公开(公告)号：US20160043698A1

公开(公告)日：2016-02-11

申请号：US14452365

申请日：2014-08-05

Applicant: Texas Instruments Incorporated

Inventor： Aritra Banerjee ,  Nathan R. Schemm ,  Rahmi Hezar ,  Lei Ding ,  Baher Haroun

IPC: H03F1/42 ,  B81B7/02 ,  H03F3/21 ,  H03F1/02 ,  H03F3/19

CPC classification number: H03F1/42 ,  B81B7/02 ,  B81B2207/99 ,  H01G5/16 ,  H01G5/38 ,  H01G5/40 ,  H01L23/66 ,  H01L2223/6655 ,  H03F1/0205 ,  H03F1/0294 ,  H03F1/223 ,  H03F1/565 ,  H03F3/19 ,  H03F3/193 ,  H03F3/195 ,  H03F3/21 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/378 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2200/546 ,  H03F2203/21157

Abstract: A circuit includes an amplifier configured to amplify an input signal and generate an output signal. The circuit also includes a tuning network configured to tune frequency response of the amplifier. The tuning network includes at least one tunable capacitor, where the at least one tunable capacitor includes at least one micro-electro mechanical system (MEMS) capacitor. The amplifier could include a first die, the at least one MEMS capacitor could include a second die, and the first die and the second die could be integrated in a single package. The at least one MEMS capacitor could include a MEMS superstructure disposed over a control structure, where the control structure is configured to control the MEMS superstructure and tune the capacitance of the at least one MEMS capacitor.

Abstract translation: 电路包括被配置为放大输入信号并产生输出信号的放大器。 电路还包括配置成调节放大器的频率响应的调谐网络。 调谐网络包括至少一个可调谐电容器，其中至少一个可调电容器包括至少一个微机电系统（MEMS）电容器。 放大器可以包括第一管芯，所述至少一个MEMS电容器可以包括第二管芯，并且第一管芯和第二管芯可以集成在单个封装中。 所述至少一个MEMS电容器可以包括设置在控制结构上的MEMS超结构，其中所述控制结构被配置为控制所述MEMS超结构并调谐所述至少一个MEMS电容器的电容。

公开(公告)号：US20210096442A1

公开(公告)日：2021-04-01

申请号：US16586644

申请日：2019-09-27

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Matthew Kempf ,  Nirmal C. Warke ,  David P. Magee ,  Rahmi Hezar ,  Baher S. Haroun

IPC: G02F1/29 ,  G01S7/481 ,  G01S17/08

Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.

公开(公告)号：US10205617B2

公开(公告)日：2019-02-12

申请号：US13949345

申请日：2013-07-24

Applicant: Texas Instruments Incorporated

Inventor： Lei Ding ,  Rahmi Hezar ,  Zigang Yang

IPC: H04L27/26

Abstract: For crest factor reduction in a first signal having first and second components, the first component is delayed. A second signal is generated in response to detecting that a peak in the first component exceeds a predetermined threshold. Amplitude of the peak in the first component is reduced in response to detecting that the peak in the first component exceeds the predetermined threshold. Reducing amplitude of the peak in the first component includes adding the second signal to the delayed first component.

公开(公告)号：US10116270B2

公开(公告)日：2018-10-30

申请号：US15265257

申请日：2016-09-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Aritra Banerjee ,  Nathan R. Schemm ,  Rahmi Hezar ,  Lei Ding ,  Baher Haroun

IPC: H03F3/191 ,  H03F1/42 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  B81B7/02 ,  H03F1/22 ,  H03F3/195 ,  H03F3/24 ,  H03F1/56 ,  H03F3/193

Abstract: A circuit includes an amplifier configured to amplify an input signal and generate an output signal. The circuit also includes a tuning network configured to tune frequency response of the amplifier. The tuning network includes at least one tunable capacitor, where the at least one tunable capacitor includes at least one micro-electro mechanical system (MEMS) capacitor. The amplifier could include a first die, the at least one MEMS capacitor could include a second die, and the first die and the second die could be integrated in a single package. The at least one MEMS capacitor could include a MEMS superstructure disposed over a control structure, where the control structure is configured to control the MEMS superstructure and tune the capacitance of the at least one MEMS capacitor.

公开(公告)号：US20180226880A1

公开(公告)日：2018-08-09

申请号：US15424426

申请日：2017-02-03

Applicant: Texas Instruments Incorporated

Inventor： Rahmi Hezar ,  Jeffrey Morroni

IPC: H02M1/14 ,  H02M3/156

CPC classification number: H02M1/44 ,  H02M3/156 ,  H02M2001/0012 ,  H02M2001/0038

Abstract: Methods and apparatus for providing adaptive electromagnetic interference control in a power converter are disclosed. An example apparatus includes a current interface to measure an internal current of the power converter. The example apparatus further includes a performance determiner to determine a spur power of an output voltage of the power converter based on the measured internal current. The example apparatus further includes a ramp generator to adjust a hopping configuration of a ramp voltage based on the spur power.

公开(公告)号：US09281976B2

公开(公告)日：2016-03-08

申请号：US14172714

申请日：2014-02-04

Applicant: Texas Instruments Incorporated

Inventor： Rahmi Hezar ,  Lei Ding ,  Baher Haroun

IPC: H04L5/00 ,  H04L27/20 ,  H03F3/19 ,  H03F3/24 ,  H03F1/02

CPC classification number: H04L27/3411 ,  H03F1/02 ,  H03F1/0294 ,  H03F3/19 ,  H03F3/2175 ,  H03F3/245 ,  H03F2200/331 ,  H03F2200/336 ,  H03F2200/451 ,  H04B1/02 ,  H04B14/062 ,  H04L27/2053

Abstract: At least one tone is generated. An output signal is generated in response to an input signal and the at least one tone. The output signal is modulated. The input signal and the at least one tone are represented in the modulated output signal. The at least one tone is outside a bandwidth of the input signal as represented in the modulated output signal. The modulated output signal is amplified. The at least one tone in the amplified signal is attenuated after the amplifying.

