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公开(公告)号：US20210065830A1
公开(公告)日：2021-03-04
申请号：US17003185
申请日：2020-08-26
Applicant: Texas Instruments Incorporated
Inventor： Ashwin Raghunathan , Marco Corsi , Baher Haroun , Seyed Miaad Seyed Aliroteh , Swaminathan Sankaran , Robert Floyd Payne
Abstract: A track and hold circuit includes a signal input terminal, a clock input terminal, an output terminal, a transistor, and a bootstrapping circuit with a transformer. The transistor includes a source, a drain, and a gate, where the source is coupled to the signal input terminal, and the drain is coupled to the output terminal. The transformer includes a primary winding coupled to the clock input terminal, and a secondary winding. The secondary winding is coupled between the source and the gate to control a gate-source voltage of the transistor.
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公开(公告)号：US20200212899A1
公开(公告)日：2020-07-02
申请号：US16585155
申请日：2019-09-27
Applicant: Texas Instruments Incorporated
Inventor： Tolga Dinc , Salvatore Luciano Finocchiaro , Gerd Schuppener , Siraj Akhtar , Swaminathan Sankaran , Baher Haroun
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to provide phase imbalance correction. An example system includes a phase detector to obtain a first signal and generate a first output, a comparator coupled to the phase detector, the comparator to generate a second output based on the first output, and an amplifier coupled to the comparator, the amplifier to adjust a first phase response of the first signal based on the second output.
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公开(公告)号：US10461810B2
公开(公告)日：2019-10-29
申请号：US15638212
申请日：2017-06-29
Applicant: Texas Instruments Incorporated
Inventor： Benjamin Stassen Cook , Nathan Brooks , Swaminathan Sankaran , Bradley Allen Kramer , Mark W. Morgan , Baher Haroun
Abstract: A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. A reflective surface is positioned adjacent the backside of each NFC coupler to reflect back side electromagnetic towards the port region.
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公开(公告)号：US20180115346A1
公开(公告)日：2018-04-26
申请号：US15850572
申请日：2017-12-21
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: In described examples, an inductive structure includes first and second inductive coils to conduct respective first and second common mode currents induced by a common mode transient between: a first ground coupled to a connection between the first and second inductive coils; and a galvanically isolated second ground.
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公开(公告)号：US09866283B2
公开(公告)日：2018-01-09
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
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.
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Patent Agency Ranking
16.发明授权公开(公告)号：US09490747B1
公开(公告)日：2016-11-08
申请号：US14986604
申请日：2015-12-31
Applicant: Texas Instruments Incorporated
Inventor： Sachin Kalia , Bradley A. Kramer , Swaminathan Sankaran
CPC classification number: H03B27/00 , H03B5/1212 , H03B5/1215 , H03B5/1228 , H03B5/1296 , H03B2200/0078
Abstract: A quadrature voltage controlled oscillator (QVCO). The QVCO includes a first node for providing a first quadrature signal, a second node for providing a second quadrature signal, a third node for providing a third quadrature signal, and a fourth node for providing a fourth quadrature signal. The QVCO further includes a first coil connected between the first node and the second node and a second coil connected between the third node and the fourth node. The first coil and second coil are positively magnetically coupled.
Abstract translation: 正交压控振荡器（QVCO）。 QVCO包括用于提供第一正交信号的第一节点，用于提供第二正交信号的第二节点，用于提供第三正交信号的第三节点和用于提供第四正交信号的第四节点。 QVCO还包括连接在第一节点和第二节点之间的第一线圈和连接在第三节点和第四节点之间的第二线圈。 第一线圈和第二线圈被正磁耦合。
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公开(公告)号：US09450651B2
公开(公告)日：2016-09-20
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
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: 在第一感应结构中，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。
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公开(公告)号：US09425808B1
公开(公告)日：2016-08-23
申请号：US14732300
申请日：2015-06-05
Applicant: Texas Instruments Incorporated
Inventor： Bradley Allen Kramer , Swaminathan Sankaran , Hassan Ali , Nirmal C. Warke
Abstract: A frequency detection technique includes generating first and second signals such that a frequency of the first signal is the same as a frequency of the second signal and such that the second signal is phase-shifted by a fixed amount with respect to the first signal. The technique further includes generating a third signal having a frequency that corresponds to an absolute value of a difference between the frequency of the first signal and an integer multiple of a frequency of the reference signal. The technique further includes generating a fourth signal having a frequency that corresponds to an absolute value of a difference between the frequency of the second signal and an integer multiple of the frequency of the reference signal. The technique further includes generating an fifth signal indicative of whether a phase relationship between the third and fourth signals is a leading phase relationship, a lagging phase relationship, or an in-phase relationship.
Abstract translation: 频率检测技术包括产生第一和第二信号，使得第一信号的频率与第二信号的频率相同，并且使得第二信号相对于第一信号相移固定的量。 该技术还包括产生具有与第一信号的频率和参考信号的频率的整数倍之间的差的绝对值相对应的频率的第三信号。 该技术还包括产生具有对应于第二信号的频率与参考信号的频率的整数倍的差的绝对值的频率的第四信号。 该技术还包括产生指示第三和第四信号之间的相位关系是否是前导相位关系，滞后相位关系或同相关系的第五信号。
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公开(公告)号：US09143100B2
公开(公告)日：2015-09-22
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
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。
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公开(公告)号：US12126309B2
公开(公告)日：2024-10-22
申请号：US16557571
申请日：2019-08-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Siraj Akhtar , Swaminathan Sankaran
CPC classification number: H03F1/26 , H03F3/183 , H03H11/28 , H03F1/306 , H03F3/505 , H03F2200/03 , H03F2200/318
Abstract: In an example apparatus, a first transistor has a base terminal, a first current terminal and a second current terminal. The base terminal is coupled to an input voltage node. A second transistor has a control terminal, a third current terminal and a fourth current terminal. The third current terminal is coupled to the second current terminal. The fourth current terminal is coupled to a first resistor. A second resistor is coupled to the control terminal. An inductor is coupled between the first resistor and a ground terminal.
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