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1. 发明申请

WO2016085668A1 COMPENSATED COMMON-MODE FEEDBACK FOR AN AMPLIFIER 审中-公开
标题翻译：用于放大器的补偿共模反馈
公开(公告)号：WO2016085668A1
公开(公告)日：2016-06-02
申请号：PCT/US2015/060473
申请日：2015-11-12
申请人： QUALCOMM INCORPORATED
发明人： KARMAKER, Rahul
IPC分类号： H03F1/08 , H03F1/42 , H03F3/45 , H03F3/24 , H03F3/19
CPC分类号： H03F3/45645 , H03F1/086 , H03F1/223 , H03F1/42 , H03F3/19 , H03F3/245 , H03F3/45188 , H03F3/45475 , H03F2200/411 , H03F2200/451 , H03F2203/45051 , H03F2203/45062 , H03F2203/45066 , H03F2203/45116 , H03F2203/45151 , H03F2203/45156 , H03F2203/45404 , H03F2203/45422 , H03F2203/45631 , H03F2203/45718
摘要： A common-mode feedback module (310) is disclosed for controlling feedback in an amplifier (400), such as a multi-stage amplifier. The common-mode feedback module (310) may include a feedback input stage (415), a cascode stage (420), and a feedback output stage (430). The common-mode feedback module (310) may provide feedback, such as negative feedback to the amplifier (400) to extend a bandwidth of a frequency response and/or increase stability.
摘要翻译：公开了一种共模反馈模块（310），用于控制诸如多级放大器之类的放大器（400）中的反馈。共模反馈模块（310）可以包括反馈输入级（415），共源共栅级（420）和反馈输出级（430）。共模反馈模块（310）可以向放大器（400）提供诸如负反馈的反馈以扩展频率响应的带宽和/或增加稳定性。

2. 发明申请

WO2013089482A1 APPARATUS AND CIRCUIT FOR AMPLIFYING BASEBAND SIGNAL 审中-公开
标题翻译：用于放大基带信号的装置和电路
公开(公告)号：WO2013089482A1
公开(公告)日：2013-06-20
申请号：PCT/KR2012/010909
申请日：2012-12-14
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： LEE, Jong-Woo , JUN, Si-Bum
IPC分类号： H03F3/45 , H03F3/70
CPC分类号： H03F3/45071 , H03F1/342 , H03F3/195 , H03F3/45179 , H03F3/45475 , H03F3/45654 , H03F3/45977 , H03F2200/294 , H03F2200/336 , H03F2200/405 , H03F2200/451 , H03F2203/45138 , H03F2203/45404 , H03F2203/45421 , H03F2203/45422 , H03F2203/45444 , H03F2203/45512 , H03F2203/45514 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45591 , H03F2203/45594 , H03L7/00
摘要： An operational amplifier circuit is provided. The operational amplifier circuit includes a differential amplifier of a cascade structure and a switched-capacitor type Common-Mode FeedBack (CMFB) circuit. The differential amplifier amplifies a difference between two input signals to output an anode output voltage and a negative output voltage. The switched-capacitor type CMFB circuit averages the anode output voltage and the negative output voltage of the differential amplifier, compares the average voltage with a reference voltage to generate a feedback signal based on a result of the comparison, and provides the feedback signal to the differential amplifier. Therefore, power consumption is reduced and a battery use time of a wireless terminal can be extended. Also, since an operational amplifier gain of each analog filter terminal is not negatively affected, a Direct Current (DC) offset is reduced, thereby improving signal quality.
摘要翻译：提供运算放大器电路。运算放大器电路包括级联结构的差分放大器和开关电容型共模反馈（CMFB）电路。差分放大器放大两个输入信号之间的差，以输出阳极输出电压和负输出电压。开关电容器型CMFB电路对差分放大器的阳极输出电压和负输出电压进行平均，将平均电压与参考电压进行比较，以根据比较结果生成反馈信号，并将反馈信号提供给差分放大器。因此，功耗降低，无线终端的电池使用时间能够延长。此外，由于每个模拟滤波器端子的运算放大器增益不受负面影响，所以直流（DC）偏移减小，从而提高信号质量。

3. 发明申请

WO2010103580A1 スイッチトキャパシタ増幅回路、アナログフロントエンド回路审中-公开
标题翻译：开关电容放大电路和模拟前端电路
公开(公告)号：WO2010103580A1
公开(公告)日：2010-09-16
申请号：PCT/JP2009/003272
申请日：2009-07-13
申请人：パナソニック株式会社 , 大歯真
发明人：大歯真
IPC分类号： H04N5/335 , H03F3/45
CPC分类号： H03F3/005 , H03F3/45183 , H03F3/4565 , H03F2200/78 , H03F2203/45404 , H03F2203/45424 , H03F2203/45512 , H03F2203/45514 , H03F2203/45544 , H03F2203/45546 , H03F2203/45551 , H03F2203/45616 , H03F2203/45726 , H04N5/378
摘要：　フィードバック容量(Cfa,Cfb)は、入力信号(SIN)の電圧レベルに応じた電荷を蓄積する。次に、出力電圧(VOUTP,VOUTN)がフィードバック容量(Cfa,Cfb)をそれぞれ介して差動増幅器(AMP)の２つの入力端子にそれぞれフィードバックされ、サンプリング容量(Csa,Csb)は、入力信号(Sin)の信号レベルと出力電圧(VOUTP,VOUTN)との差に応じた正電荷および負電荷をそれぞれ蓄積する。次に、サンプリング容量(Csa,Csb)にそれぞれ蓄積された正電荷および負電荷は、差動増幅器(AMP)の第２つの入力端子にそれぞれ転送され、出力電圧(VOUTP,VOUTN)がフィードバック容量(Cfa,Cfb)をそれぞれ介して差動増幅器(AMP)の２つの入力端子にそれぞれフィードバックされる。
摘要翻译：反馈电容（Cfa，Cfb）累积对应于输入信号（SIN）的电压电平的电荷。接下来，输出电压（VOUTP，VOUTN）分别经由反馈电容器（Cfa，Cfb）反馈到差分放大器（AMP）的两个输入端子。采样电容器（Csa，Csb）分别累积对应于输入信号（Sin）的信号电平和输出电压（VOUTP，VOUTN）之间的差异的正电荷和负电荷。接下来，将采样电容器（Csa，Csb）中累积的正电荷和负电荷分别传送到差分放大器（AMP）的两个输入端子。输出电压（VOUTP，VOUTN）分别通过反馈电容器（Cfa，Cfb）反馈到差分放大器（AMP）的两个输入端子。

