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21. 发明申请

US20150255173A1 SWITCHED CAPACITOR CIRCUIT AND DRIVE METHOD THEREFOR 有权
标题翻译：开关电容器电路及其驱动方法
公开(公告)号：US20150255173A1
公开(公告)日：2015-09-10
申请号：US14431501
申请日：2013-09-27
申请人： PANASONIC CORPORATION
发明人： Yusuke Tokunaga
IPC分类号： G11C27/02 , H03M1/12
CPC分类号： G11C27/026 , H03F3/005 , H03F3/45475 , H03F2203/45514 , H03F2203/45551 , H03F2203/45634 , H03H19/004 , H03M1/00 , H03M1/12 , H03M1/1255 , H03M1/804
摘要： A switched capacitor circuit according to the present invention includes: a capacitor including a first terminal to which the input voltage is applied and a second terminal; a capacitor including a third terminal and a fourth terminal; an inverting amplifier including a second output terminal and a second input terminal which is connected to the fourth terminal; a capacitor including a fifth terminal and a sixth terminal; a capacitor including a seventh terminal and an eighth terminal and included in an electrical path between the second output terminal and the fifth terminal; and a capacitor including a ninth terminal and a tenth terminal connected to the second terminal and the sixth terminal, respectively. The third terminal is connected to the second terminal. The sixth terminal is connected to the output terminal.
摘要翻译：根据本发明的开关电容器电路包括：电容器，包括施加有输入电压的第一端子和第二端子; 包括第三端子和第四端子的电容器; 反相放大器，包括连接到第四端子的第二输出端子和第二输入端子; 包括第五端子和第六端子的电容器; 电容器，包括第七端子和第八端子，并且包括在所述第二输出端子和所述第五端子之间的电气路径中; 以及包括分别连接到第二端子和第六端子的第九端子和第十端子的电容器。第三终端连接到第二终端。第六个端子连接到输出端子。

22. 发明申请

US20150214901A1 AMPLIFIER AND RADIATION DETECTOR 有权
标题翻译：放大器和放射检测器
公开(公告)号：US20150214901A1
公开(公告)日：2015-07-30
申请号：US14418633
申请日：2013-07-31
申请人： Horiba, Ltd. , Politecnico di Milano
发明人： Carlo Fiorini , Luca Bombelli
IPC分类号： H03F1/26 , G01T1/17 , H03F3/08 , G01T1/24
CPC分类号： H03F1/26 , G01T1/17 , G01T1/24 , H03F3/08 , H03F3/45475 , H03F3/70 , H03F2200/261 , H03F2200/372 , H03F2200/411 , H03F2203/45512 , H03F2203/45514 , H03F2203/45536
摘要： In a preamplifier (amplifier) for the radiation detector, an interconnection layer connected to the bonding pad forms one electrode of a feedback capacitor. Since there is no wiring for connecting the bonding pad and capacitor, a parasitic capacitance caused by the wiring will not be generated. Moreover, the capacitor is arranged below the bonding pad with a conductive layer serving as the other electrode, so that the feedback capacitance of the capacitor is included in the parasitic capacitance between the interconnection layer and the substrate. Compared to the conventional case, an amount of capacitance corresponding to the parasitic capacitance caused by wiring and the feedback capacitance for the capacitor is reduced from the input capacitance. Thus, the input capacitance for the amplifying circuit is reduced.
摘要翻译：在用于辐射检测器的前置放大器（放大器）中，连接到焊盘的互连层形成反馈电容器的一个电极。由于没有用于连接焊盘和电容器的布线，所以不会产生由布线引起的寄生电容。此外，电容器布置在焊盘的下方，导电层用作另一电极，使得电容器的反馈电容包括在互连层和衬底之间的寄生电容中。与常规情况相比，由布线引起的寄生电容对应的电容量和电容器的反馈电容从输入电容减小。因此，放大电路的输入电容减小。

