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公开(公告)号：US09368975B2
公开(公告)日：2016-06-14
申请号：US13835285
申请日：2013-03-15
Applicant: QUALCOMM Incorporated
Inventor： Cody B. Wheeland , Linda S. Irish , William H. Von Novak, III , Gabriel Isaac Mayo
Abstract: Systems, methods, and apparatus are provided for tuning in wireless power transfer circuits. One aspect of the disclosure provides an apparatus for tuning. The apparatus includes a field effect transistor having a gate, source, and drain, where the field effect transistor is configured to electrically engage a tuning element to an AC power path. In some embodiments, one of the source or drain contacts is at an alternating current voltage.
Abstract translation: 提供系统，方法和装置用于无线电力传输电路中的调谐。 本公开的一个方面提供了一种用于调谐的装置。 该装置包括具有栅极，源极和漏极的场效应晶体管，其中场效应晶体管被配置为将调谐元件电耦合到AC电力路径。 在一些实施例中，源极或漏极接触中的一个处于交流电压。
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公开(公告)号：US09153998B2
公开(公告)日：2015-10-06
申请号：US14094322
申请日：2013-12-02
Applicant: QUALCOMM Incorporated
Inventor： Gabriel Isaac Mayo
CPC classification number: H02J50/12 , H02J5/005 , H02J7/0052 , H02J7/025 , H02J17/00 , H02J50/40 , H04B5/0037 , H04B5/0075 , H04B5/0081
Abstract: Systems and methods for wireless power transmission are described herein. In one aspect, an apparatus for wireless power transmission comprises a first antenna array of antenna coils configured to generate a first wireless field. A second antenna array of antenna coils generates a second wireless field. The first antenna array at least partially overlaps the second antenna array. A driver circuit generates first and second drive signals for generation of the first and second wireless fields via the first and second antenna arrays, respectively. The first wireless field is orthogonal with respect to the second wireless field. The first antenna array and the driver circuit power the antenna coils of the first antenna array with alternating polarities. The second antenna array and the driver circuit power the antenna coils of the second antenna array with alternating polarities.
Abstract translation: 本文描述了用于无线电力传输的系统和方法。 一方面，一种用于无线电力传输的装置包括被配置为产生第一无线电场的天线线圈的第一天线阵列。 天线线圈的第二天线阵列产生第二无线场。 第一天线阵列至少部分地与第二天线阵列重叠。 驱动器电路分别产生用于经由第一和第二天线阵列产生第一和第二无线电场的第一和第二驱动信号。 第一无线区域相对于第二无线区域是正交的。 第一天线阵列和驱动电路为具有交替极性的第一天线阵列的天线线圈供电。 第二天线阵列和驱动电路为具有交替极性的第二天线阵列的天线线圈供电。
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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
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.
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公开(公告)号：US09484766B2
公开(公告)日：2016-11-01
申请号：US14108007
申请日：2013-12-16
Applicant: QUALCOMM Incorporated
Inventor： Cody Burton Wheeland , Xiaoyu Liu , Gabriel Isaac Mayo
CPC classification number: H02J50/12 , H02J17/00 , H04B5/0037
Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect a device configured to wirelessly provide power to a load is provided. The device includes a signal driver configured to provide power along a power path. The device further includes a first tuning circuit along the power path, configured to tune reactance at the signal driver, introducing undesired harmonic content. The device further includes a second tuning circuit along the power path, configured to tune reactance at the signal driver and to generate complementary harmonic content, at least partly canceling the harmonic generated at the first tuning circuit.
