50/40 , H02J50/80 , H04B5/0037 , H04B5/0075
摘要： 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.
摘要翻译：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设备包括：无线电力发射机，被配置为以足以对可计费设备供电或充电的功率电平无线发射功率。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。

8. 发明授权

US10224753B2 Wireless power transfer using a field altering circuit 有权
公开(公告)号：US10224753B2
公开(公告)日：2019-03-05
申请号：US15075344
申请日：2016-03-21
申请人： QUALCOMM Incorporated
发明人： William Henry Von Novak, III , Edward Kenneth Kallal , Cody Burton Wheeland , Seong Heon Jeong
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/12 , H02J50/80 , H02J7/02 , B60L11/18 , H02J5/00
摘要： A wireless power transmitter includes a power transmit coil configured to generate a magnetic field for wirelessly coupling charging power to one or more receiver devices, the magnetic field having a magnetic field distribution over an area defining a charging region, a circuit configured to alter the magnetic field generated by the power transmit coil to alter the magnetic field distribution, and a controller operably coupled to the circuit, the controller configured to control the circuit to alter the magnetic field distribution responsive to a detected characteristic of the one or more receiver devices.

9. 发明申请

US20160352147A1 WIRELESS POWER TRANSFER USING A FIELD ALTERING CIRCUIT 审中-公开
标题翻译：使用现场改造电路进行无线电力传输
公开(公告)号：US20160352147A1
公开(公告)日：2016-12-01
申请号：US15075344
申请日：2016-03-21
申请人： QUALCOMM Incorporated
发明人： William Henry Von Novak, III , Edward Kenneth Kallal , Cody Burton Wheeland , Seong Heon Jeong
IPC分类号： H02J50/12 , H02J7/02 , H02J50/80
CPC分类号： H02J50/12 , B60L11/182 , H02J5/005 , H02J7/025 , H02J50/80 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/14
摘要： A wireless power transmitter includes a power transmit coil configured to generate a magnetic field for wirelessly coupling charging power to one or more receiver devices, the magnetic field having a magnetic field distribution over an area defining a charging region, a circuit configured to alter the magnetic field generated by the power transmit coil to alter the magnetic field distribution, and a controller operably coupled to the circuit, the controller configured to control the circuit to alter the magnetic field distribution responsive to a detected characteristic of the one or more receiver devices.
摘要翻译：无线电力发射机包括被配置为产生用于将充电功率无线耦合到一个或多个接收机设备的磁场的功率发射线圈，所述磁场在限定充电区域的区域上具有磁场分布，电路被配置为改变磁由所述功率发射线圈产生的磁场以改变所述磁场分布;以及控制器，其可操作地耦合到所述电路，所述控制器被配置为响应于所述一个或多个接收器设备的检测到的特性来控制所述电路来改变所述磁场分布。

10. 发明申请

US20140091634A1 SYSTEMS AND METHODS FOR DETECTING WIRELESS CHARGING TRANSMIT CHARACTERISTICS 有权
标题翻译：用于检测无线充电发送特性的系统和方法
公开(公告)号：US20140091634A1
公开(公告)日：2014-04-03
申请号：US13801981
申请日：2013-03-13
申请人： QUALCOMM INCORPORATED
发明人： Gabriel Isaac Mayo , Ryan Tseng , Edward Kenneth Kallal
IPC分类号： H02J17/00
CPC分类号： H02J50/12 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/60 , H02J50/90 , H04B5/0037 , H04B5/0075
摘要： 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.
摘要翻译：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。

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