公开(公告)号：WO2017083003A1

公开(公告)日：2017-05-18

申请号：PCT/US2016/051506

申请日：2016-09-13

Applicant: QUALCOMM INCORPORATED

Inventor： CHAMAS, Ibrahim

IPC: H03F1/08 ,  H03F1/32 ,  H03F1/34 ,  H03F3/45 ,  H03F3/195

CPC classification number: H03H11/1213 ,  H03F1/08 ,  H03F1/3205 ,  H03F1/3241 ,  H03F1/342 ,  H03F3/19 ,  H03F3/195 ,  H03F3/211 ,  H03F3/45076 ,  H03F3/45659 ,  H03F2200/144 ,  H03F2200/171 ,  H03F2200/237 ,  H03F2200/24 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/72 ,  H03F2200/75 ,  H03F2200/91 ,  H03F2203/21106 ,  H03F2203/21115 ,  H03F2203/21157 ,  H03F2203/45002 ,  H03F2203/45004 ,  H03F2203/45126 ,  H03F2203/45154 ,  H03H11/126 ,  H03M1/66

Abstract: Exemplary embodiments of the present disclosure are related to baseband filters. A device may include a digital-to-analog converter (DAC) configured to output a DC current. The device may also include an operational amplifier coupled to an output of the DAC and configured to bias an input stage of the operational amplifier with the DC current.

Abstract translation: 本公开的示例性实施例涉及基带滤波器。 器件可以包括被配置为输出DC电流的数字 - 模拟转换器（DAC）。 该器件还可以包括运算放大器，该运算放大器耦合到DAC的输出并且被配置为用DC电流偏置运算放大器的输入级。

公开(公告)号：WO2017039466A1

公开(公告)日：2017-03-09

申请号：PCT/PL2015/050036

申请日：2015-09-03

Applicant: UNIWERSYTET JAGIELLOŃSKI

Inventor： PELCZAR, Krzysztof

IPC: H03F3/70 ,  G01T1/17

CPC classification number: H03F3/70 ,  H01J2237/2441 ,  H03F3/45475 ,  H03F2200/129 ,  H03F2200/144 ,  H03F2200/261 ,  H03F2200/264 ,  H03F2200/294 ,  H03F2200/75 ,  H03F2200/91 ,  H03F2203/45136 ,  H03F2203/45174 ,  H03F2203/45512 ,  H03F2203/45522 ,  H03F2203/45524 ,  H03F2203/45526 ,  H03F2203/45528

Abstract: The present invention relates to the resistorless charge sensitive preamplifier system for amplifying charge delivered by a particle detector (Ge), comprising: a field effect transistor (T1) having a gate, source and drain, the gate being connectable to the particle detector (Ge), for the receipt a signal from particle detector (Ge); an amplifier (OA) having an input connected to the drain or source of the field effect transistor (T1) and an output connected through a feedback capacitor (CF) to the gate of the field effect transistor (T1), in which system further comprising low frequency feedback realized with a field effect transistor (T2) having gate shorted with gate of field effect transistor (T1).

Abstract translation: 本发明涉及用于放大由粒子检测器（Ge）传送的电荷的无电阻电荷敏感性前置放大器系统，包括：具有栅极，源极和漏极的场效应晶体管（T1），栅极可连接到粒子检测器 ），用于接收来自粒子检测器（Ge）的信号; 具有连接到场效应晶体管（T1）的漏极或源极的输入端的放大器（OA）和通过反馈电容器（CF）连接到场效应晶体管（T1）的栅极的输出，其中系统还包括 利用场效应晶体管（T1）栅极短路的场效应晶体管（T2）实现的低频反馈。

公开(公告)号：WO2009139814A2

公开(公告)日：2009-11-19

申请号：PCT/US2009002331

申请日：2009-04-14

Applicant: HITTITE MICROWAVE CORP ,  BENSON KEITH

Inventor： BENSON KEITH

IPC: H03F3/213

CPC classification number: H03F3/607 ,  H03F1/223 ,  H03F1/342 ,  H03F2200/144

Abstract: A distributed amplifier system has a predetermined output impedance and input impedance and includes an input transmission circuit; an output transmission circuit; at least two amplifiers connected between the input and output transmission circuits; an input termination on the input transmission circuit; and a feedback output termination on the output transmission circuit connected back to the input transmission circuit for reducing low frequency loss while maintaining the predetermined output impedance and input impedance.

