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11. 发明授权

US09671805B2 Linear voltage regulator utilizing a large range of bypass-capacitance 有权
公开(公告)号：US09671805B2
公开(公告)日：2017-06-06
申请号：US14632345
申请日：2015-02-26
申请人： Dialog Semiconductor GmbH
发明人： Stephan Drebinger , Roberto Curra
IPC分类号： G05F1/575 , H03F3/34 , H03F3/45
CPC分类号： G05F1/575 , H03F3/34 , H03F3/45183 , H03F2200/297 , H03F2203/45301 , H03F2203/45674
摘要： Amplifiers, notably multi-stage amplifiers, such as linear regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients are presented. An amplifier is described, which comprises a first amplification stage configured to provide an intermediate voltage, based on an outer feedback voltage and based on a reference voltage. Furthermore, the amplifier comprises an output stage configured to provide a load current at an output voltage based on the intermediate voltage. In addition, the amplifier comprises an outer feedback circuit configured to derive the outer feedback voltage from the output voltage. The output stage comprises a buffer configured to provide a drive voltage based on the intermediate voltage and based on an inner feedback voltage derived from the output voltage. The buffer comprises a pass device which is configured to provide the load current at the output voltage based on the drive voltage.

12. 发明申请

US20070085607A1 Electronic circuit for amplification of a bipolar signal 有权
标题翻译：用于放大双极性信号的电子电路
公开(公告)号：US20070085607A1
公开(公告)日：2007-04-19
申请号：US10575772
申请日：2004-10-06
申请人： Rachid El Waffaoui
发明人： Rachid El Waffaoui
IPC分类号： H03F3/45
CPC分类号： H03F3/72 , H03F1/26 , H03F3/34 , H03F2200/153 , H03F2200/372
摘要： The present invention relates to an electronic circuit for amplification of bipolar symmetric current signals. The electronic circuit has a pair of complimentary current mirrors. Depending on the polarity of the bipolar current signal one or the current mirrors is active while the other current mirror is in an off state. This way adding a biasing current to the input signal is avoided which substantially reduces noise.
摘要翻译：本发明涉及用于放大双极对称电流信号的电子电路。电子电路有一对补偿电流镜。根据双极性电流信号的极性，一个或电流镜是活动的，而另一个电流镜处于关闭状态。这样可以避免向输入信号增加偏置电流，从而大大降低噪声。

13. 发明授权

US06856197B1 Symmetrical current amplifier 失效
标题翻译：对称电流放大器
公开(公告)号：US06856197B1
公开(公告)日：2005-02-15
申请号：US10627669
申请日：2003-07-28
申请人： Ted Humphrey
发明人： Ted Humphrey
IPC分类号： H03F3/34 , H03F3/45
CPC分类号： H03F3/34 , H03F3/3076 , H03F3/45475 , H03F2200/91
摘要： This patent teaches the creation and use of current amplifiers. The use of current inputs allows one to use techniques normally associated with Current Feed Amplifiers. The patent uses a family of topologies that include two inputs that are responsive to currents. These two inputs are substantially equal in properties. This is an improvement over existing Current Feedback Amplifier designs where there is actually one voltage input and one current input which draws a lot of current as it is really the output of a buffer. This patent uses amplifier topologies that give us amplifiers with lower distortion, improved frequency response, increased DC stability, and increased stability of internal biasing than prior art. This is accomplished with a simplification of circuit complexity, reduced reliance upon Vbe matching of transistors, and takes away the need to use the long-tailed pair for amplification. The patent teaches embodiments that go beyond that of Current Feedback Amplifiers as currently implemented. This patent teaches how to amplify a signal (or the difference of two signals) by the use of dual amplified (buffered) current subtractions at a high impedance point. Some of the topologies can be used at very low supply voltages without the usual loss of performance.
摘要翻译：该专利教导了当前放大器的创建和使用。使用电流输入可以使用通常与电流进给放大器相关的技术。该专利使用一系列拓扑结构，其中包括对电流响应的两个输入。这两个输入的性质基本相同。这是对现有的电流反馈放大器设计的改进，其中实际上有一个电压输入和一个电流输入，其吸收了大量电流，因为它实际上是缓冲器的输出。该专利使用放大器拓扑，其给出了比现有技术更低的失真，改善的频率响应，增加的DC稳定性和增加的内部偏置的稳定性的放大器。这是通过简化电路复杂性，减少对晶体管的Vbe匹配的依赖性而实现的，并且消除了使用长尾对进行放大的需要。该专利教导了超出当前实现的电流反馈放大器的实施例。该专利教导了如何通过在高阻抗点使用双放大（缓冲）电流减法来放大信号（或两个信号的差异）。一些拓扑可以在非常低的电源电压下使用，而不会造成通常的性能损失。