23. 发明授权

US09076554B1 Low-noise low-distortion signal acquisition circuit and method with reduced area utilization 有权
标题翻译：低噪声低失真信号采集电路和方法，减少面积利用率
公开(公告)号：US09076554B1
公开(公告)日：2015-07-07
申请号：US14260885
申请日：2014-04-24
申请人： Aeroflex Colorado Springs Inc.
发明人： Alfio Zanchi , Shinichi Hisano
IPC分类号： G11C27/02 , H03F3/45 , H03M1/36
CPC分类号： G11C27/026 , H01L31/02002 , H03F1/08 , H03F1/083 , H03F3/08 , H03F3/087 , H03F3/45076 , H03F3/45475 , H03F2200/129 , H03F2200/156 , H03F2200/45 , H03F2203/45444 , H03F2203/45514 , H03M1/1215
摘要： A sample and hold amplifier includes an input node for receiving an input current signal, a non-linear sampling capacitor circuit having an input coupled to the input node, an operational amplifier having a negative input coupled to an output of the non-linear sampling capacitor circuit, a positive input coupled to ground, and an output for providing a sample and hold voltage signal, and a linear capacitor coupled between the negative input and the output of the operational amplifier. The non-linear sampling capacitor includes a non-linear capacitor coupled between an intermediate node and ground, a first switch coupled between the input and the intermediate node configured to switch according to a first phase signal, and a second switch coupled between the output and the intermediate node configured to switch according to a second phase signal.
摘要翻译：采样和保持放大器包括用于接收输入电流信号的输入节点，具有耦合到输入节点的输入的非线性采样电容器电路，具有耦合到非线性采样电容器的输出的负输入的运算放大器电路，耦合到地的正输入，以及用于提供采样和保持电压信号的输出，以及耦合在运算放大器的负输入和输出之间的线性电容器。非线性采样电容器包括耦合在中间节点和地之间的非线性电容器，耦合在被配置为根据第一相位信号切换的输入和中间节点之间的第一开关，以及耦合在输出和所述中间节点被配置为根据第二相位信号进行切换。

24. 发明授权

US08988146B1 Voltage amplifier for capacitive sensing devices using very high impedance 有权
标题翻译：用于电容式传感器的电压放大器采用非常高的阻抗
公开(公告)号：US08988146B1
公开(公告)日：2015-03-24
申请号：US13986803
申请日：2013-06-07
申请人： Ion E. Opris
发明人： Ion E. Opris
IPC分类号： H03K17/16 , H03F3/45 , H03K17/687
CPC分类号： H03K17/165 , H03F3/187 , H03F3/45475 , H03F2203/45514 , H03K17/6871
摘要： According to some embodiments, a switch having an “on” state and an “off” state is exhibiting a low impedance in the “on” state, and a very high impedance in the “off” state. The switch comprises three series MOS transistors, the first transistor having its drain connected to the input. The switch also comprises additional circuitry which reduces, in the “off” state, the leakage current of the MOS transistor connected to the input of the switch by connecting its source and bulk to an electrical node replicating the voltage of the input node. According to some embodiments, the said switch is used in a voltage amplifier for capacitive sensing devices, such as MEMS gyroscopes and MEMS microphones; the voltage amplifier uses an operational amplifier used in a trans-capacitance configuration, with the feedback path comprising the said switch and a capacitor, wherein the said switch is connected to the input of, the voltage amplifier. According to some embodiments, the said switch is used in an integrated circuit which processes the voltage across a sensing device.
摘要翻译：根据一些实施例，具有“导通”状态和“断开”状态的开关在“接通”状态下呈现低阻抗，并且在“断开”状态下呈现非常高的阻抗。开关包括三个串联MOS晶体管，第一晶体管的漏极连接到输入端。开关还包括附加电路，其通过将源极和体积连接到复制输入节点的电压的电节点，在“关断”状态下降低连接到开关输入端的MOS晶体管的漏电流。根据一些实施例，所述开关用于诸如MEMS陀螺仪和MEMS麦克风的电容感测装置的电压放大器; 电压放大器使用用于跨电容配置的运算放大器，反馈路径包括所述开关和电容器，其中所述开关连接到电压放大器的输入端。根据一些实施例，所述开关用于处理感测装置两端的电压的集成电路。