Abstract translation: 分布式放大器系统具有预定的输出阻抗和输入阻抗，并且包括输入传输电路; 输出传输电路; 连接在输入和输出传输电路之间的至少两个放大器; 输入传输电路上的输入终端; 以及在输出传输电路上连接到输入传输电路上的反馈输出端接，用于降低低频损耗，同时保持预定的输出阻抗和输入阻抗。

公开(公告)号：WO2009034659A1

公开(公告)日：2009-03-19

申请号：PCT/JP2007/068487

申请日：2007-09-14

Applicant: FUJITSU LIMITED ,  KOBAYASHI, Kazuhiko ,  WATANABE, Yuu ,  DAL, FABBRO, Paulo, Augusto ,  KAYAL, Maher

Inventor： KOBAYASHI, Kazuhiko ,  WATANABE, Yuu ,  DAL, FABBRO, Paulo, Augusto ,  KAYAL, Maher

IPC: H03H7/38 ,  H03F1/56 ,  H03F3/189 ,  H03H11/28

CPC classification number: H03F1/565 ,  H03F3/195 ,  H03F2200/144 ,  H03F2200/222 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/541 ,  H03H7/38 ,  H03H11/40

Abstract: The tunable impedance circuit comprises capacitors C1 and C2, an inductor L1, and an inductor L2 magnetically coupled with the inductor L1. The control current Icontrol with variable phase and amplitude from the control circuit 13 flows in the inductor L2. The impedance of the inductor L1 is changed by changing the phase and amplitude of the control current Icontrol. The output impedance is set to an optimum level by setting an effective inductance and an effective quality factor of the tunable impedance circuit 12a to be optimum by means of the phase and amplitude of the control current Icontrol relative to output current IRF of RF PA 11.

Abstract translation: 可调谐阻抗电路包括电容器C1和C2，电感器L1和与电感器L1磁耦合的电感器L2。 来自控制电路13的具有可变相位和振幅的控制电流Icontrol在电感器L2中流动。 通过改变控制电流Icontrol的相位和幅度来改变电感L1的阻抗。 通过将控制电流Icontrol的相位和幅度相对于RF PA11的输出电流IRF设置为可调谐阻抗电路12a的有效电感和有效质量因子来将输出阻抗设置为最佳电平。

公开(公告)号：WO2019081422A1

公开(公告)日：2019-05-02

申请号：PCT/EP2018/078878

申请日：2018-10-22

Applicant: AMS INTERNATIONAL AG

Inventor： STEINER, Matthias ,  FRÖHLICH, Thomas

IPC: H03F1/34 ,  H03F3/181 ,  H03F3/45 ,  H03F3/70 ,  H03M3/00 ,  H03M1/78

CPC classification number: H03M3/464 ,  H03F1/34 ,  H03F3/181 ,  H03F3/45475 ,  H03F3/45941 ,  H03F3/70 ,  H03F2200/03 ,  H03F2200/129 ,  H03F2200/144 ,  H03M1/785 ,  H04R19/005 ,  H04R19/04 ,  H04R2410/03

