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    METHOD AND CIRCUITRY FOR MULTI-STAGE AMPLIFICATION
    101.
    发明申请
    METHOD AND CIRCUITRY FOR MULTI-STAGE AMPLIFICATION 有权
    用于多级放大的方法和电路

    公开(公告)号：US20150091642A1

    公开(公告)日：2015-04-02

    申请号：US14066980

    申请日：2013-10-30

    Applicant: Texas Instruments Incorporated

    Inventor： Swaminathan Sankaran ,  Bradley Allen Kramer ,  Hassan Ali ,  Nirmal C. Warke

    IPC: H03F1/00

    CPC classification number: H03F3/45 ,  H03F1/00 ,  H03F1/42 ,  H03F3/45475 ,  H03F2200/36 ,  H03F2200/411 ,  H03F2200/537

    Abstract: In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.

    Abstract translation: 在放大器中，第一级接收由第一和第二输入电压形成的差分输入电压，并且在具有相应的第一和第二线电压的第一和第二线上响应于此输出第一差分电流。 第二级接收第一和第二线电压，并在具有相应的第三和第四线电压的第三和第四线上响应于此输出第二差分电流。 变压器包括第一和第二线圈。 第一线圈的第一端子通过第一电阻器耦合到第一线路。 第一线圈的第二端子通过第二电阻器耦合到第二线路。 第二线圈的第一端子通过第三电阻器耦合到第三线路。 第二线圈的第二端子通过第四电阻器耦合到第四线路。

    FREQUENCY MULTIPLIER
    102.
    发明申请
    FREQUENCY MULTIPLIER 有权
    频率乘法器

    公开(公告)号：US20140198550A1

    公开(公告)日：2014-07-17

    申请号：US13741010

    申请日：2013-01-14

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Swaminathan Sankaran ,  Vijaya B. Rentala ,  Brian B. Ginsburg ,  Srinath M. Ramaswamy ,  Eunyoung Seok ,  Baher Haroun ,  Bradley A. Kramer ,  Hassan Ali ,  Nirmal C. Warke

    IPC: H02M5/16 ,  H02M5/297

    CPC classification number: H02M5/16 ,  H02M5/297 ,  H03B19/14

    Abstract: An apparatus is provided. A differential pair of transistors is configured to receive a first differential signal having a first frequency, and a transformer, having a primary side and a secondary side is provided. The primary side of the transformer is coupled to the differential pair of transistors, and the secondary side of the transformer is configured to output a second differential signal having a second frequency, where the second frequency is greater than the first frequency. A first transistor is coupled to the first supply rail, the primary side of the transformer, and the differential pair of transistors, where the first transistor is of a first conduction type. A second transistor is coupled to the second supply rail, the primary side of the transformer, and the differential pair of transistors, where the second transistor is of a second conduction type.

    Abstract translation: 提供了一种装置。 差分对晶体管被配置为接收具有第一频率的第一差分信号，并且提供具有初级侧和次级侧的变压器。 变压器的初级侧耦合到差分对晶体管，并且变压器的次级侧被配置为输出具有第二频率的第二差分信号，其中第二频率大于第一频率。 第一晶体管耦合到第一电源轨，变压器的初级侧和差分对晶体管，其中第一晶体管是第一导电类型。 第二晶体管耦合到第二电源轨，变压器的初级侧和差分对晶体管，其中第二晶体管是第二导电类型。

    Frequency multiplier
    103.
    发明授权
    Frequency multiplier 有权
    倍频器

    公开(公告)号：US08760899B1

    公开(公告)日：2014-06-24

    申请号：US13741010

    申请日：2013-01-14

    Applicant: Texas Instruments Incorporated

    Inventor： Swaminathan Sankaran ,  Vijaya B. Rentala ,  Brian B. Ginsburg ,  Srinath M. Ramaswamy ,  Eunyoung Seok ,  Baher Haroun ,  Bradley A. Kramer ,  Hassan Ali ,  Nirmal C. Warke

    IPC: H02M5/275

    CPC classification number: H02M5/16 ,  H02M5/297 ,  H03B19/14

    Abstract: An apparatus is provided. A differential pair of transistors is configured to receive a first differential signal having a first frequency, and a transformer, having a primary side and a secondary side is provided. The primary side of the transformer is coupled to the differential pair of transistors, and the secondary side of the transformer is configured to output a second differential signal having a second frequency, where the second frequency is greater than the first frequency. A first transistor is coupled to the first supply rail, the primary side of the transformer, and the differential pair of transistors, where the first transistor is of a first conduction type. A second transistor is coupled to the second supply rail, the primary side of the transformer, and the differential pair of transistors, where the second transistor is of a second conduction type.

