公开(公告)号：US10020683B2

公开(公告)日：2018-07-10

申请号：US14521045

申请日：2014-10-22

Applicant: QUALCOMM Incorporated

Inventor： Francesco Carobolante ,  Sreenivas Kasturi ,  Seong Heon Jeong

IPC: H02J5/00 ,  H02J7/02 ,  H01F38/14 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J50/90 ,  H02J17/00 ,  H04B5/00

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087

Abstract: Systems, methods and apparatus are disclosed for a dual mode wireless power receiver. In accordance with on aspect, an apparatus for receiving wireless power is provided. The apparatus includes a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency. The apparatus further includes a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency. The second coil is positioned to enclose the first coil. A first coupling factor between the first coil and a coil of the first transmitter is higher than a second coupling factor between the second coil and a coil of the second transmitter when the first and second coils are positioned within respective charging regions of the first and second transmitters.

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：US20140071571A1

公开(公告)日：2014-03-13

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

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。 所述功率控制电路可以衰减所述发射天线和所述发射电路，使得所接收的电磁场损坏发射天线或发射电路抑制之间的电耦合。

公开(公告)号：US20150115727A1

公开(公告)日：2015-04-30

申请号：US14521045

申请日：2014-10-22

Applicant: QUALCOMM Incorporated

Inventor： Francesco Carobolante ,  Sreenivas Kasturi ,  Seong Heon Jeong

IPC: H02J5/00 ,  H02J7/02 ,  H01F38/14

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087

Abstract: Systems, methods and apparatus are disclosed for a dual mode wireless power receiver. In accordance with on aspect, an apparatus for receiving wireless power is provided. The apparatus includes a first coil configured to wirelessly receive power from a first transmitter configured to generate a first alternating magnetic field having a first frequency. The apparatus further includes a second coil configured to wirelessly receive power from a second transmitter configured to generate a second alternating magnetic field having a second frequency higher than the first frequency. The second coil is positioned to enclose the first coil. A first coupling factor between the first coil and a coil of the first transmitter is higher than a second coupling factor between the second coil and a coil of the second transmitter when the first and second coils are positioned within respective charging regions of the first and second transmitters.

Abstract translation: 公开了用于双模无线电力接收器的系统，方法和装置。 根据一方面，提供了一种用于接收无线电力的装置。 该装置包括：第一线圈，被配置为从配置成产生具有第一频率的第一交变磁场的第一发射机无线地接收功率。 该装置还包括配置成从第二发射机无线地接收功率的第二线圈，其配置成产生具有高于第一频率的第二频率的第二交变磁场。 第二线圈定位成包围第一线圈。 当第一和第二线圈位于第一和第二线圈的相应的充电区域内时，第一线圈和第一发射器的线圈之间的第一耦合因子高于第二线圈和第二发射器的线圈之间的第二耦合因子 发射机。