公开(公告)号：WO2022119875A1

公开(公告)日：2022-06-09

申请号：PCT/US2021/061321

申请日：2021-12-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： DINC, Tolga ,  KALIA, Sachin ,  SANKARAN, Swaminathan ,  HAROUN, Baher

IPC: H03F3/26 ,  H03F3/42

Abstract: A system (200) includes a first differential amplifier (102) and a first transformer (X1) with a primary coil (L1) coupled to an output of the first differential amplifier (102) and with a secondary coil (L2) coupled to a load (RL). The system (200) also includes a second differential amplifier (104) and a second transformer (X2) with a primary coil (L3) coupled to an output of the second differential amplifier (104) and with a secondary coil (L4) coupled in series with the secondary coil (L2) of the first transformer (X1). The system (200) also includes a tuning network (204) coupled to a center tap node (206) between the secondary coil (L2) of the first transformer (X1) and the secondary coil (L4) of the second transformer (X2).

公开(公告)号：WO2015130888A1

公开(公告)日：2015-09-03

申请号：PCT/US2015/017661

申请日：2015-02-26

Applicant: ANALOG DEVICES, INC.

Inventor： GILBERT, Barrie

IPC: H03F3/42 ,  H03F3/45 ,  H03F1/26

CPC classification number: H03G3/007 ,  H03F1/26 ,  H03F3/04 ,  H03F3/45085 ,  H03F3/45089 ,  H03F2200/171 ,  H03F2200/261 ,  H03F2203/45392

Abstract: A hybrid, translinear amplifier has at least one gain stage including first and second gain transistors, at least a first load transistor electrically coupled to the first gain transistor and at least a second load transistor electrically coupled to the second gain transistor, and load resistors electrically coupled to the load transistors. A hybrid, translinear amplifier with selectable gain has a first hybrid, translinear amplifier cell having at least first and second load transistors, each load transistor having a load resistor, at least one additional hybrid, translinear amplifier cell having at least third, fourth, fifth and sixth load transistors, each load transistor having a load resistor, at least two switches electrically coupled to the amplifier cells to allow selection of one of the amplifier cells, and a differential output signal having a gain corresponding to a selected amplifier cell.

Abstract translation: 混合式跨线性放大器具有至少一个包括第一和第二增益晶体管的增益级，至少第一负载晶体管电耦合到第一增益晶体管和至少第二负载晶体管，电耦合到第二增益晶体管，以及负载电阻器 耦合到负载晶体管。 具有可选择增益的混合式，跨线性放大器具有至少第一和第二负载晶体管的第一混合式跨线性放大器单元，每个负载晶体管具有负载电阻器，至少一个额外的混合式跨线性放大器单元，具有至少第三，第四，第五 和第六负载晶体管，每个负载晶体管具有负载电阻器，电耦合到放大器单元的至少两个开关，以允许选择放大器单元之一，以及具有对应于所选放大器单元的增益的差分输出信号。

公开(公告)号：WO98054833A1

公开(公告)日：1998-12-03

申请号：PCT/BR1998/000030

申请日：1998-06-01

IPC: H03F3/42 ,  H03G1/00 ,  H03G3/30 ,  H03F3/08

CPC classification number: H03G3/3084 ,  H03F3/423 ,  H03G1/0023

Abstract: Improved transimpedance amplifier in monolithic integrated circuit form, comprising an inverting cascode amplifier stage having at least one peaking inductor (64, 68, 114, 118, 152, 157, 172, 177) followed by one or more amplification stages, where the transimpedance amplifier gain is controlled by means of the adjustment of the D.C. current flowing through the first transistor (65, 115, 153, 173) cascode inverter stage so as to regulate its transconductance. Said adjustment comprises the addition or subtraction of current at the connection of the first and second transistors in the inverting cascode amplifier stage, either by means of a resistor connected between said connection and a preset positive, negative or zero voltage source or by an accessory current supply circuit that adds or subtracts a controlled DC current amount.

Abstract translation: 改进的单片集成电路形式的跨阻抗放大器，包括具有至少一个峰值电感器（64,68,114,118,152,157,172,177）的反相共源共栅放大器级，随后是一个或多个放大级，其中跨阻放大器 通过调节流过第一晶体管（65,115,153,173）的共源共栅反相器级的直流电流来调节增益，从而调节其跨导。 所述调整包括在反相共源共栅放大器级中的第一和第二晶体管的连接处的电流的加法或减法，通过连接在所述连接和预设的正，负或零电压源之间的电阻器或通过附件电流 供电电路，增加或减少受控直流电流量。

公开(公告)号：WO2017062195A1

公开(公告)日：2017-04-13

申请号：PCT/US2016/053305

申请日：2016-09-23

Applicant: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.

