公开(公告)号：US09806673B2

公开(公告)日：2017-10-31

申请号：US15165339

申请日：2016-05-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H03F3/217 ,  H03F1/02 ,  H03F3/193 ,  H03F3/21 ,  H03F3/45

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.

公开(公告)号：US09602325B2

公开(公告)日：2017-03-21

申请号：US15063146

申请日：2016-03-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rahmi Hezar ,  Lei Ding ,  Baher Haroun

IPC: H04L5/00 ,  H04L27/34 ,  H04L27/20 ,  H03F3/19 ,  H03F3/24 ,  H03F1/02 ,  H04B14/06 ,  H04B1/02

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.

公开(公告)号：US20170005628A1

公开(公告)日：2017-01-05

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: H03F1/42 ,  H03F3/21 ,  H03F3/193

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：US09473078B2

公开(公告)日：2016-10-18

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

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：US20130241758A1

公开(公告)日：2013-09-19

申请号：US13887918

申请日：2013-05-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rahmi Hezar ,  Baher Haroun ,  Halil Kiper ,  Mounir Fares ,  Ajay Kumar

IPC: H03M1/66

CPC classification number: H03M1/66 ,  H03M1/747 ,  H03M3/464

Abstract: A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values within the two-level stream of bits; and a switch configured to determine which of three different paths to couple a current source to based on a value of the three-level control signal. Thus, based on adjacent values of the output stream a three-level control signal is generated which controls coupling of the current source to one of three different paths. This type of three-level digital-to-analog converter can be, for example, part of the feedback loop of an analog-to-digital converter. Similar techniques can also be utilized in a multi-segment digital-to-analog converter in which each segment of the DAC is controlled by a 3-level control signal and the DAC is implement using PMOS devices. The current source for each DAC segment is diverted to ground, the M-node, or the P-node depending on the value of the 3-level control signal.

Abstract translation: 一种用于处理信号的系统包括：检测器，被配置为检测两级比特流; 转换器，被配置为基于所述两级比特流内的两个相邻值生成三电平控制信号; 以及开关，被配置为基于三电平控制信号的值来确定三个不同路径中的哪一个耦合电流源。 因此，基于输出流的相邻值，生成三电平控制信号，其控制电流源与三个不同路径之一的耦合。 这种类型的三电平数模转换器可以是例如模数转换器的反馈回路的一部分。 类似的技术也可以用在多段数模转换器中，其中DAC的每个段由3电平控制信号控制，并且使用PMOS器件实现DAC。 每个DAC段的电流源根据3电平控制信号的值转移到地，M节点或P节点。