Abstract: A sensor arrangement comprises a sensor (1) having a first terminal (3) and a second terminal (5), and an amplifier (9) having an amplifier input (11) for applying an input signal and an amplifier output (13) for providing an amplified input signal, the amplifier input (11) being coupled to the second terminal (5). The sensor arrangement further comprises a quantizer (25) having a quantizer input and a quantizer output being suitable for providing a multi-level output signal on the basis of the amplified input signal and a feedback circuit having a feedback circuit input coupled to the quantizer output and a feedback circuit output (HVBIAS) coupled to the first terminal (3). The feedback circuit comprises an digital-to-analog converter (27, 29) being suitable for generating an analog signal on the basis of the multi-level output signal, the analog signal being the basis of a feedback signal provided at the feedback circuit output (HVBIAS). The feedback circuit further comprises a feedback capacitor (31) that is coupled between the feedback circuit output (HVBIAS) and an output of the digital-to-analog converter (27, 29), and a voltage source (35) coupled to the feedback circuit output (HVBIAS).

公开(公告)号：WO2017102572A1

公开(公告)日：2017-06-22

申请号：PCT/EP2016/080372

申请日：2016-12-09

Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.

Inventor： LAMESCH, Laurent

IPC: G01R27/26 ,  G01D5/24 ,  G01R27/14 ,  H03F3/45 ,  H03F3/38

CPC classification number: H03F3/45475 ,  B60R21/01532 ,  G01R27/14 ,  H03F3/38 ,  H03F2200/129 ,  H03F2200/135 ,  H03F2200/144 ,  H03F2200/261 ,  H03F2200/264 ,  H03F2200/321 ,  H03F2200/336 ,  H03F2200/393 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2203/45114 ,  H03F2203/45116 ,  H03F2203/45138 ,  H03F2203/45151 ,  H03F2203/45174 ,  H03F2203/45224 ,  H03F2203/45276 ,  H03F2203/45512 ,  H03F2203/45521 ,  H03F2203/45528 ,  H03F2203/45594

Abstract: An impedance measurement circuit (22) for determining a sense current of a guard-sense capacitive sensor (20) operated in loading mode, includes a periodic signal voltage source (38) for providing a periodic measurement voltage, a sense current measurement circuit (42), a differential amplifier (44) that is configured to sense a complex voltage difference between the sense electrode and the guard electrode, demodulation means for obtaining, with reference to the periodic measurement voltage, an in-phase component and a quadrature component of the sensed complex voltage difference, control loops (50, 56) for receiving the in-phase component and the quadrature component, respectively, wherein an output signal of the first control loop (50) and an output signal of the second control loop (56) are usable to form a complex voltage that serves as a complex reference voltage for the sense current measurement circuit (42).

Abstract translation: 用于确定在加载模式下操作的保护 - 感测电容性传感器（20）的感测电流的阻抗测量电路（22）包括用于提供周期性测量电压（38）的周期性信号电压源（38） ，感测电流测量电路（42），被配置为感测所述感测电极与所述保护电极之间的复电压差的差分放大器（44），解调装置，用于参考所述周期性测量电压， （50,56），用于分别接收同相分量和正交分量，其中第一控制回路（50）的输出信号和输出信号 第二控制回路（56）的输出电压可用于形成用作感测电流测量电路（42）的复合基准电压的复合电压。

公开(公告)号：WO2012156947A1

公开(公告)日：2012-11-22

申请号：PCT/IB2012/052500

申请日：2012-05-18

Applicant: RENESAS MOBILE CORPORATION ,  HEIKKINEN, Jari Johannes ,  RIEKKI, Jonne Juhani ,  KAUKOVUORI, Jouni Kristian

Inventor： HEIKKINEN, Jari Johannes ,  RIEKKI, Jonne Juhani ,  KAUKOVUORI, Jouni Kristian

