公开(公告)号：US20180083579A1

公开(公告)日：2018-03-22

申请号：US15272103

申请日：2016-09-21

申请人： Peregrine Semiconductor Corporation

发明人： Hossein Noori ,  Chih-Chieh Cheng

IPC分类号： H03F1/32 ,  H03F1/56 ,  H03F3/195 ,  H03G3/00 ,  H03G3/10

CPC分类号： H03F1/3205 ,  H03F1/56 ,  H03F3/195 ,  H03F3/72 ,  H03F2200/18 ,  H03F2200/21 ,  H03F2200/211 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2200/225 ,  H03F2200/24 ,  H03F2200/243 ,  H03F2200/249 ,  H03F2200/27 ,  H03F2200/294 ,  H03F2200/297 ,  H03F2200/301 ,  H03F2200/306 ,  H03F2200/312 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/48 ,  H03F2200/489 ,  H03F2200/492 ,  H03F2200/495 ,  H03F2200/546 ,  H03F2200/72 ,  H03F2200/75 ,  H03G1/0029 ,  H03G1/0088 ,  H03G1/0094 ,  H03G3/001 ,  H03G3/008 ,  H03G3/10 ,  H03G2201/106 ,  H03G2201/307 ,  H03G2201/504

摘要： A receiver front end capable of receiving and processing intraband non-contiguous carrier aggregate (CA) signals using multiple low noise amplifiers (LNAs) is disclosed herein. A cascode having a “common source” input stage and a “common gate” output stage can be turned on or off using the gate of the output stage. A first switch is provided that allows a connection to be either established or broken between the source terminal of the input stage of each cascode. Further switches used for switching degeneration inductors, gate/sources caps and gate to ground caps for each legs can be used to further improve the matching performance of the invention.

公开(公告)号：US09543907B2

公开(公告)日：2017-01-10

申请号：US14605877

申请日：2015-01-26

申请人： Electronics and Telecommunications Research Institute

发明人： Young-deuk Jeon ,  Jung Hee Suk ,  Chun-Gi Lyuh ,  Yi-Gyeong Kim ,  Jong Pil Im ,  Min-Hyung Cho

IPC分类号： H03F3/08 ,  H03G3/00 ,  H03F3/45 ,  H03M1/12

CPC分类号： H03F3/082 ,  H03F3/087 ,  H03F3/45475 ,  H03F2203/45088 ,  H03F2203/45514 ,  H03F2203/45551 ,  H03F2203/45614 ,  H03G3/008 ,  H03M1/121

摘要： Provided is a current-voltage conversion amplifier circuit including: a plurality of light receiving devices generating a current signal proportional to an amount of light by receiving the light; multipliers amplifying the current signal, converting the amplified current signal into a first voltage signal, outputting the amplified current signal, or outputting the converted first voltage signal; multi input amplifiers outputting first and second output voltage pairs through a process for receiving output values of multipliers and an offset voltage and amplifying the received output values and offset voltage; a multiplexing unit selecting and outputting one first and second output voltage pair among the first and second output voltage pairs outputted from multi input amplifiers; and a signal conversion unit converting a difference value between first and second output voltages outputted from the multiplexing unit and outputting the converted digital signal.

摘要翻译： 提供了一种电流 - 电压转换放大器电路，包括：多个光接收装置，通过接收光产生与光量成比例的电流信号; 放大电流信号的乘法器，将放大的电流信号转换成第一电压信号，输出放大的电流信号或输出转换的第一电压信号; 多输入放大器，通过用于接收乘法器的输出值和偏移电压的过程输出第一和第二输出电压对，并放大所接收的输出值和失调电压; 多路复用单元，从多输入放大器输出的第一和第二输出电压对中选择并输出一个第一和第二输出电压对; 以及信号转换单元，转换从多路复用单元输出的第一和第二输出电压之间的差值，并输出转换的数字信号。

