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1. 发明申请

US20140077879A1 Push-Pull Amplifier and Differential Push-Pull Amplifier 有权
标题翻译：推挽放大器和差分推挽放大器
公开(公告)号：US20140077879A1
公开(公告)日：2014-03-20
申请号：US13617396
申请日：2012-09-14
申请人： Ashkan Naeini , Martin Simon , Herbert Stockinger , Werner Schelmbauer , Bernd-Ulrich Klepser
发明人： Ashkan Naeini , Martin Simon , Herbert Stockinger , Werner Schelmbauer , Bernd-Ulrich Klepser
IPC分类号： H03F3/45 , H03F3/26
CPC分类号： H03F3/301 , H03F1/086 , H03F1/223 , H03F3/245 , H03F3/26 , H03F3/3022 , H03F2203/30033
摘要： A push-pull amplifier includes an amplifier input, a push amplifier stage, a pull amplifier stage and an inverting amplifier output.
摘要翻译：推挽放大器包括放大器输入，推放放大器级，放大级和反相放大器输出。

2. 发明申请

US20130043877A1 OPERATIONAL AMPLIFIER WITH DIFFERENT POWER SUPPLY VOLTAGES 有权
标题翻译：具有不同电源电压的操作放大器
公开(公告)号：US20130043877A1
公开(公告)日：2013-02-21
申请号：US13226064
申请日：2011-09-06
申请人： Xiaohu TANG
发明人： Xiaohu TANG
IPC分类号： G01N27/416 , H03F3/45
CPC分类号： H03F3/45192 , G01R31/3658 , H03F1/0211 , H03F1/523 , H03F3/3023 , H03F3/45475 , H03F2200/411 , H03F2200/516 , H03F2203/30033 , H03F2203/45292 , H03F2203/45302 , H03F2203/45454 , H03F2203/45466 , H03F2203/45476 , H03F2203/45616
摘要： An operational amplifier with different power supply voltages includes an input stage and an output stage. The input stage includes a current source for providing a bias current, and a differential input circuit for receiving the bias current and differential input voltage signals, and converting the differential input voltage signal to differential input currents. The input stage is supplied by a first power supply voltage. The output stage includes a load circuit coupled to the differential input voltage signal and for receiving the differential input currents, and outputting a single ended output voltage signal. The output stage is supplied by a second power supply voltage. The second power supply voltage is lower than the first power supply voltage.
摘要翻译：具有不同电源电压的运算放大器包括输入级和输出级。输入级包括用于提供偏置电流的电流源和用于接收偏置电流和差分输入电压信号的差分输入电路，以及将差分输入电压信号转换为差分输入电流。输入级由第一电源电压提供。输出级包括耦合到差分输入电压信号并用于接收差分输入电流并输出单端输出电压信号的负载电路。输出级由第二电源电压提供。第二电源电压低于第一电源电压。

3. 发明申请

US20120182072A1 Self-Biasing Radio Frequency Circuitry 有权
标题翻译：自偏置射频电路
公开(公告)号：US20120182072A1
公开(公告)日：2012-07-19
申请号：US13348397
申请日：2012-01-11
申请人： Jinho Park , Yuan Lu , Li Lin
发明人： Jinho Park , Yuan Lu , Li Lin
IPC分类号： H03F3/45 , H03F3/26
CPC分类号： H03F3/3016 , H03F1/0272 , H03F1/083 , H03F3/195 , H03F3/3028 , H03F2200/294 , H03F2203/30021 , H03F2203/30027 , H03F2203/30031 , H03F2203/30033 , H03F2203/30036 , H03F2203/30084 , H03F2203/30117
摘要： The present disclosure describes self-biasing radio frequency circuitry. In some aspects a radio frequency (RF) signal is amplified via a circuit having a first transistor configured to source current to an output of the circuit and a second transistor configured to sink current from the output of the circuit, and another signal is provided, without active circuitry, from the output of the circuit to a gate of the first transistor effective to bias a voltage at the output of the circuit. By so doing, the output of the circuit can be biased without active circuitry which can reduce design complexity of and substrate area consumed by the circuit.
摘要翻译：本公开描述了自偏置射频电路。在一些方面中，射频（RF）信号经由具有第一晶体管的电路被放大，该第一晶体管被配置为将电流源电流到电路的输出，以及第二晶体管，被配置为从电路的输出吸收电流，并且提供另一个信号，没有有源电路，从电路的输出到第一晶体管的栅极有效地偏置电路输出处的电压。通过这样做，电路的输出可以被偏置而没有有源电路，这可以降低电路消耗的设计复杂度和衬底面积。