4. 发明申请

WO0189082A3 AN ULTRA LINEAR HIGH FREQUENCY TRANSCONDUCTOR STRUCTURE 审中-公开
标题翻译：超线性高频交叉结构
公开(公告)号：WO0189082A3
公开(公告)日：2002-05-30
申请号：PCT/US0140680
申请日：2001-05-07
申请人： INTERSIL CORP
发明人： MYERS BRENT , GANTI RAMKISHORE
IPC分类号： H03F3/45 , H03F1/32 , H03F3/26
CPC分类号： H03F3/45937 , H03F3/45511 , H03F2203/45356 , H03F2203/45394 , H03F2203/45404 , H03F2203/45418
摘要： A transductor block including a Czarnul tuning network, transconductance resistors, an input voltage follower amplifier, a common mode circuit, PMOS transistors couples in cascode configuration, an input current source, and high gain amplifiers that drive NMOS transistors at the output. The input voltage follower amplifier receives a differential input signal including a common mode voltage and applies the differential input signal to the Czarnul tuning network. The Czarnul tuning network includes series resistors and is coupled in parallel with the transconductance resistors. The common mode circuit receives the differential input signal and a reference common mode voltage and provides a bias voltage and a common mode output PMOS transistors to establish a DC output current and to minimize drift of the comon mode voltage of the transconductance block. Also, the bias voltage is level shifted from the common mode signal. The high gain amplifiers maintain the output of the Czarnul tuning network and transconductance resistors at the bias voltage.
摘要翻译：包括Czarnul调谐网络，跨导电阻器，输入电压跟随放大器，共模电路，PMOS共栅组合的PMOS晶体管，输入电流源和在输出端驱动NMOS晶体管的高增益放大器的转换器块。输入电压跟随器放大器接收包括共模电压的差分输入信号，并将差分输入信号施加到Czarnul调谐网络。 Czarnul调谐网络包括串联电阻，并与跨导电阻并联耦合。共模电路接收差分输入信号和参考共模电压，并提供偏置电压和共模输出PMOS晶体管以建立DC输出电流并最小化跨导块的共模模式电压的漂移。此外，偏置电压从共模信号电平移位。高增益放大器保持Czarnul调谐网络和跨导电阻在偏置电压下的输出。

5. 发明申请

WO01089082A2 AN ULTRA LINEAR HIGH FREQUENCY TRANSCONDUCTOR STRUCTURE 审中-公开
标题翻译：超线性高频交叉结构
公开(公告)号：WO01089082A2
公开(公告)日：2001-11-22
申请号：PCT/US2001/040680
申请日：2001-05-07
IPC分类号： H03F3/45 , H03F
CPC分类号： H03F3/45937 , H03F3/45511 , H03F2203/45356 , H03F2203/45394 , H03F2203/45404 , H03F2203/45418
摘要： A transductor block including a Czarnul tuning network, transconductance resistors, an input voltage follower amplifier, a common mode circuit, PMOS transistors couples in cascode configuration, an input current source, and high gain amplifiers that drive NMOS transistors at the output. The input voltage follower amplifier receives a differential input signal including a common mode voltage and applies the differential input signal to the Czarnul tuning network. The Czarnul tuning network includes series resistors and is coupled in parallel with the transconductance resistors. The common mode circuit receives the differential input signal and a reference common mode voltage and provides a bias voltage and a common mode output PMOS transistors to establish a DC output current and to minimize drift of the comon mode voltage of the transconductance block. Also, the bias voltage is level shifted from the common mode signal. The high gain amplifiers maintain the output of the Czarnul tuning network and transconductance resistors at the bias voltage.
摘要翻译：包括Czarnul调谐网络，跨导电阻器，输入电压跟随放大器，共模电路，PMOS共栅组合的PMOS晶体管，输入电流源和在输出端驱动NMOS晶体管的高增益放大器的转换器块。输入电压跟随器放大器接收包括共模电压的差分输入信号，并将差分输入信号施加到Czarnul调谐网络。 Czarnul调谐网络包括串联电阻，并与跨导电阻并联耦合。共模电路接收差分输入信号和参考共模电压，并提供偏置电压和共模输出PMOS晶体管以建立DC输出电流并最小化跨导块的共模模式电压的漂移。此外，偏置电压从共模信号电平移位。高增益放大器保持Czarnul调谐网络和跨导电阻在偏置电压下的输出。

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