公开(公告)号：US20170018946A1

公开(公告)日：2017-01-19

申请号：US14798040

申请日：2015-07-13

Applicant: NXP B.V.

Inventor： Klaas Brink ,  Rene Geraets ,  Oswald Moonen

IPC: H02J7/02 ,  H02J7/04

CPC classification number: H02J7/025 ,  H02J5/005 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081

Abstract: A power supply circuit can be configured to generate a supply voltage that provides power to the apparatus. A signal generation circuit can be configured to generate a radio frequency (RF) charging signal. An amplification circuit can be configured to amplify the RF charging signal using the supply voltage and to present the amplified charging signal to a power transmitting coil for transmission of wireless power to a remote device. A communication circuit can be configured to detect amplitude variations in the RF charging signal; detect variations in a voltage level of the supply voltage; adjust the detected amplitude variations in the RF charging signal to compensate for detected variations in a voltage level; and decode data represented by the amplitude variations in the RF charging signal based upon the adjusted amplitude variations.

Abstract translation: 电源电路可以被配置为产生向设备提供电力的电源电压。 信号发生电路可以被配置为产生射频（RF）充电信号。 放大电路可以被配置为使用电源电压来放大RF充电信号，并且将放大的充电信号呈现给功率发送线圈，以将无线电力传输到远程设备。 通信电路可以被配置为检测RF充电信号中的幅度变化; 检测电源电压的电压电平的变化; 调整检测到的RF充电信号中的幅度变化，以补偿检测到的电压电平的变化; 并且基于调整的幅度变化来解码由RF充电信号中的幅度变化表示的数据。

公开(公告)号：US09948127B2

公开(公告)日：2018-04-17

申请号：US14798040

申请日：2015-07-13

Applicant: NXP B.V.

Inventor： Klaas Brink ,  Rene Geraets ,  Oswald Moonen

IPC: H04B5/00 ,  H04B17/00 ,  H02J5/00 ,  H02J17/00 ,  H02J7/02 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80

CPC classification number: H02J7/025 ,  H02J5/005 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081

Abstract: A power supply circuit can be configured to generate a supply voltage that provides power to the apparatus. A signal generation circuit can be configured to generate a radio frequency (RF) charging signal. An amplification circuit can be configured to amplify the RF charging signal using the supply voltage and to present the amplified charging signal to a power transmitting coil for transmission of wireless power to a remote device. A communication circuit can be configured to detect amplitude variations in the RF charging signal; detect variations in a voltage level of the supply voltage; adjust the detected amplitude variations in the RF charging signal to compensate for detected variations in a voltage level; and decode data represented by the amplitude variations in the RF charging signal based upon the adjusted amplitude variations.

公开(公告)号：US10097162B2

公开(公告)日：2018-10-09

申请号：US14308148

申请日：2014-06-18

Applicant: NXP B.V.

Inventor： Patrick Niessen ,  Rene Geraets

IPC: H03H11/04 ,  H02J5/00 ,  H01F38/14 ,  H02J7/02 ,  H03H7/01 ,  H02J50/40 ,  H02J50/70 ,  H04B5/00 ,  H02J50/10 ,  H02J50/80

Abstract: Embodiments of an apparatus are disclosed. In an embodiment, a power receiver unit is disclosed. The power receiver unit includes a power pick-up unit, a communication modulator, and a filter. The power pick-up unit receives a wireless power signal. The communication modulator applies a modulation to the received wireless power signal. The filter suppresses a load signal from a load of the wireless charge receiver to prevent interference with the modulation.

公开(公告)号：US20160309418A1

公开(公告)日：2016-10-20

申请号：US14688886

申请日：2015-04-16

Applicant: NXP B.V.

