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    Circuit and method for extracting amplitude and phase information in a resonant system
    2.
    发明授权
    Circuit and method for extracting amplitude and phase information in a resonant system 有权

    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.

    INDUCTIVE STRUCTURES WITH REDUCED EMISSIONS AND INTERFERENCE
    3.
    发明申请
    INDUCTIVE STRUCTURES WITH REDUCED EMISSIONS AND INTERFERENCE 审中-公开
    具有减少排放和干扰的电感结构

    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。

    Inductive structures with reduced emissions and interference
    5.
    发明授权
    Inductive structures with reduced emissions and interference 有权

    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.

    INDUCTIVE STRUCTURES WITH IMPROVED COMMON MODE TRANSIENT IMMUNITY
    6.
    发明申请
    INDUCTIVE STRUCTURES WITH IMPROVED COMMON MODE TRANSIENT IMMUNITY 审中-公开
    具有改进的共同模式瞬态免疫的电感结构

    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。

    CIRCUIT AND METHOD FOR EXTRACTING AMPLITUDE AND PHASE INFORMATION IN A RESONANT SYSTEM
    7.
    发明申请
    CIRCUIT AND METHOD FOR EXTRACTING AMPLITUDE AND PHASE INFORMATION IN A RESONANT SYSTEM 有权
    在谐振系统中提取振幅和相位信息的电路和方法

    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。

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