公开(公告)号：US20120267960A1

公开(公告)日：2012-10-25

申请号：US13399292

申请日：2012-02-17

Applicant: Zhen Ning Low ,  Charles Edward Wheatley, III ,  Sreenivas Kasturi

Inventor： Zhen Ning Low ,  Charles Edward Wheatley, III ,  Sreenivas Kasturi

IPC: H02J17/00

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect an apparatus configured to wirelessly provide power to a load is provided. The apparatus includes a transmit circuit including a transmit coil. The transmit circuit is configured to wirelessly provide power to the load. The transmit coil is configured to resonate at a resonant frequency. The transmit circuit has a reactance. The apparatus further includes a detection circuit configured to detect a change in the resonant frequency while providing power to the load. The apparatus further includes a tuning circuit configured to adjust the reactance based on the change.

Abstract translation: 本公开提供了用于调谐无线电力发射机的系统，方法和装置。 在一个方面，提供了一种被配置为向负载无线地提供电力的装置。 该装置包括包括发射线圈的发射电路。 发射电路被配置为向负载无线地提供电力。 发射线圈被配置为以共振频率谐振。 发射电路具有电抗。 该装置还包括检测电路，被配置为在向负载提供电力的同时检测谐振频率的变化。 该装置还包括调整电路，其被配置为基于该变化来调整电抗。

公开(公告)号：US20120242284A1

公开(公告)日：2012-09-27

申请号：US13424834

申请日：2012-03-20

Applicant: Charles Edward Wheatley, III ,  Zhen Ning Low ,  Stanley Slavko Toncich ,  Ngo Van Nguyen ,  Cody B. Wheeland

Inventor： Charles Edward Wheatley, III ,  Zhen Ning Low ,  Stanley Slavko Toncich ,  Ngo Van Nguyen ,  Cody B. Wheeland

IPC: H02J7/00 ,  H03F3/04 ,  H03F3/217 ,  H03H7/38

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40

Abstract: This disclosure provides systems, methods and apparatus for increasing the efficiency of an amplifier when driven by a variable load. In one aspect a transmitter device is provided. The transmitter device includes a driver circuit characterized by an efficiency. The driver circuit is electrically connected to a transmit circuit characterized by an impedance. The transmitter device further includes a filter circuit electrically connected to the driver circuit and configured to modify the impedance to maintain the efficiency of the driver circuit at a level that is within 20% of a maximum efficiency of the driver circuit. The impedance is characterized by a complex impedance value that is within a range defined by a real first impedance value and a second real impedance value. A ratio of the first real impedance value to the second real impedance value is at least two to one.

Abstract translation: 本公开提供了当由可变负载驱动时增加放大器的效率的系统，方法和装置。 在一个方面，提供发射机设备。 发射机装置包括以效率为特征的驱动电路。 驱动电路电连接到以阻抗为特征的发送电路。 发射机设备还包括电连接到驱动器电路并被配置为修改阻抗以将驱动器电路的效率维持在驱动器电路的最大效率的20％以内的水平的滤波器电路。 阻抗的特征在于在由实际第一阻抗值和第二实际阻抗值限定的范围内的复阻抗值。 第一实际阻抗值与第二实际阻抗值之比至少为2比1。

公开(公告)号：US10381874B2

公开(公告)日：2019-08-13

申请号：US13424834

申请日：2012-03-20

Applicant: Charles Edward Wheatley, III ,  Zhen Ning Low ,  Stanley Slavko Toncich ,  Ngo Van Nguyen ,  Cody B. Wheeland

Inventor： Charles Edward Wheatley, III ,  Zhen Ning Low ,  Stanley Slavko Toncich ,  Ngo Van Nguyen ,  Cody B. Wheeland

IPC: H01F38/14 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J7/02

Abstract: This disclosure provides systems, methods and apparatus for increasing the efficiency of an amplifier when driven by a variable load. In one aspect a transmitter device is provided. The transmitter device includes a driver circuit characterized by an efficiency. The driver circuit is electrically connected to a transmit circuit characterized by an impedance. The transmitter device further includes a filter circuit electrically connected to the driver circuit and configured to modify the impedance to maintain the efficiency of the driver circuit at a level that is within 20% of a maximum efficiency of the driver circuit. The impedance is characterized by a complex impedance value that is within a range defined by a real first impedance value and a second real impedance value. A ratio of the first real impedance value to the second real impedance value is at least two to one.

公开(公告)号：US20120223590A1

公开(公告)日：2012-09-06

申请号：US13352189

申请日：2012-01-17

Applicant: Zhen Ning Low ,  Kevin Douglas Lee ,  Charles Edward Wheatley, III

Inventor： Zhen Ning Low ,  Kevin Douglas Lee ,  Charles Edward Wheatley, III

IPC: H02J17/00

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/80 ,  H02M2001/0048 ,  Y02B70/1491

Abstract: This disclosure provides systems, methods and apparatus for managing a temperature of a wireless power receiver. In one aspect a wireless power transmitter is provided. The wireless power transmitter includes a transmit circuit including a transmit coil. The transmit circuit is configured to wirelessly transmit power to a wireless power receiver. The wireless power transmitter further includes a communication circuit configured to receive information based on a temperature measurement of the wireless power receiver. The wireless power transmitter further includes a transmit controller circuit configured to adjust an operating point of power transfer based on the information.

Abstract translation: 本公开提供了用于管理无线电力接收器的温度的系统，方法和装置。 在一个方面，提供无线电力发射机。 无线电力发射机包括包括发射线圈的发射电路。 发送电路被配置为向无线电力接收器无线地发送电力。 无线电力发射机还包括被配置为基于无线电力接收机的温度测量来接收信息的通信电路。 无线电力发射机还包括发射控制器电路，其被配置为基于该信息来调整功率传输的工作点。

公开(公告)号：US09094055B2

公开(公告)日：2015-07-28

申请号：US13399292

申请日：2012-02-17

Applicant: Zhen Ning Low ,  Charles Edward Wheatley, III ,  Sreenivas Kasturi

Inventor： Zhen Ning Low ,  Charles Edward Wheatley, III ,  Sreenivas Kasturi

IPC: H01F38/00 ,  H04B5/00 ,  H02J17/00

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect an apparatus configured to wirelessly provide power to a load is provided. The apparatus includes a transmit circuit including a transmit coil. The transmit circuit is configured to wirelessly provide power to the load. The transmit coil is configured to resonate at a resonant frequency. The transmit circuit has a reactance. The apparatus further includes a detection circuit configured to detect a change in the resonant frequency while providing power to the load. The apparatus further includes a tuning circuit configured to adjust the reactance based on the change.

Abstract translation: 本公开提供了用于调谐无线电力发射机的系统，方法和装置。 在一个方面，提供了一种被配置为向负载无线地提供电力的装置。 该装置包括包括发射线圈的发射电路。 发射电路被配置为向负载无线地提供电力。 发射线圈被配置为以共振频率谐振。 发射电路具有电抗。 该装置还包括检测电路，被配置为在向负载提供电力的同时检测谐振频率的变化。 该装置还包括调整电路，其被配置为基于该变化来调整电抗。