公开(公告)号：US09035700B2

公开(公告)日：2015-05-19

申请号：US14131819

申请日：2012-12-05

申请人： Panasonic Corporation

发明人： Ryo Kitamura

IPC分类号： H03G3/00 ,  H03F3/193 ,  H03G9/14 ,  H03F1/56 ,  H03F3/45

CPC分类号： H03F3/193 ,  H03F1/56 ,  H03F3/45179 ,  H03F2203/45394 ,  H03G3/008 ,  H03G9/14

摘要： A variable gain amplifier (100) includes a transistor (110), an FB impedance section (120), a source impedance section (130), a drain impedance section (140), a gain controller (150), and a frequency characteristic controller (160). The gain controller (150) varies impedance of one of the FB impedance section (140), the source impedance section (130), and the drain impedance section (140), and outputs a gain control signal. The frequency characteristic controller (160) varies the impedance of different impedance section, based on the gain control signal.

摘要翻译： 可变增益放大器（100）包括晶体管（110），FB阻抗部分（120），源极阻抗部分（130），漏极阻抗部分（140），增益控制器（150）和频率特性控制器 （160）。 增益控制器（150）改变FB阻抗部分（140），源极阻抗部分（130）和漏极阻抗部分（140）中的一个的阻抗，并输出增益控制信号。 频率特性控制器（160）基于增益控制信号改变不同阻抗部分的阻抗。

公开(公告)号：US20140266454A1

公开(公告)日：2014-09-18

申请号：US13839462

申请日：2013-03-15

申请人： INNOPHASE, INC.

发明人： Nicolo Testi ,  Xi Li ,  Xuejun Zhang ,  Yang Xu

IPC分类号： H03G3/00

CPC分类号： H03G3/008 ,  H03G1/0029 ,  H03G1/0088 ,  H03G5/14 ,  H03G5/24

摘要： A low noise amplifier including a variable gain amplifier stage configured to accept an input signal and to provide a load driving signal; a tunable bandpass filter connected as a load to the variable gain amplifier stage, wherein the bandpass filter includes a cross-coupled transistor pair, and at least one cross-coupled compensation transistor pair biased in a subthreshold region configured to add a transconductance component when the load driving signal is of a magnitude large enough to decreases a transconductance of the cross-coupled transistor pair; and, a controller circuit configured to tune the bandpass filter. The filter can be tuned in respect to the frequency and the quality factor Q.

摘要翻译： 一种低噪声放大器，包括可变增益放大器级，其被配置为接受输入信号并提供负载驱动信号; 作为负载连接到可变增益放大器级的可调谐带通滤波器，其中所述带通滤波器包括交叉耦合晶体管对，以及偏置在亚阈值区域中的至少一个交叉耦合补偿晶体管对，其配置成当所述跨导分量 负载驱动信号的幅度足够大以减小交叉耦合晶体管对的跨导; 以及配置为调谐带通滤波器的控制器电路。 滤波器可以根据频率和质量因子Q进行调整。

公开(公告)号：US07215202B2

公开(公告)日：2007-05-08

申请号：US11065859

申请日：2005-02-25

申请人： Mohammad A. Al-Shyoukh ,  Alexander Teutsch

发明人： Mohammad A. Al-Shyoukh ,  Alexander Teutsch

IPC分类号： H03G3/30

CPC分类号： H03G3/008 ,  H03G1/0088 ,  H03G3/3036

摘要： One embodiment of the present invention may include a programmable gain amplifier comprising an input multiplexer operative to sequentially select input signals for amplification. The input signals may be chosen from a plurality of input signals based on a selection signal. The programmable gain amplifier may include at least one amplifier gain stage operative to apply a variable gain amount to a selected input signal. The programmable gain amplifier may further include a gain mapping component that controls the variable gain amount for each of the selected input signals.