IPC: H03F3/195 ,  H03F1/02 ,  H03F1/22 ,  H03F1/26 ,  H03F1/30 ,  H03F1/56 ,  H03F3/45 ,  H03F3/72

CPC classification number: H03F3/195 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/26 ,  H03F1/301 ,  H03F1/565 ,  H03F3/45179 ,  H03F3/45645 ,  H03F3/72 ,  H03F2200/135 ,  H03F2200/144 ,  H03F2200/156 ,  H03F2200/159 ,  H03F2200/165 ,  H03F2200/181 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/39 ,  H03F2200/447 ,  H03F2200/451 ,  H03F2203/45154 ,  H03F2203/45194 ,  H03F2203/45196 ,  H03F2203/45286 ,  H03F2203/45386 ,  H03F2203/45394 ,  H03F2203/45396 ,  H03F2203/45424 ,  H03F2203/45434 ,  H03F2203/45528 ,  H03F2203/45534 ,  H03F2203/45536 ,  H03F2203/45554 ,  H03F2203/45576 ,  H03F2203/45596 ,  H03F2203/45618 ,  H03F2203/45628 ,  H03F2203/45641 ,  H03F2203/45652 ,  H03F2203/45682 ,  H03F2203/45692 ,  H03F2203/45704 ,  H03F2203/7203 ,  H03F2203/7209 ,  H03F2203/7233 ,  H03F2203/7236

Abstract: The invention relates to a configurable low noise amplifier circuit comprising a gain stage coupled to the input of the low noise amplifier circuit, the low noise amplifier circuit being configurable between one of a first topology in which the low noise amplifier circuit comprises a degeneration inductance whereby the low noise amplifier circuit operates as an inductively degenerated low noise amplifier, and a second topology in which the low noise amplifier circuit comprises an impedance matching stage coupled to an input of the configurable low noise amplifier circuit, the output of the impedance matching stage providing an input bias voltage for the impedance matching stage, and a feedback stage coupled to an output of the impedance matching stage and a voltage source, the feedback stage providing a compensated operating voltage for the impedance matching stage.

Abstract translation: 本发明涉及一种可配置的低噪声放大器电路，其包括耦合到低噪声放大器电路的输入的增益级，低噪声放大器电路可配置在第一拓扑中的一个之间，其中低噪声放大器电路包括退化电感，由此 低噪声放大器电路作为电感退化低噪声放大器工作，第二拓扑结构，其中低噪声放大器电路包括耦合到可配置低噪声放大器电路的输入的阻抗匹配级，阻抗匹配级的输出提供 用于阻抗匹配级的输入偏置电压，以及耦合到阻抗匹配级的输出端和电压源的反馈级，反馈级为阻抗匹配级提供经补偿的工作电压。

公开(公告)号：WO2011029492A1

公开(公告)日：2011-03-17

申请号：PCT/EP2010/003871

申请日：2010-06-23

Applicant: MEDIATEK SINGAPORE PTE. LTD. ,  BEFFA, Federico Alessandro Fabrizio

Inventor： BEFFA, Federico Alessandro Fabrizio

IPC: H03F1/34

CPC classification number: H03F1/342 ,  H03F1/223 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/141 ,  H03F2200/144

Abstract: An amplifier circuit for amplifying an input signal received at an input node of the amplifier circuit. The amplifier circuit comprises a feedback resistance connected between the input node of the amplifier circuit and an output node of the amplifier circuit. Transconductance circuitry is arranged to inject a transconductance current at a point along the feedback resistance. The transconductance circuitry is configurable to vary the point along the feedback resistance where the transconductance current is injected.

Abstract translation: 一种用于放大在放大器电路的输入节点处接收的输入信号的放大器电路。 放大器电路包括连接在放大器电路的输入节点和放大器电路的输出节点之间的反馈电阻。 跨导电路被布置成在沿着反馈电阻的点处注入跨导电流。 跨导电路可配置为沿着跨导电流注入的反馈电阻改变点。