Abstract translation: 至少产生一个音调。 响应于输入信号和至少一个音调产生输出信号。 输出信号被调制。 在调制输出信号中表示输入信号和至少一个音调。 至少一个音调在调制输出信号所表示的输入信号的带宽之外。 调制输出信号被放大。 放大信号中的至少一个音调在放大后衰减。

公开(公告)号：US20150372645A1

公开(公告)日：2015-12-24

申请号：US14312239

申请日：2014-06-23

Applicant: Texas Instruments Incorporated

Inventor： Aritra Banerjee ,  Joonhoi Hur ,  Baher Haroun ,  Nathan Richard Schemm ,  Rahmi Hezar ,  Lei Ding

IPC: H03F1/02 ,  H03F3/217 ,  H03F3/21 ,  H03F3/193

CPC classification number: H03F1/0205 ,  H03F1/0294 ,  H03F3/193 ,  H03F3/211 ,  H03F3/217 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/2176 ,  H03F3/45179 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2203/21139 ,  H03F2203/21142

Abstract: An outphasing amplifier includes a first class-E power amplifier (16-1) having an output coupled to a first conductor (31-1) and an input receiving a first RF drive signal (S1(t)). A first reactive element (CA-1) is coupled between the first conductor and a second conductor (30-1). A second reactive element (LA-1) is coupled between the second conductor and a third conductor (32-1). A second class-E power amplifier (17-1) includes an output coupled to a fourth conductor (31-2) and an input coupled to a second RF drive signal (S2(t)), a third reactive element (CA-3) coupled between the second and fourth conductors. Outputs of the first and second power amplifiers are combined by the first, second and third reactive elements to produce an output current in a load (R). An efficiency enhancement circuit (LEEC-1) is coupled between the first and fourth conductors to improve power efficiency at back-off power levels. Power enhancement circuits (20-1,2) are coupled to the first and fourth conductors, respectively.

Abstract translation: 外相放大器包括具有耦合到第一导体（31-1）的输出的第一E类功率放大器（16-1）和接收第一RF驱动信号（S1（t））的输入。 第一电抗元件（CA-1）耦合在第一导体和第二导体（30-1）之间。 第二电抗元件（LA-1）耦合在第二导体和第三导体（32-1）之间。 第二类E功率放大器（17-1）包括耦合到第四导体（31-2）的输出和耦合到第二RF驱动信号（S2（t））的输入，第三反应元件（CA-3 ）耦合在第二和第四导体之间。 第一和第二功率放大器的输出由第一，第二和第三无功元件组合以在负载（R）中产生输出电流。 效率增强电路（LEEC-1）耦合在第一和第四导体之间，以提高退避功率电平的功率效率。 功率增强电路（20-1,2）分别耦合到第一和第四导体。

公开(公告)号：US09209791B2

公开(公告)日：2015-12-08

申请号：US14020242

申请日：2013-09-06

Applicant: Texas Instruments Incorporated

Inventor： Lei Ding ,  Rahmi Hezar ,  Joonhoi Hur

IPC: H03K7/08

CPC classification number: H03K7/08

Abstract: A method of canceling nonlinear distortions in pulse width modulated signals includes receiving an input signal. A first signal that is the modulated input signal is generated. The first signal has quantized levels representing the input signal. A pulse width modulated (PWM) sequence that is representative of the first signal is generated. A second signal that is the PWM sequence mixed with a carrier signal is generated. An error signal is generated in response to the first signal and modeled from the second signal. The error signal is added to the input signal.

Abstract translation: 消除脉宽调制信号中的非线性失真的方法包括接收输入信号。 产生作为调制输入信号的第一信号。 第一信号具有表示输入信号的量化电平。 产生代表第一信号的脉冲宽度调制（PWM）序列。 产生与载波信号混合的PWM序列的第二信号。 响应于第一信号产生误差信号并从第二信号建模。 误差信号加到输入信号上。

公开(公告)号：US12154992B2

公开(公告)日：2024-11-26

申请号：US17402287

申请日：2021-08-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rahmi Hezar ,  Henry Litzmann Edwards ,  Miaad Aliroteh ,  Srinath Mathur Ramaswamy ,  Baher Haroun ,  Gerd Schuppener

IPC: H01L31/02 ,  G01S7/4861 ,  H01L31/107

Abstract: A sensor chip includes a sensor pixel. The sensor pixel includes an avalanche photodetector. A circuit is adjacent to the avalanche photodetector. The circuit is coupled to the avalanche photodetector. An isolation structure at least partially encloses the circuit and is between the avalanche photodetector and the circuit.

公开(公告)号：US11754905B2

公开(公告)日：2023-09-12

申请号：US16586644

申请日：2019-09-27

Applicant: Texas Instruments Incorporated

Inventor： Jeffrey Matthew Kempf ,  Nirmal C. Warke ,  David P. Magee ,  Rahmi Hezar ,  Baher S. Haroun

IPC: G01S17/08 ,  G02F1/29 ,  G01S7/481

CPC classification number: G02F1/292 ,  G01S7/4814 ,  G01S17/08

Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.