摘要翻译： 本发明的一个实施例可以包括可编程增益放大器，该可编程增益放大器包括输入多路复用器，用于顺序地选择用于放大的输入信号。 可以基于选择信号从多个输入信号中选择输入信号。 可编程增益放大器可以包括至少一个放大器增益级，用于将可变增益量应用于所选择的输入信号。 可编程增益放大器还可以包括增益映射分量，其控制每个所选输入信号的可变增益量。

公开(公告)号：US20180331672A1

公开(公告)日：2018-11-15

申请号：US15978894

申请日：2018-05-14

申请人： STMicroelectronics SA

发明人： Renald Boulestin

IPC分类号： H03H11/24 ,  H03F3/19 ,  H03G3/30 ,  H04B1/40

CPC分类号： H03H11/245 ,  H03F3/19 ,  H03F2200/451 ,  H03G1/0088 ,  H03G3/001 ,  H03G3/008 ,  H03G3/3036 ,  H03G2201/307 ,  H03H7/24 ,  H04B1/40

摘要： An embodiment attenuator includes a plurality of circuits coupled in series. A respective circuit includes a first capacitor connected between an input node of the respective circuit and an output node of the respective circuit, and a second capacitor connected between the output node of the respective circuit and a reference node. The output node of the respective circuit, other than a last circuit of the plurality of circuits, is connected to the input node of a successive circuit. The attenuator further includes a plurality of selectors, in which the respective circuit is associated with a respective selector that is coupled between the output node of the respective circuit and an output node of the attenuator.

公开(公告)号：US09735748B2

公开(公告)日：2017-08-15

申请号：US14969008

申请日：2015-12-15

申请人： Silicon Laboratories Inc.

发明人： Mark May ,  Steve Hanawalt

IPC分类号： H04B1/06 ,  H03G3/30 ,  H04B1/12 ,  H04B1/10 ,  H03G3/00 ,  H03F3/19

CPC分类号： H03G3/3036 ,  H03F3/19 ,  H03F2200/294 ,  H03F2200/451 ,  H03G3/008 ,  H03G3/3068 ,  H04B1/109 ,  H04B1/123

摘要： An apparatus includes an input terminal to receive a radio frequency (RF) signal and to communicate the RF signal to a low noise amplifier (LNA) via an input signal path, and a capacitor attenuator coupled to the input terminal to attenuate the RF signal by a controllable amount and having a first portion controllable to include a used part configured on the input signal path and an unused part coupled between the input signal path and an AC reference node, and a second portion coupled between the LNA and the AC reference node.

公开(公告)号：US09407222B2

公开(公告)日：2016-08-02

申请号：US14396514

申请日：2014-02-26

申请人： PANASONIC CORPORATION

发明人： Masaki Kanemaru

IPC分类号： H03G3/00 ,  H03F3/00 ,  H03F3/193 ,  H03G3/30 ,  H03F1/56 ,  H03F3/24 ,  H03F3/60

CPC分类号： H03G3/008 ,  H03F1/565 ,  H03F3/005 ,  H03F3/193 ,  H03F3/245 ,  H03F3/601 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/408 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03G3/3052

摘要： A variable matching circuit includes a transformer which is disposed between first and second transistor circuits. A primary inductor device and a secondary inductor device are magnetically coupled in the transformer. The primary inductor device is connected between an output terminal of the first transistor circuit and a bias circuit for the first transistor circuit. The secondary inductor device is connected between an input terminal of the second transistor circuit and a bias circuit for the second transistor circuit. Connection points between the primary inductor device and the bias circuit for the first transistor circuit and between the secondary inductor device and the bias circuit for the second transistor circuit are connected to first and second capacitive elements, respectively. At least one of inductance values of the respective primary and secondary inductor devices and capacitance values of the respective first and second capacitive elements is variable.