公开(公告)号：WO2009037625A3

公开(公告)日：2009-07-23

申请号：PCT/IB2008053721

申请日：2008-09-15

Applicant: NXP BV ,  BOUHAMAME MOHAMED ,  LOCOCO LUCA ,  ROBERT SEBASTIEN

Inventor： BOUHAMAME MOHAMED ,  LOCOCO LUCA ,  ROBERT SEBASTIEN

IPC: H03H11/12 ,  H03F1/34 ,  H03F3/195 ,  H03F3/50

CPC classification number: H03F3/50 ,  H03F1/26 ,  H03F1/32 ,  H03F1/34 ,  H03F1/56 ,  H03F3/195 ,  H03F3/45475 ,  H03F2200/144 ,  H03F2200/213 ,  H03F2200/378 ,  H03F2200/408 ,  H03F2200/411 ,  H03F2200/435 ,  H03F2200/451 ,  H03F2203/45136 ,  H03F2203/45522 ,  H03F2203/5006 ,  H03F2203/5021 ,  H03F2203/5024 ,  H03F2203/5031 ,  H03F2203/5036 ,  H03F2203/5039 ,  H03G5/14 ,  H03H11/1213 ,  H03H11/1291

Abstract: A tunable RF filter, comprising: an emitter follower stage (2); and a common emitter stage (4); the common emitter stage (4) providing feedback to the emitter follower stage (2). The common emitter stage (4) may comprise a first transistor (Ti) being the only transistor of the common emitter stage (4); and the emitter follower stage (2) may comprise a second transistor (T2) being the only transistor of the emitter follower stage (2). A further tunable RF filter provides improved linearity, comprising: an emitter follower stage (22); a joint common emitter and emitter follower stage (24); and a gain stage (26); a common emitter output of the joint common emitter and emitter follower stage (24) providing feedback to the emitter follower stage (22), and an emitter follower output of the joint common emitter and emitter follower stage (24) providing an input to the gain stage (26).

Abstract translation: 一种可调谐RF滤波器，包括：射极跟随器级（2）; 和共同发射极级（4）; 所述公共发射极级（4）向所述射极跟随器级（2）提供反馈。 公共发射极级（4）可以包括作为公共发射极级（4）的唯一晶体管的第一晶体管（Ti）。 并且射极跟随器级（2）可以包括作为射极跟随器级（2）的唯一晶体管的第二晶体管（T2）。 另一可调谐RF滤波器提供改进的线性度，包括：射极跟随器级（22）; 共同的发射极和射极跟随器级（24）; 和增益阶段（26）; 联合共发射极和射极跟随器级（24）的共发射极输出，为射极跟随器级（22）提供反馈，以及联合公共发射极和射极跟随器级（24）的射极跟随器输出，为增益提供输入 阶段（26）。

公开(公告)号：WO2006109214A1

公开(公告)日：2006-10-19

申请号：PCT/IB2006/051033

申请日：2006-04-04

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  SANDULEANU, Mihai, A., T. ,  STIKVOORT, Eduard, F.

Inventor： SANDULEANU, Mihai, A., T. ,  STIKVOORT, Eduard, F.

IPC: H03F3/195 ,  H03F3/347 ,  H03F3/343 ,  H03F1/34 ,  H03G3/30

CPC classification number: H03F3/3432 ,  H03F1/34 ,  H03F3/195 ,  H03F3/347 ,  H03F2200/09 ,  H03F2200/144 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372

Abstract: A broadband amplifier (2) for receiving radio frequency signals from an antenna (4) is disclosed. The amplifier comprises a first amplifier stage (6) for receiving an input voltage signal, and a first feedback stage (12) for providing a feedback link between an input and an output of the first amplifier stage (6). A second amplifier stage (10) is connected to an output of the first amplifier stage (6) and a second feedback stage (16) provides a feedback link from an output of the second amplifier stage to an input of the first amplifier stage. An output voltage signal is provided at an output terminal (22) of an output stage (20).

Abstract translation: 公开了一种用于从天线（4）接收射频信号的宽带放大器（2）。 放大器包括用于接收输入电压信号的第一放大级（6）和用于在第一放大级（6）的输入和输出之间提供反馈链路的第一反馈级（12）。 第二放大器级（10）连接到第一放大器级（6）的输出，第二反馈级（16）提供从第二放大器级的输出到第一放大级的输入的反馈链路。 在输出级（20）的输出端（22）处提供输出电压信号。