公开(公告)号：US20160254846A1

公开(公告)日：2016-09-01

申请号：US15149996

申请日：2016-05-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian

IPC: H04B5/00

CPC classification number: H04B5/0087 ,  H04B5/0031 ,  H04B5/0037

Abstract: In described examples, an inductive structure includes a power coil and a data coil. The data coil is substantially centered within the power coil. A first portion of the data coil is for conducting current in a first direction. A second portion of the data coil is for conducting current in a second direction opposite the first direction. The first portion of the data coil is connected at a ground node to the second portion of the data coil. The power coil is for: receiving power without data; and outputting the received power without data.

Abstract translation: 在所述示例中，电感结构包括电源线圈和数据线圈。 数据线圈基本上位于功率线圈的中心。 数据线圈的第一部分用于沿第一方向传导电流。 数据线圈的第二部分用于沿与第一方向相反的第二方向传导电流。 数据线圈的第一部分在接地节点连接到数据线圈的第二部分。 电源线圈用于：无数据接收功率; 并输出没有数据的接收功率。

公开(公告)号：US20160043562A1

公开(公告)日：2016-02-11

申请号：US14657685

申请日：2015-03-13

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Nachiket V. Desai ,  Sakshi Arora ,  Rajaram Subramonian ,  Gerard Socci ,  Dingkun Du

IPC: H02J5/00 ,  H02M7/217 ,  H02M7/06

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: A wireless power transfer system includes a wireless power receiver having a rectifier. The rectifier includes switches. The wireless power receiver is operable to control the switches for ensuring a complex impedance at the input of the rectifier.

Abstract translation: 无线电力传输系统包括具有整流器的无线电力接收器。 整流器包括开关。 无线电力接收器可操作以控制开关，以确保整流器输入端的复阻抗。

公开(公告)号：US11283361B2

公开(公告)日：2022-03-22

申请号：US16554095

申请日：2019-08-28

Applicant: Texas Instruments Incorporated

Inventor： Mustapha El Markhi ,  Erhan Ozalevli ,  Tuli Dake ,  Dingkun Du ,  Gianpaolo Lisi ,  Jingwei Xu

IPC: H02M3/335 ,  H02J50/12 ,  H02M1/08

Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.

公开(公告)号：US20180152048A1

公开(公告)日：2018-05-31

申请号：US15362563

申请日：2016-11-28

Applicant: Texas Instruments Incorporated

Inventor： Kosha Mahmodieh ,  Gianpaolo Lisi ,  Ali Djabbari ,  Jingwei Xu ,  Vijayalakshmi Devarajan

IPC: H02J50/10 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02J7/025 ,  H02J50/12

Abstract: Methods, apparatus, systems and articles of manufacture to efficiently transfer power wirelessly are disclosed. An example apparatus includes a feedback loop to when a second current value is greater than a first current value, change a direction value, the second current value being obtained after the first current value; when the second current value is less than the first current value, maintain the direction value; and a summer to when the direction value corresponds to a first direction value, increase a reference signal by a step size; and when the direction value corresponds to a second direction value different than the first direction value, decrease the reference signal by the step size.

公开(公告)号：US09785159B2

公开(公告)日：2017-10-10

申请号：US14247617

申请日：2014-04-08

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian ,  Kosha Mahmodieh

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  G05F1/12 ,  H02M7/538

CPC classification number: G05F1/12 ,  H02M7/53803 ,  Y02B70/1441

Abstract: A resonant power transfer system includes resonant circuitry (26) including an inductor coil (59) and a resonant capacitor (51) coupled to a first terminal (27) of the inductor coil, wherein the inductor coil and the resonant capacitor resonate to produce an excitation signal (IS) and a state variable signal (VCS1). Sub-sampling circuitry (30) samples first and second points of the state variable signal at a rate which is substantially less than the RF frequency of the state variable signal. Information recovery circuitry (32) produces a state variable parameter signal representing a parameter (A) of the state variable signal from information in the first and second sampled points. Control circuitry (38) produces a first control signal in response to the state variable parameter signal. Detection and optimization circuitry (41) produces a second control signal in response to the state variable parameter signal. Voltage regulation circuitry (45) produces a regulated supply voltage in response to the first control signal. Switching inverter circuitry produces the excitation signal in response to the regulated supply voltage and the second control signal.

公开(公告)号：US09337905B2

公开(公告)日：2016-05-10

申请号：US14026515

申请日：2013-09-13

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramoniam

IPC: H04B5/00

CPC classification number: H04B5/0087 ,  H04B5/0031 ,  H04B5/0037

Abstract: An inductive structure includes a power coil and a data coil. The data coil is substantially centered within the power coil. A first portion of the data coil conducts current in a first direction. A second portion of the data coil conducts current in a second direction opposite the first direction. The first portion of the data coil is connected at a node to the second portion of the data coil. The node is coupled to a ground.

Abstract translation: 电感结构包括电源线圈和数据线圈。 数据线圈基本上位于功率线圈的中心。 数据线圈的第一部分沿第一方向传导电流。 数据线圈的第二部分在与第一方向相反的第二方向上传导电流。 数据线圈的第一部分在节点处连接到数据线圈的第二部分。 节点耦合到地面。

公开(公告)号：US10033440B2

公开(公告)日：2018-07-24

申请号：US15149996

申请日：2016-05-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian

IPC: H04B5/00

Abstract: In described examples, an inductive structure includes a power coil and a data coil. The data coil is substantially centered within the power coil. A first portion of the data coil is for conducting current in a first direction. A second portion of the data coil is for conducting current in a second direction opposite the first direction. The first portion of the data coil is connected at a ground node to the second portion of the data coil. The power coil is for: receiving power without data; and outputting the received power without data.