14. 发明授权

US5880632A Tube amplifier having special configuration with two or more tubes 失效
标题翻译：管放大器具有两个或多个管的特殊配置
公开(公告)号：US5880632A
公开(公告)日：1999-03-09
申请号：US687932
申请日：1996-07-29
申请人： Fujio Yamasita
发明人： Fujio Yamasita
IPC分类号： H03F3/181 , H03F3/34 , H03F3/52
CPC分类号： H03F3/181 , H03F3/34
摘要： There is provided a tube amplifier comprising a first vacuum tube K3 having a plate applied with a positive voltage and a cathode applied with a negative voltage by a first resistor, a second vacuum tube K4 having a grid connected to the cathode of the first vacuum tube and a cathode or a heater applied with a voltage close to a potential of zero in relation to a plate voltage, and an output transformer TF1 having a first coil and a second coil which is connected to a loud-speaker, said first coil having a terminal connected to the plate of the second vacuum tube and another terminal applied with a positive voltage. Also, time means is used to optimally maintain the grid voltage of the second vacuum tube when the power source is turned on, and the plate voltage of another vacuum tube K1 provided in a preceding stage of the first vacuum tube is controlled to maintain the negative voltage applied to the grid of the second vacuum tube at a desired value.
摘要翻译：提供了一种管放大器，其包括具有施加正电压的板的第一真空管K3和通过第一电阻施加负电压的阴极，具有连接到第一真空管的阴极的栅极的第二真空管K4 以及施加有相对于板电压接近零电压的阴极或加热器，以及具有连接到扬声器的第一线圈和第二线圈的输出变压器TF1，所述第一线圈具有端子连接到第二真空管的板，另一个端子施加正电压。此外，当电源接通时，时间手段用于最佳地维持第二真空管的电网电压，并且控制设置在第一真空管的前级中的另一个真空管K1的板电压以维持负施加到第二真空管的栅极上的电压处于期望值。

15. 发明授权

US3999139A Monolithic alternately stacked IF amplifier 失效
标题翻译：单片交替堆叠中频放大器
公开(公告)号：US3999139A
公开(公告)日：1976-12-21
申请号：US498348
申请日：1974-08-19
申请人： Robert D. Fennell
发明人： Robert D. Fennell
IPC分类号： H03F1/02 , H03F1/22 , H03F3/34 , H03F3/42 , H03F3/04
CPC分类号： H03F3/34 , H03F1/0283 , H03F1/22
摘要： The IF amplifier combines the high frequency and low noise figure characteristics of a cascode stage with the large signal handling capability and accurate gain control of a direct emitter coupled amplifier controlled by a constant current source. The amplifier uses a technique of alternately stacked cascode stages which results in minimizing both the total current drain and the value of DC potential necessary to operate the amplifier. A current mirror, independent of power supply variation, is used to control the gain of the amplifier and is also used to provide temperature compensation for amplifier gain. Special bias techniques along with the current mirror minimize the variation of the amplifier gain with respect to DC power supply variations. Novel use of semiconductor devices minimizes the number of leadout connections on an I.C. chip needed for attaching large external bypass capacitors.
摘要翻译： IF放大器将共源共栅级的高频和低噪声系数特性与大信号处理能力和由恒定电流源控制的直接发射极耦合放大器的精确增益控制相结合。该放大器采用交替堆叠的共源共栅级的技术，从而最大限度地减小了操作放大器所需的总电流消耗和DC电位值。电流镜独立于电源变化，用于控制放大器的增益，并且还用于为放大器增益提供温度补偿。与电流镜一起使用特殊偏置技术可以减小放大器增益相对于直流电源变化的变化。半导体器件的新颖使用最大限度地减少了I.C.上的导出连接的数量。连接大型外部旁路电容所需的芯片。

16. 发明授权

US3644838A Amplifier using bipolar and field-effect transistors 失效
标题翻译：使用双极和场效应晶体管的放大器
公开(公告)号：US3644838A
公开(公告)日：1972-02-22
申请号：US3644838D
申请日：1970-06-11
申请人： RCA CORP
发明人： GRAF STEFANO
IPC分类号： H03F3/343 , H03F3/30 , H03F3/34 , H03F3/345 , H03F3/347 , H03F3/45 , H03F3/16
CPC分类号： H03F3/4508 , H03F3/3089 , H03F3/34 , H03F3/345 , H03F3/347 , H03F3/45291 , H03F2203/45028 , H03F2203/45304 , H03F2203/45308 , H03F2203/45476 , H03F2203/45674 , H03F2203/45708
摘要： A high-speed, high slew rate operational amplifier comprised of bipolar and insulated-gate field-effect transistors (IGFET''s). The amplifier includes a bipolar differential input stage whose active load is the source-drain path of a first IGFET. The source-drain path of a second IGFET is connected between the output node of the differential input stage and the input of the emitter follower output stage. The second IGFET operated in the common-gate configuration level shifts the DC level and translates the signal current from the input stage to the output stage providing voltage gain.