摘要翻译： 可变匹配电路包括设置在第一和第二晶体管电路之间的变压器。 主电感器件和次级电感器件磁耦合在变压器中。 主电感器件连接在第一晶体管电路的输出端和第一晶体管电路的偏置电路之间。 次级电感器件连接在第二晶体管电路的输入端和第二晶体管电路的偏置电路之间。 初级电感器件和第一晶体管电路的偏置电路之间以及次级电感器件和第二晶体管电路的偏置电路之间的连接点分别连接到第一和第二电容元件。 相应的初级和次级电感器件的电感值和相应的第一和第二电容元件的电容值中的至少一个是可变的。

公开(公告)号：US09214912B2

公开(公告)日：2015-12-15

申请号：US14684023

申请日：2015-04-10

申请人： Massachusetts Institute of Technology

发明人： Hae-Seung Lee

IPC分类号： H03M1/36 ,  H03G3/00 ,  H03F3/00 ,  H03F3/45 ,  H03M1/12

CPC分类号： H03G3/008 ,  H03F3/005 ,  H03F3/45179 ,  H03F2200/129 ,  H03F2203/45156 ,  H03M1/124 ,  H03M1/1245 ,  H03M1/362

摘要： Switched capacitor circuits and charge transfer methods include a sampling phase and a transfer phase. Circuits and methods are implemented via a plurality of switches, a set of at least two capacitors, at least one buffer amplifier, and an operational amplifier. In one example, during the sampling phase at least one input voltage is sampled, and during the transfer phase at least a first reference voltage provided by the at least one buffer amplifier is subtracted from the at least one input voltage using the operational amplifier. The same set of at least two capacitors may be used in both the sampling phase and the transfer phase.

摘要翻译： 开关电容器电路和电荷转移方法包括采样阶段和转移阶段。 电路和方法通过多个开关，一组至少两个电容器，至少一个缓冲放大器和运算放大器来实现。 在一个示例中，在采样阶段期间对至少一个输入电压进行采样，并且在传送阶段期间，使用运算放大器从至少一个输入电压减去由至少一个缓冲放大器提供的至少第一参考电压。 在采样阶段和转移阶段都可以使用同一组至少两个电容器。

公开(公告)号：US08963644B2

公开(公告)日：2015-02-24

申请号：US13849787

申请日：2013-03-25

申请人： Mitsubishi Electric Research Laboratories, Inc.

发明人： Rui Ma ,  Sushmit Goswami ,  Koon Hoo Teo ,  Chunjie Duan

IPC分类号： H03F3/191 ,  H03G3/00 ,  H03F1/02 ,  H03F1/56 ,  H03F3/189 ,  H03F3/24 ,  H03F3/72

CPC分类号： H03G3/008 ,  H03F1/0277 ,  H03F1/565 ,  H03F3/189 ,  H03F3/191 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/417 ,  H03F2200/421 ,  H03F2203/7215 ,  H03F2203/7221 ,  H03F2203/7236

摘要： An impedance matching network for a radio frequency (RF) amplifier includes multiple stages connected to each other in a first to last order. A first stage produces an RF output signal, and a last stage receives an RF input signal. Each stage includes a first inductor connected to produce an output signal, a second inductor connected to receive an input signal from a next stage, a capacitor connected between the first and second inductors and a ground. In addition, each stage other than the first stage further includes a first switch to by-pass the first and second inductors, a second switch connected between the first and second inductors and the ground, and a controller for controlling, the first and second switches to select a particular power level of a set of power levels.

摘要翻译： 用于射频（RF）放大器的阻抗匹配网络包括以第一到最后的顺序彼此连接的多个级。 第一级产生RF输出信号，最后一级接收RF输入信号。 每个级包括连接以产生输出信号的第一电感器，连接以接收来自下一级的输入信号的第二电感器，连接在第一和第二电感器之间的电容器和接地。 另外，除了第一级之外的每个级还包括第一开关以绕过第一和第二电感器，连接在第一和第二电感器和地之间的第二开关，以及控制器，用于控制第一和第二开关 以选择一组功率电平的特定功率电平。