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设备。 该装置包括被配置为沿着电源路径提供电力的信号驱动器。 该装置还包括沿着功率路径的第一调谐电路，被配置为调谐信号驱动器处的电抗，引入不需要的谐波内容。 该装置还包括沿着功率路径的第二调谐电路，被配置为调谐信号驱动器处的电抗并产生互补谐波内容，至少部分地抵消在第一调谐电路处产生的谐波。
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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。
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Patent Agency Ranking
公开(公告)号：US09722448B2
公开(公告)日：2017-08-01
申请号：US14108235
申请日：2013-12-16
Applicant: QUALCOMM Incorporated
Inventor： Milorad Radovic , Gabriel Isaac Mayo
CPC classification number: H02J50/12 , H02J5/005 , H02J7/025 , H02J50/60 , H04B5/0037 , H04B5/0075 , H04B5/0093
Abstract: Aspects of a protection circuit and method are disclosed. An apparatus to transmit wireless power comprises a transmit antenna, a driver, a sensing circuit, and a control circuit. The transmit antenna generates a wireless field to charge devices. The driver powers the transmit antenna for generation of the wireless field. A power level of the wireless field is based on a power level of the driver. The sensing circuit senses wireless power received at the transmit antenna and generates a monitoring signal based on the sensed wireless power received at the transmit antenna. The control circuit controls the power level or inhibits the driver from powering the transmit antenna when the monitoring signal indicates that the transmit antenna is receiving wireless power from a foreign antenna.
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7.发明申请公开(公告)号：US20170149282A1
公开(公告)日：2017-05-25
申请号：US15182650
申请日：2016-06-15
Applicant: QUALCOMM INCORPORATED
Inventor： Paolo Menegoli , Gabriel Isaac Mayo
Abstract: An apparatus for wirelessly receiving power via a wireless field generated by a transmitter includes a resonator configured to generate electrical current to power or charge a load based on a voltage induced in the resonator in response to the wireless field, a controller configured to receive a synchronization timing reference signal based on a derivative of the voltage induced in the resonator, the controller configured to generate a rectifier control signal based on the synchronization timing reference signal, and a synchronous rectifier configured to switch responsive to the rectifier control signal.
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公开(公告)号：US20170084991A1
公开(公告)日：2017-03-23
申请号：US14856631
申请日：2015-09-17
Applicant: QUALCOMM Incorporated
Inventor： Gabriel Isaac Mayo
CPC classification number: H01Q1/526 , H01F27/2871 , H01F27/362 , H01F38/14 , H01Q1/48 , H01Q7/00 , H02J50/10 , H02J50/70
Abstract: An antenna structure for wireless power transfer includes a ground plane configured to prevent passage of an electric field, at least one coil configured as an antenna and located over the ground plane, the ground plane contiguous over the coil, an insulator located between the ground plane and the at least one coil, and a shield adjacent the coil, the shield comprising a non-contiguous structure, the shield configured to allow the passage of a magnetic field to the at least one coil.
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9.发明授权公开(公告)号：US09190876B2
公开(公告)日：2015-11-17
申请号：US13801981
申请日：2013-03-13
Applicant: QUALCOMM Incorporated
Inventor： Gabriel Isaac Mayo , Ryan Tseng , Edward Kenneth Kallal
CPC classification number: H02J50/12 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/60 , H02J50/90 , H04B5/0037 , H04B5/0075
Abstract: 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.
Abstract translation: 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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公开(公告)号：US09960608B2
公开(公告)日：2018-05-01
申请号：US15061759
申请日：2016-03-04
Applicant: QUALCOMM Incorporated
Inventor： Linda Stacey Irish , Francesco Carobolante , Gabriel Isaac Mayo
IPC: H01H19/64 , H02J5/00 , H02J50/12 , H02J7/02 , H02M1/12 , H02M7/217 , H02M7/219 , H02J50/10 , H02M7/483 , H02M1/00
CPC classification number: H02J5/005 , H02J7/025 , H02J50/10 , H02J50/12 , H02M1/12 , H02M7/217 , H02M7/219 , H02M7/483 , H02M2001/0058 , Y02B70/1491
Abstract: A multi-level rectifier is presented that is suitable for use at high frequencies, including into MHz range such as in the 6.78 MHz band used for wireless power transfer. To maintain the proper timing or switching waveform when operating at high frequencies, a feedback loop is used. The rectification circuit includes a multi-level waveform generator circuit that generates a multi-level control waveform from the input waveform and an indication of its current. The multi-level control waveform is maintained in phase with the input waveform. A control signal generation circuit receives the multi-level control waveform and generates control signals corresponding to levels of the multi-level control waveform. A synchronous rectifier receives the input waveform and includes a plurality of switches to provide an output voltage generated from the input waveform. The switches are coupled to receive the control signals and the output voltage is a function of the multi-level control waveform.
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