Inventor： RYAN, David

IPC: H04B1/525 ,  H03F3/193 ,  H03F3/42 ,  H03F3/45

CPC classification number: H04L5/14 ,  H03F1/565 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/45394 ,  H04B1/40 ,  H04B1/525

Abstract: An apparatus includes a first gain stage, a combiner and a second gain stage. The first gain stage may be configured to amplify a receive signal acquired from a circuit to generate an intermediate signal. The combiner may be configured to combine the intermediate signal with a cancellation signal to generate a combined signal. The cancellation signal is generally derived from a transmit signal a portion of which appears in the receive signal through the circuit. The second gain stage may be configured to amplify the combined signal to generate an output signal.

Abstract translation: 一种装置包括第一增益级，组合器和第二增益级。 第一增益级可以被配置为放大从电路获取的接收信号以产生中间信号。 组合器可以被配置为将中间信号与消除信号组合以产生组合信号。 消除信号通常来自发射信号，其一部分出现在通过电路的接收信号中。 第二增益级可以被配置为放大组合信号以产生输出信号。

公开(公告)号：WO2016168736A1

公开(公告)日：2016-10-20

申请号：PCT/US2016/027941

申请日：2016-04-15

Applicant: MORFIS SEMICONDUCTOR, INC.

Inventor： LUO, Sifen ,  XU, Zhan ,  CHEN, Changli ,  LI, Haitao ,  CHANG, Heng-Chia ,  WANG, Narisi ,  YOON, Jung Ho

IPC: H03F3/04 ,  H03F3/191 ,  H03F3/42

CPC classification number: H03F3/213 ,  H03F1/0205 ,  H03F1/0261 ,  H03F1/223 ,  H03F1/3205 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/451

Abstract: A current mirror circuit for biasing a power amplifier includes a modified Wilson current mirror with a pair of first and second mirror transistors connected to a third transistor. The first mirror transistor is configured for operating in a saturation mode, with a gate voltage of the first mirror transistor being lower than a gate voltage of the power amplifier. The third transistor charges the power amplifier circuit during a positive half cycle of an input signal and the first mirror transistor discharges the power amplifier circuit during a negative half cycle of the input signal at different rates.

Abstract translation: 用于偏置功率放大器的电流镜电路包括修改的威尔逊电流镜，其具有连接到第三晶体管的一对第一和第二反射镜晶体管。 第一镜晶体管被配置为在饱和模式下工作，其中第一镜晶体管的栅极电压低于功率放大器的栅极电压。 第三晶体管在输入信号的正半周期期间对功率放大器电路进行充电，并且第一反射镜晶体管在输入信号的负半周期内以不同的速率放电功率放大器电路。

公开(公告)号：WO2006086924A1

公开(公告)日：2006-08-24

申请号：PCT/CN2006/000127

申请日：2006-02-16

Applicant: TUBE AMP SDN. BHD. ,  TUBE AMP LIMITED ,  WONG, Pak, Koon ,  LAU, Ming, Ing

Inventor： WONG, Pak, Koon ,  LAU, Ming, Ing

IPC: H03F3/42

CPC classification number: H03F3/30 ,  H03F1/0211 ,  H03F1/20 ,  H03F1/34 ,  H03F1/52 ,  H03F3/02 ,  H03F3/181 ,  H03F3/21 ,  H03F3/3033 ,  H03F3/42 ,  H03F2200/03 ,  H03F2200/549

Abstract: There is disclosed an apparatus for amplification comprises of a front-end input stage (110) having a driver module (120), multi-feedback port (102), a phase inversion stage (130) with improved signal coupling, distributed negative feedback (300) and an output stage (150) with asymmetry output device. The apparatus also includes a balanced equalization method using negative feedback where the output stage providing negative multiple feedback together with predetermined output impedance, separated bias control and signal drive for each of the output device. Power supply (250) is implemented having dual power transformer (230) which provides compensated bias for the output device. In the preferred embodiment, the apparatus also includes means to increase slew rate, means for providing distributed negative feedback to reduce phase shift, means to bootstrap upper output device, means for differential adjustment for feedback, means to drive high voltage and current drive signal. Short circuit protection for speaker, means to minimize lethal DC output at output terminal, means for obtaining suitable high tension voltage and bias circuit and output stage having all devices separately fused to provide indication of faulty output device are also disclosed.