4. 发明授权

US07994859B2 High-speed, multi-stage class AB amplifiers 有权
标题翻译：高速，多级AB类放大器
公开(公告)号：US07994859B2
公开(公告)日：2011-08-09
申请号：US12849561
申请日：2010-08-03
申请人： Sehat Sutardja
发明人： Sehat Sutardja
IPC分类号： H03F3/45
CPC分类号： H03F1/086 , H03F3/3001 , H03F3/45179 , H03F2200/153 , H03F2203/30033 , H03F2203/45028 , H03F2203/45318 , H03F2203/45424
摘要： A multi-stage Class AB amplifier system includes a first Class AB amplifier circuit and a second Class AB amplifier circuit. A current mirror circuit is in communication with the first Class AB amplifier circuit. A bias circuit is in communication with the current mirror circuit. A frequency compensation circuit is arranged between the bias circuit and the second Class AB amplifier circuit. A common-mode feedback circuit is in communication with the second Class AB amplifier circuit. The common-mode feedback circuit is configured to generate a feedback signal.
摘要翻译：多级AB类放大器系统包括第一AB类放大器电路和第二AB类放大器电路。电流镜电路与第一AB类放大器电路连接。偏置电路与电流镜电路连通。频率补偿电路设置在偏置电路和第二AB类放大器电路之间。共模反馈电路与第二AB类放大器电路进行通信。共模反馈电路被配置为产生反馈信号。

5. 发明授权

US07893767B2 Operational amplifier and integrating circuit 失效
标题翻译：运算放大器和积分电路
公开(公告)号：US07893767B2
公开(公告)日：2011-02-22
申请号：US12314488
申请日：2008-12-11
申请人： Kuniyuki Okuyama
发明人： Kuniyuki Okuyama
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F1/083 , H03F1/342 , H03F2200/153 , H03F2203/30033 , H03F2203/45248 , H03F2203/45512 , H03F2203/45518 , H03F2203/45526
摘要： An operational amplifier in accordance with one embodiment of the present invention includes a differential amplifier circuit to perform differential amplification of an input signal with respect to a reference potential Vbias, an output circuit to output a signal amplified by the differential amplifier circuit, a phase compensation capacitance connected between the output of the differential amplifier circuit and the output of the output circuit to compensate the phase of the signal output from the output circuit, and a diode connected in parallel with the phase compensation capacitance.
摘要翻译：根据本发明的一个实施例的运算放大器包括差分放大器电路，用于相对于参考电位Vbias执行输入信号的差分放大，输出电路，输出由差分放大器电路放大的信号，相位补偿电容连接在差分放大器电路的输出端和输出电路的输出端之间，以补偿从输出电路输出的信号的相位，以及与相位补偿电容并联的二极管。