    Abstract translation: 提供了一种装置。 差分对晶体管被配置为接收具有第一频率的第一差分信号，并且提供具有初级侧和次级侧的变压器。 变压器的初级侧耦合到差分对晶体管，并且变压器的次级侧被配置为输出具有第二频率的第二差分信号，其中第二频率大于第一频率。 第一晶体管耦合到第一电源轨，变压器的初级侧和差分对晶体管，其中第一晶体管是第一导电类型。 第二晶体管耦合到第二电源轨，变压器的初级侧和差分对晶体管，其中第二晶体管是第二导电类型。

    Multi-phase oscillators
    104.
    发明授权
    Multi-phase oscillators 有权

    公开(公告)号：US12224708B2

    公开(公告)日：2025-02-11

    申请号：US17389935

    申请日：2021-07-30

    Applicant: Texas Instruments Incorporated

    Inventor： Bichoy Bahr ,  Michael Henderson Perrott ,  Baher Haroun ,  Swaminathan Sankaran

    IPC: H03B5/32 ,  G06F1/04

    Abstract: An oscillator circuit includes a first BAW oscillator, a first coupling stage, a second BAW oscillator, and a second coupling stage. The first BAW oscillator is configured to generate a first output signal at a frequency. The first coupling stage is coupled to the first BAW oscillator, and is configured to amplify the first output signal. The second BAW oscillator is coupled to the first coupling stage, and is configured to generate a second output signal at the frequency. The second output signal differs in phase from the first output signal. The second coupling stage is coupled to the first BAW oscillator and the second BAW oscillator, and is configured to amplify the second output signal and drive the first BAW oscillator.

    Broadband frequency multiplier with harmonic suppression
    105.
    发明授权
    Broadband frequency multiplier with harmonic suppression 有权

    公开(公告)号：US12132488B2

    公开(公告)日：2024-10-29

    申请号：US18148845

    申请日：2022-12-30

    Applicant: Texas Instruments Incorporated

    Inventor： Tolga Dinc ,  Sachin Kalia ,  Swaminathan Sankaran

    IPC: G06F1/08 ,  H03H7/01 ,  H03K5/00

    CPC classification number: H03K5/00006 ,  G06F1/08 ,  H03H7/0115 ,  H03H7/0161

    Abstract: Described embodiments include a circuit having a quadrature phase generator circuit having differential generator inputs, in-phase differential generator outputs and quadrature-phase differential generator outputs. A first frequency multiplier circuit has first differential multiplier inputs and a first multiplier output, wherein the first differential multiplier inputs are coupled to the in-phase differential generator outputs. A second frequency multiplier circuit has second differential multiplier inputs and a second multiplier output. The second multiplier differential inputs are coupled to the quadrature-phase differential generator outputs. A transformer includes a primary inductor and a secondary inductor, wherein the primary inductor is coupled between the first and second multiplier outputs, and the second inductor is coupled between an output voltage terminal and a ground terminal.

    MONOLITHIC ULTRASONIC FLOW METER AND PARTICLE DETECTION SYSTEM
    109.
    发明申请
    MONOLITHIC ULTRASONIC FLOW METER AND PARTICLE DETECTION SYSTEM 有权

    公开(公告)号：US20230134722A1

    公开(公告)日：2023-05-04

    申请号：US17513523

    申请日：2021-10-28

    Applicant: Texas Instruments Incorporated

    Inventor： Yanbo He ,  Bichoy Bahr ,  Swaminathan Sankaran

    IPC: G01F1/66

    Abstract: An ultrasonic fluid flow measurement system includes an ultrasonic transducer having a semiconductor substrate and an interconnect region over the semiconductor substrate. The ultrasonic transducer has two arrays of ferroelectric resonators in the interconnect region. The arrays of ferroelectric resonators are parallel to a fluid boundary surface of a fluid flow channel attached to the ultrasonic transducer. The ultrasonic transducer includes a transmitter circuit and a detector circuit coupled to the arrays of ferroelectric resonators. The transmitter circuit and the detector circuit include active components in the semiconductor substrate. The ultrasonic fluid flow measurement system may be configured to measure speeds of particles in fluids in the fluid flow channel. The ultrasonic fluid flow measurement system may also be used to measure flow speeds of a fluid in the fluid flow channel.

    MULTIPLE ANTENNAS IN A MULTI-LAYER SUBSTRATE
    110.
    发明申请
    MULTIPLE ANTENNAS IN A MULTI-LAYER SUBSTRATE 有权

    公开(公告)号：US20230120584A1

    公开(公告)日：2023-04-20

    申请号：US17876449

    申请日：2022-07-28

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Hassan Ali ,  Richard Wallace ,  Swaminathan Sankaran

    IPC: H01Q1/22 ,  H05K1/02 ,  H01L23/66

    Abstract: In one example, an apparatus comprises an integrated circuit, a first metal layer, and a second metal layer. The first metal layer includes a first antenna connected to the integrated circuit, the first antenna being in a first region, the first region being external to the integrated circuit. The second metal layer includes a second antenna in a second region external to the integrated circuit. The apparatus further comprises a substrate between the first and second metal layers, in which the substrate and the first and second metal layers form a laminate. The apparatus further comprises a through-via in the substrate that couples between the first and second antennas.

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