Inventor： Aliaksei Vladimirovich Sedzin ,  Klaas Brink ,  Rene Geraets ,  Patrick Niessen ,  Oswald Moonen

IPC: H04W52/24 ,  H02J7/02 ,  H02J17/00 ,  H04B5/00 ,  H02J5/00

CPC classification number: H04W52/243 ,  H02J50/10 ,  H02J50/60 ,  H04B5/0037 ,  H04B5/0087

Abstract: A method for performing foreign object detection in an inductive wireless power transfer system is disclosed. In the embodiment, the method involves obtaining measurements from a base station of a wireless power transfer system during charging and determining transmitter energy loss in a power transmitter, Ptxloss, using the obtained measurements, wherein the transmitter energy loss, Ptxloss, is a function of at least Vcap and PTx, wherein Vcap is proportional to the voltage amplitude across the capacitor of an LC tank circuit in a power transmitter and PTx is the total power supplied to the power transmitter. The method also involves detecting the presence of a foreign object in response to the estimated transmitter energy loss.

Abstract translation: 公开了一种用于在感应式无线电力传送系统中执行异物检测的方法。 在该实施例中，该方法包括在充电期间从无线功率传输系统的基站获得测量值，并使用所获得的测量结果确定发射机能量损失Ptxloss，其中发射机能量损失Ptxloss是 至少Vcap和PTx，其中Vcap与功率发射器中的LC槽电路的电容器两端的电压幅度成比例，并且PTx是提供给功率发射器的总功率。 该方法还涉及响应于估计的发射机能量损失检测外来物体的存在。

公开(公告)号：US09474031B1

公开(公告)日：2016-10-18

申请号：US14688886

申请日：2015-04-16

Applicant: NXP B.V.

Inventor： Aliaksei Vladimirovich Sedzin ,  Klaas Brink ,  Rene Geraets ,  Patrick Niessen ,  Oswald Moonen

IPC: H04B5/00 ,  H04W52/24 ,  H02J5/00 ,  H02J17/00 ,  H02J7/02

CPC classification number: H04W52/243 ,  H02J50/10 ,  H02J50/60 ,  H04B5/0037 ,  H04B5/0087

Abstract: A method for performing foreign object detection in an inductive wireless power transfer system is disclosed. In the embodiment, the method involves obtaining measurements from a base station of a wireless power transfer system during charging and determining transmitter energy loss in a power transmitter, Ptxloss, using the obtained measurements, wherein the transmitter energy loss, Ptxloss, is a function of at least Vcap and PTx, wherein Vcap is proportional to the voltage amplitude across the capacitor of an LC tank circuit in a power transmitter and PTx is the total power supplied to the power transmitter. The method also involves detecting the presence of a foreign object in response to the estimated transmitter energy loss.

Abstract translation: 公开了一种用于在感应式无线电力传送系统中执行异物检测的方法。 在该实施例中，该方法包括在充电期间从无线功率传输系统的基站获得测量值，并使用所获得的测量结果确定发射机能量损失Ptxloss，其中发射机能量损失Ptxloss是 至少Vcap和PTx，其中Vcap与功率发射器中的LC槽电路的电容器两端的电压幅度成比例，并且PTx是提供给功率发射器的总功率。 该方法还涉及响应于估计的发射机能量损失检测外来物体的存在。

公开(公告)号：US20150372662A1

公开(公告)日：2015-12-24

申请号：US14308148

申请日：2014-06-18

Applicant: NXP B.V.

Inventor： Patrick Niessen ,  Rene Geraets

IPC: H03H11/04 ,  H03H7/01 ,  H02J7/02 ,  H01F38/14 ,  H02J5/00

CPC classification number: H03H11/04 ,  H01F38/14 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H03H7/0138 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0075

Abstract: Embodiments of an apparatus are disclosed. In an embodiment, a power receiver unit is disclosed. The power receiver unit includes a power pick-up unit, a communication modulator, and a filter. The power pick-up unit receives a wireless power signal. The communication modulator applies a modulation to the received wireless power signal. The filter suppresses a load signal from a load of the wireless charge receiver to prevent interference with the modulation.

Abstract translation: 公开了一种装置的实施例。 在一个实施例中，公开了一种功率接收器单元。 功率接收器单元包括功率拾取单元，通信调制器和滤波器。 动力拾取单元接收无线电力信号。 通信调制器对所接收的无线功率信号进行调制。 滤波器抑制来自无线电荷接收器的负载的负载信号，以防止对调制的干扰。