6. 发明申请

US20100295620A1 HIGH-SPEED, MULTI-STAGE CLASS AB AMPLIFIERS 有权
标题翻译：高速，多级AB放大器
公开(公告)号：US20100295620A1
公开(公告)日：2010-11-25
申请号：US12849238
申请日：2010-08-03
申请人： Sehat Sutardja
发明人： Sehat Sutardja
IPC分类号： H03F3/04
CPC分类号： H03F1/086 , H03F3/3001 , H03F3/45179 , H03F2200/153 , H03F2203/30033 , H03F2203/45028 , H03F2203/45318 , H03F2203/45424
摘要： A multi-stage Class AB amplifier system includes a first Class AB amplifier circuit configured to receive an input signal. A bias circuit is configured to receive an output of the first Class AB amplifier circuit. A second Class AB amplifier circuit is in communication with the bias circuit. The second Class AB amplifier circuit is configured to generate an output signal. A current mirror circuit is arranged between the first Class AB amplifier circuit and the bias circuit. A common-mode feedback circuit is configured to generate a feedback signal based on the output signal.
摘要翻译：多级AB类放大器系统包括被配置为接收输入信号的第一AB类放大器电路。偏置电路被配置为接收第一AB类放大器电路的输出。第二个AB类放大器电路与偏置电路通信。第二AB类放大器电路被配置为产生输出信号。在第一AB类放大器电路和偏置电路之间布置电流镜电路。共模反馈电路被配置为基于输出信号产生反馈信号。

7. 发明申请

US20090115524A1 OUTPUT STAGE CIRCUIT AND OPERATIONAL AMPLIFIER THEREOF 有权
标题翻译：输出电路和运算放大器
公开(公告)号：US20090115524A1
公开(公告)日：2009-05-07
申请号：US12266073
申请日：2008-11-06
申请人： Chang-Shun LIU
发明人： Chang-Shun LIU
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F3/3028 , H03F2203/30033 , H03F2203/45644
摘要： The present invention relates to an output stage circuit and an operational amplifier thereof. In the output stage circuit, one of a gate of a transistor is coupled to a gate of a bias transistor and a level shifter in response to a small signal outputted from an amplifying circuit in the operational amplifier. In addition, a gate voltage of the bias transistor is controlled by a voltage generating circuit to control a DC bias of the transistor of the output stage circuit. Therefore, extra frequency compensating components for compensating the transistor of the output stage circuit is no longer necessary, and saving circuit layout area and cost can be achieved by the present invention.
摘要翻译：本发明涉及一种输出级电路及其运算放大器。在输出级电路中，响应于从运算放大器中的放大电路输出的小信号，将晶体管的栅极中的一个耦合到偏置晶体管的栅极和电平移位器。此外，偏置晶体管的栅极电压由电压产生电路控制，以控制输出级电路的晶体管的DC偏置。因此，不再需要用于补偿输出级电路的晶体管的额外的频率补偿部件，并且通过本发明可以实现节省电路布局面积和成本。

8. 发明申请

US20080272844A1 CLASS AB FOLDED-CASCODE AMPLIFIER HAVING CASCODE COMPENSATION 有权
标题翻译： CLASS AB折叠码头放大器具有CASCODE补偿
公开(公告)号：US20080272844A1
公开(公告)日：2008-11-06
申请号：US12174102
申请日：2008-07-16
申请人： Surapap RAYANAKORN , Robert C. Dobkin , Brendan J. Whelan
发明人： Surapap RAYANAKORN , Robert C. Dobkin , Brendan J. Whelan
IPC分类号： H03F3/45 , H03F1/14
CPC分类号： H03F1/483 , H03F3/3022 , H03F3/45192 , H03F2200/36 , H03F2200/513 , H03F2203/30033 , H03F2203/45302 , H03F2203/45512
摘要： A class AB folded-cascode amplifier having improved gain-bandwidth product, comprises a differential input circuit including a differential transistor pair coupled to a source of tail current and responsive to a differential input signal for conducting a first current, a cascode circuit coupled to the differential input circuit for supplying a second current thereto, and a class AB output stage. A compensation circuit is configured for feeding back mutually complementary compensation signals from an output node to the differential input circuit. Another compensation circuit is configured for feeding back a signal from the output of the output stage to the input of the output stage.
摘要翻译：具有改进的增益带宽乘积的AB类折叠共源共栅放大器包括差分输入电路，差分输入电路包括耦合到尾电流源的差分晶体管对，并响应用于传导第一电流的差分输入信号，耦合到用于提供第二电流的差分输入电路和AB类输出级。补偿电路被配置为将相互补偿的补偿信号从输出节点反馈到差分输入电路。另一个补偿电路被配置为将信号从输出级的输出反馈到输出级的输入端。