公开(公告)号：US20170012677A1

公开(公告)日：2017-01-12

申请号：US15270962

申请日：2016-09-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajaram Subramonian ,  Gianpaolo Lisi ,  Swaminathan Sankaran ,  Bradley Allen Kramer ,  Gerard Socci

IPC: H04B5/00

CPC classification number: H04B5/0087 ,  H04B5/0031 ,  H04B5/0037

Abstract: A first inductive structure includes a data coil to transfer data by inductive coupling with a second inductive structure. First and second portions of the data coil are connected to one another at a center tap to conduct respective first and second common mode currents, induced by a common mode transient between: a first ground line coupled to the center tap; and a galvanically isolated second ground line of the second inductive structure.

Abstract translation: 第一感应结构包括通过与第二感应结构的感应耦合传送数据的数据线圈。 数据线圈的第一和第二部分在中心抽头处彼此连接，以进行由共模瞬变引起的相应的第一和第二共模电流：耦合到中心抽头的第一接地线; 以及第二感应结构的电隔离的第二接地线。

公开(公告)号：US20150004907A1

公开(公告)日：2015-01-01

申请号：US14311354

申请日：2014-06-23

Applicant: Texas Instruments Incorporated

Inventor： Rajaram Subramoniam ,  Gianpaolo Lisi ,  Swaminathan Sankaran ,  Bradley Allen Kramer ,  Gerard Socci

IPC: H04B5/00 ,  H04B5/02

CPC classification number: H04B5/0087 ,  H04B5/0031 ,  H04B5/0037

Abstract: In a first inductive structure, a first data coil includes: a first portion for conducting a first common mode current in a first direction; and a second portion for conducting a second common mode current in a second direction opposite the first direction. The first and second portions of the first data coil are connected at a first node. In a second inductive structure, a second data coil includes: a first portion for conducting a third common mode current in the first direction; and a second portion for conducting a fourth common mode current in the second direction. The first and second portions of the second data coil are connected at a second node galvanically isolated from the first node. The first, second, third and fourth common mode currents are induced by a common mode transient.

Abstract translation: 在第一电感结构中，第一数据线圈包括：用于在第一方向上传导第一共模电流的第一部分; 以及用于在与第一方向相反的第二方向上传导第二共模电流的第二部分。 第一数据线圈的第一和第二部分在第一节点连接。 在第二感应结构中，第二数据线圈包括：用于在第一方向上传导第三共模电流的第一部分; 以及用于在第二方向上传导第四共模电流的第二部分。 第二数据线圈的第一和第二部分在与第一节点电隔离的第二节点处连接。 第一，第二，第三和第四共模电流由共模瞬变引起。

公开(公告)号：US20140319921A1

公开(公告)日：2014-10-30

申请号：US14247617

申请日：2014-04-08

Applicant: Texas Instruments Incorporated

Inventor： Gianpaolo Lisi ,  Gerard Socci ,  Ali Djabbari ,  Rajaram Subramonian ,  Kosha Mahmodieh

IPC: G05F1/12 ,  H01F38/14

CPC classification number: G05F1/12 ,  H02M7/53803 ,  Y02B70/1441

Abstract: A resonant power transfer system includes resonant circuitry (26) including an inductor coil (59) and a resonant capacitor (51) coupled to a first terminal (27) of the inductor coil, wherein the inductor coil and the resonant capacitor resonate to produce an excitation signal (IS) and a state variable signal (VCS1). Sub-sampling circuitry (30) samples first and second points of the state variable signal at a rate which is substantially less than the RF frequency of the state variable signal. Information recovery circuitry (32) produces a state variable parameter signal representing a parameter (A) of the state variable signal from information in the first and second sampled points. Control circuitry (38) produces a first control signal in response to the state variable parameter signal. Detection and optimization circuitry (41) produces a second control signal in response to the state variable parameter signal. Voltage regulation circuitry (45) produces a regulated supply voltage in response to the first control signal. Switching inverter circuitry produces the excitation signal in response to the regulated supply voltage and the second control signal.

Abstract translation: 谐振功率传输系统包括谐振电路（26），其包括耦合到电感线圈的第一端子（27）的电感器线圈（59）和谐振电容器（51），其中电感线圈和谐振电容器谐振以产生 激励信号（IS）和状态变量信号（VCS1）。 子采样电路（30）以基本上小于状态变量信号的RF频率的速率对状态变量信号的第一和第二点进行采样。 信息恢复电路（32）根据第一和第二采样点中的信息产生状态变量参数信号，该状态变量参数信号表示状态变量信号的参数（A）。 控制电路（38）响应于状态可变参数信号产生第一控制信号。 检测和优化电路（41）响应于状态可变参数信号产生第二控制信号。 电压调节电路（45）响应于第一控制信号产生稳定的电源电压。 开关逆变器电路响应于稳定的电源电压和第二控制信号产生激励信号。