公开(公告)号：US20140063666A1

公开(公告)日：2014-03-06

申请号：US13797674

申请日：2013-03-12

Applicant: QUALCOMM INCORPORATED

Inventor： Edward Kenneth Kallal ,  Pavel Monat ,  Ryan Tseng

IPC: H02H3/20

CPC classification number: H02H3/20 ,  H02H9/04 ,  H02J5/005 ,  H02J7/0029 ,  H02J7/025 ,  H02J50/27

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20170126066A1

公开(公告)日：2017-05-04

申请号：US15261496

申请日：2016-09-09

Applicant: QUALCOMM INCORPORATED

Inventor： William H. Von Novak, III ,  Joseph L. Archambault ,  Adam Jason Wood ,  Edward Kenneth Kallal ,  Ryan Tseng ,  Gabriel Isaac Mayo

IPC: H02J50/12 ,  H02J50/90 ,  H02J50/40 ,  H02J50/80 ,  H02J7/02 ,  H02J50/20

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.

公开(公告)号：US09391442B2

公开(公告)日：2016-07-12

申请号：US13837638

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Ryan Tseng ,  Sreenivas Kasturi ,  Edward Kenneth Kallal, III ,  Milorad Radovic ,  William H. Von Novak, III

IPC: H02H3/20 ,  H02J7/02 ,  H04B5/00 ,  H02J5/00 ,  H04B1/04 ,  H04B17/10

CPC classification number: H02H3/20 ,  H02J5/005 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B1/0466 ,  H04B5/0037 ,  H04B5/0093 ,  H04B17/103

Abstract: Aspects of a protection circuit and method are disclosed. A transmit circuit generates a power transmit signal for powering the transmit antenna to generate a wireless field sufficient for wirelessly charging a device. A detection circuit senses a strength of an electromagnetic field received by the transmit antenna and further configured to generate an sense signal indicating the strength of the electromagnetic field received by the transmit antenna. A power control circuit controls a switch based at least partly on the sense signal. The power control circuit can attenuate an electrical coupling between the transmit antenna and the transmit circuit such that the received electromagnetic field is inhibited from damaging the transmit antenna or the transmit circuit.

Abstract translation: 公开了保护电路和方法的方面。 发射电路产生用于为发射天线供电的功率发射信号，以产生足以对装置进行无线充电的无线电场。 检测电路感测由发射天线接收的电磁场的强度，并进一步被配置为产生指示由发射天线接收的电磁场的强度的感测信号。 功率控制电路至少部分地基于感测信号来控制开关。 功率控制电路可以衰减发射天线和发射电路之间的电耦合，使得接收的电磁场被禁止损坏发射天线或发射电路。

公开(公告)号：US20150357832A1

公开(公告)日：2015-12-10

申请号：US14829135

申请日：2015-08-18

Applicant: QUALCOMM INCORPORATED

Inventor： Ryan Tseng

IPC: H02J5/00 ,  H02J17/00

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：US09130369B2

公开(公告)日：2015-09-08

申请号：US13797674

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Edward Kenneth Kallal ,  Pavel Monat ,  Ryan Tseng

IPC: H02H9/00 ,  H02H3/20 ,  H02J7/00 ,  H02J7/02 ,  H02J5/00 ,  H02H9/04

CPC classification number: H02H3/20 ,  H02H9/04 ,  H02J5/005 ,  H02J7/0029 ,  H02J7/025 ,  H02J50/27

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130099585A1

公开(公告)日：2013-04-25

申请号：US13622204

申请日：2012-09-18

Applicant: Qualcomm Incorporated

Inventor： William H. Von Novak ,  Joseph L. Archambault ,  Adam J. Wood ,  Edward Kallal ,  Ryan Tseng ,  Gabriel Isaac Mayo

IPC: H01F38/14

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，该信号向发射机发出接收电压达到第一阈值。