17. 发明授权

US3510694A Voltage to current converter 失效
标题翻译：电流转换器
公开(公告)号：US3510694A
公开(公告)日：1970-05-05
申请号：US3510694D
申请日：1967-03-06
申请人： PHILLIPS PETROLEUM CO
发明人： MICHAEL RICHARD W
IPC分类号： H03F3/34
CPC分类号： H03F3/34

18. 发明申请

US20190097845A1 CONTINUOUS TIME LINEAR EQUALIZER 审中-公开
公开(公告)号：US20190097845A1
公开(公告)日：2019-03-28
申请号：US15715205
申请日：2017-09-26
申请人： International Business Machines Corporation
发明人： Pier Andrea Francese , Ilter Oezkaya , Alessandro Cevrero
IPC分类号： H04L25/03 , H03F3/45 , H03F3/193
CPC分类号： H04L25/03038 , H03F3/193 , H03F3/34 , H03F3/345 , H03F3/45179 , H03F3/45224 , H03F3/45246 , H03F2203/45022 , H03F2203/45028 , H03F2203/45394 , H04B1/1081 , H04L25/03159 , H04L25/03885 , H04L2025/03541
摘要： The present invention relates to a continuous time linear equalizer comprising a first signal path comprising a high pass filter and a first controllable transconductance unit and a second signal path comprising a second controllable transconductance unit. The continuous time linear equalizer comprises a summation node configured to receive complementary current summation signals of the first transconductance unit and the second transconductance unit. The high pass filter comprises a first port configured to receive an input signal, a second port coupled to a control port of the first transconductance unit and a third port coupled to the summation node. The invention is notably also directed to a corresponding method and a corresponding design structure.

19. 发明授权

US10008931B2 Semiconductor integrated circuit 有权
公开(公告)号：US10008931B2
公开(公告)日：2018-06-26
申请号：US15257131
申请日：2016-09-06
申请人： TOSHIBA MEMORY CORPORATION
发明人： Hiroyuki Ideno , Hidefumi Kushibe
IPC分类号： G05F1/575 , G05F1/56 , G05F1/46 , G05F1/565 , G05F1/618 , H02M3/158
CPC分类号： H02M3/158 , G05F1/563 , G05F1/565 , G05F1/571 , G05F1/575 , H03F3/34 , H03F2200/555 , H03F2200/78
摘要： According to one embodiment, in a semiconductor integrated circuit, a first input terminal of an error amplifier is electrically connected to a third node between a second node and a reference potential. A second input terminal of the error amplifier is electrically connected to a reference voltage. An output terminal of the error amplifier is electrically connected to a gate of an output transistor. A first input terminal of a comparator is electrically connected to a fourth node between the second node and the reference potential. A second input terminal of the comparator is electrically connected to the reference voltage. One end of a coupling capacitance is electrically connected to an output terminal of the comparator. A gate of an auxiliary transistor is electrically connected to the other end of the coupling capacitance. A drain of the auxiliary transistor is electrically connected to the second node.

20. 发明申请

US20150355653A1 Linear Voltage Regulator Utilizing a Large Range of Bypass-Capacitance 有权
标题翻译：线性稳压器利用大范围的旁路电容
公开(公告)号：US20150355653A1
公开(公告)日：2015-12-10
申请号：US14632345
申请日：2015-02-26
申请人： Dialog Semiconductor GmbH
发明人： Stephan Drebinger , Roberto Curra
IPC分类号： G05F1/575
CPC分类号： G05F1/575 , H03F3/34 , H03F3/45183 , H03F2200/297 , H03F2203/45301 , H03F2203/45674
摘要： Amplifiers, notably multi-stage amplifiers, such as linear regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients are presented. An amplifier is described, which comprises a first amplification stage configured to provide an intermediate voltage, based on an outer feedback voltage and based on a reference voltage. Furthermore, the amplifier comprises an output stage configured to provide a load current at an output voltage based on the intermediate voltage. In addition, the amplifier comprises an outer feedback circuit configured to derive the outer feedback voltage from the output voltage. The output stage comprises a buffer configured to provide a drive voltage based on the intermediate voltage and based on an inner feedback voltage derived from the output voltage. The buffer comprises a pass device which is configured to provide the load current at the output voltage based on the drive voltage.
摘要翻译：放大器，特别是多级放大器，例如被配置为提供经受负载瞬变的恒定输出电压的线性稳压器（例如低压差稳压器）。描述了放大器，其包括第一放大级，其被配置为基于外部反馈电压并且基于参考电压提供中间电压。此外，放大器包括输出级，其被配置为基于中间电压在输出电压下提供负载电流。此外，放大器包括被配置为从输出电压导出外部反馈电压的外部反馈电路。输出级包括被配置为基于中间电压提供驱动电压并基于从输出电压导出的内部反馈电压的缓冲器。缓冲器包括通过装置，其被配置为基于驱动电压在输出电压下提供负载电流。

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