Abstract translation: 公开了一种用于放大的装置，包括具有驱动器模块（120）的前端输入级（110），多反馈端口（102），具有改进的信号耦合的相位反转级（130），分布式负反馈 300）和具有不对称输出装置的输出级（150）。 该装置还包括使用负反馈的平衡均衡方法，其中输出级提供负多重反馈以及每个输出装置的预定输出阻抗，分离的偏置控制和信号驱动。 电源（250）实现了具有为输出设备提供补偿偏置的双电源变压器（230）。 在优选实施例中，该装置还包括增加压摆率的装置，用于提供分布式负反馈以减少相移的装置，用于自举上输出装置的装置，用于反馈的差分调整装置，驱动高电压和电流驱动信号的装置。 扬声器的短路保护，意味着最小化输出端子处的致死直流输出，用于获得合适的高压电压和偏置电路的装置以及具有单独熔断的所有装置的输出级以提供故障输出装置的指示。

公开(公告)号：WO2003079547A3

公开(公告)日：2003-09-25

申请号：PCT/US2003/007157

申请日：2003-03-10

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY ,  KOMIJANI, Abbas ,  HAJIMIRI, Seyed-Ali ,  KEE, Scott, D. ,  AOKI, Ichiro

Inventor： KOMIJANI, Abbas ,  HAJIMIRI, Seyed-Ali ,  KEE, Scott, D. ,  AOKI, Ichiro

IPC: H03F3/42

Abstract: Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynamically to control the output power levels, allow operation at multiple frequency bands, maintain a high performance across multiple channels, and sustain desired characteristics across process, temperature and other environmental variations. Integration of the distributed active transformer power amplifiers and a low noise amplifier on a semiconductor substrate can also be provided.

公开(公告)号：WO2020106537A1

公开(公告)日：2020-05-28

申请号：PCT/US2019/061371

申请日：2019-11-14

Applicant: CREE, INC.

Inventor： LIU, Yueying ,  SRIRAM, Saptharishi ,  SHEPPARD, Scott ,  GAO, Jennifer

IPC: H03F1/32 ,  H03F3/195 ,  H03F3/21 ,  H03F1/02 ,  H03F3/42 ,  H01L27/085 ,  H01L29/423 ,  H01L29/778 ,  H01L29/20

Abstract: A semiconductor device includes a plurality of unit cell transistors on a common semiconductor structure, the unit cell transistors electrically connected in parallel, and each unit cell transistor including a respective gate finger. Respective threshold voltages of first and second of the unit cell transistors differ by at least 0.1 volts and/or threshold voltages of first and second segments of a third of the unit cell transistors differ by at least 0.1 volts.

公开(公告)号：WO2019231913A1

公开(公告)日：2019-12-05

申请号：PCT/US2019/034176

申请日：2019-05-28

Applicant: TEXAS INSTRUMENTS INCORPORATED ,  TEXAS INSTRUMENTS JAPAN LIMITED

Inventor： FINN, Steven, Ernest

IPC: H03F3/42

Abstract: In a circuit (100), a first transistor (M1) includes a first control input and first and second current terminals. The first control input is coupled to receive a first input control signal, and the first current terminal is coupled to a first power supply node (105). The circuit (100) also includes a first resistor (R1) coupled to the first control input of the first transistor (M1), a first capacitor (C1) coupled between the second current terminal of the first transistor (M1) and the first resistor (R1), and a second transistor (M2). The second transistor (M2) includes a second control input and third and fourth current terminals. The third current terminal is coupled to the first resistor (R1) and to the first capacitor (C1).

公开(公告)号：WO2011006549A1

公开(公告)日：2011-01-20

申请号：PCT/EP2010/000111

申请日：2010-01-12

Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB ,  KÖRNER, Hans, Peter

Inventor： KÖRNER, Hans, Peter

IPC: H03F1/22 ,  H03F3/183 ,  H03F3/19 ,  H03F3/42

CPC classification number: H03F3/42 ,  H03F1/14 ,  H03F1/22 ,  H03F3/183 ,  H03F3/19 ,  H03F3/423 ,  H03F3/426 ,  H03F2200/03 ,  H03F2200/552

Abstract: An amplifier stage (300) for generating an amplified output signal from an input signal, a mobile device comprising an audio amplifier, and an amplification method for generating an amplified output signal from an input signal using an amplifier stage (300) are described.

Abstract translation: 描述了用于从输入信号产生放大的输出信号的放大器级（300），包括音频放大器的移动设备和用于使用放大器级（300）从输入信号产生放大的输出信号的放大方法。