9. 发明申请

US20070273442A1 High-efficiency class-AB amplifier 有权
标题翻译：高效率AB类放大器
公开(公告)号：US20070273442A1
公开(公告)日：2007-11-29
申请号：US11798293
申请日：2007-05-11
申请人： Ovidiu Bajdechi , Christopher M. Ward , Klaas Bult
发明人： Ovidiu Bajdechi , Christopher M. Ward , Klaas Bult
IPC分类号： H03F3/45
CPC分类号： H03F3/3028 , H03F1/0261 , H03F3/45192 , H03F3/45219 , H03F2203/30033 , H03F2203/30084 , H03F2203/30117 , H03F2203/45244 , H03F2203/45302 , H03F2203/45641 , H03F2203/45732
摘要： A high efficiency class-AB amplifier is disclosed. The amplifier comprises a first input stage and a second input stage, both coupled to a class-AB biasing mesh and an output stage, wherein the outputs of the first and second input stages are directly coupled to the output transistors in the output stage. In one embodiment, a first gate of the first input stage and of the second input stage are coupled together to receive the same input and a second gate of the first input stage and of the second input stage are coupled together to receive the same input. In another embodiment, the first input stage and second input stage may further comprise cascode transistors for coupling the two input stages to the class-AB biasing mesh. In yet another embodiment, a 3V supply is used and 1V transistors are used to improve gain and 3V transistors are used to protect the 1V transistors.
摘要翻译：公开了一种高效率AB类放大器。放大器包括耦合到AB类偏置网格和输出级的第一输入级和第二输入级，其中第一和第二输入级的输出直接耦合到输出级中的输出晶体管。在一个实施例中，第一输入级和第二输入级的第一栅极耦合在一起以接收相同的输入，并且第一输入级和第二输入级的第二栅极耦合在一起以接收相同的输入。在另一个实施例中，第一输入级和第二输入级还可以包括用于将两个输入级耦合到AB类偏置网的共源共栅晶体管。在另一个实施例中，使用3V电源，并且使用1V晶体管来改善增益，并且使用3V晶体管来保护1V晶体管。

10. 发明授权

US09362872B2 Self-biasing radio frequency circuitry 有权
标题翻译：自偏置射频电路
公开(公告)号：US09362872B2
公开(公告)日：2016-06-07
申请号：US14134223
申请日：2013-12-19
申请人： Marvell World Trade Ltd.
发明人： Jinho Park , Yuan Lu , Li Lin
IPC分类号： H03F3/26 , H03F3/30 , H03F1/02 , H03F1/08 , H03F3/195
CPC分类号： H03F3/3016 , H03F1/0272 , H03F1/083 , H03F3/195 , H03F3/3028 , H03F2200/294 , H03F2203/30021 , H03F2203/30027 , H03F2203/30031 , H03F2203/30033 , H03F2203/30036 , H03F2203/30084 , H03F2203/30117
摘要： The present disclosure describes self-biasing radio frequency circuitry. In some aspects a radio frequency (RF) signal is amplified via a circuit having a first transistor configured to source current to an output of the circuit and a second transistor configured to sink current from the output of the circuit, and another signal is provided, without active circuitry, from the output of the circuit to a gate of the first transistor effective to bias a voltage at the output of the circuit. By so doing, the output of the circuit can be biased without active circuitry which can reduce design complexity of and substrate area consumed by the circuit.
摘要翻译：本公开描述了自偏置射频电路。在一些方面中，射频（RF）信号经由具有第一晶体管的电路被放大，该第一晶体管被配置为将电流源电流到电路的输出，以及第二晶体管，被配置为从电路的输出吸收电流，并且提供另一个信号，没有有源电路，从电路的输出到第一晶体管的栅极有效地偏置电路输出处的电压。通过这样做，电路的输出可以被偏置而没有有源电路，这可以降低电路消耗的设计复杂度和衬底面积。

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