25. 发明授权

US08963630B2 System and method for boosted switches 有权
标题翻译：升压开关的系统和方法
公开(公告)号：US08963630B2
公开(公告)日：2015-02-24
申请号：US13527104
申请日：2012-06-19
申请人： Jose Luis Ceballos , Christian Reindl
发明人： Jose Luis Ceballos , Christian Reindl
IPC分类号： H02M3/07 , H03K5/00
CPC分类号： H03F3/45475 , H03F2203/45514 , H03F2203/45551
摘要： In accordance with an embodiment, a method includes activating a first semiconductor switch having a first switch node coupled to a first input of a bootstrap circuit, a second switch node, and a control node coupled to a first end of a capacitor of the bootstrap circuit. A first end of the capacitor is coupled to the first input of the bootstrap circuit and a second end of the capacitor is set to a first voltage. Next, the first end of the capacitor is decoupled from the first input of the bootstrap circuit, and the second end of the capacitor is set to a second voltage. The control node is boosted to a first activation voltage that turns on the first semiconductor switch.
摘要翻译：根据实施例，一种方法包括激活具有耦合到自举电路的第一输入的第一开关节点的第一半导体开关，第二开关节点和耦合到自举电路的电容器的第一端的控制节点。电容器的第一端耦合到自举电路的第一输入，并且电容器的第二端被设置为第一电压。接下来，电容器的第一端与自举电路的第一输入端分离，电容器的第二端被设置为第二电压。控制节点被升压到导通第一半导体开关的第一激活电压。

26. 发明授权

US08941438B2 Bandwidth limiting for amplifiers 有权
标题翻译：放大器带宽限制
公开(公告)号：US08941438B2
公开(公告)日：2015-01-27
申请号：US13668790
申请日：2012-11-05
申请人： Analog Devices, Inc.
发明人： Ronald A. Kapusta , Youn-Jae Kook
IPC分类号： H03F1/02 , H03F1/34
CPC分类号： H03F1/34 , H03F3/45475 , H03F2203/45514 , H03F2203/45526 , H03F2203/45551
摘要： An apparatus for limiting the bandwidth of an amplifier provides for the design of an input impedance, a feedback impedance, and a load impedance such that the load impedance is proportional to the sum of the input impedance and feedback impedance. A sampling circuit has a load impedance including a resistor and capacitor in series to reduce the effective amplifier transconductance, which decreases bandwidth without increasing noise density or making this circuit more difficult to drive than a conventional circuit.
摘要翻译：用于限制放大器的带宽的装置提供输入阻抗，反馈阻抗和负载阻抗的设计，使得负载阻抗与输入阻抗和反馈阻抗的和成比例。采样电路具有包括串联的电阻器和电容器的负载阻抗，以减少有效的放大器跨导，其降低带宽而不增加噪声密度或使得该电路比常规电路更难驱动。

27. 发明申请

US20140132341A1 MULTI-MODE OPAMP-BASED CIRCUIT 有权
标题翻译：基于多模式OPAMP的电路
公开(公告)号：US20140132341A1
公开(公告)日：2014-05-15
申请号：US14073148
申请日：2013-11-06
申请人： MediaTek Inc.
发明人： Chi Yun WANG , Chih-Hong LOU
IPC分类号： H03F1/34 , H03F3/45
CPC分类号： H03F1/34 , H03F1/14 , H03F1/486 , H03F3/45475 , H03F3/45941 , H03F3/45946 , H03F2203/45138 , H03F2203/45512 , H03F2203/45514 , H03F2203/45576 , H03F2203/45644
摘要： A multi-mode OPAMP-based circuit is provided. An input amplifying stage amplifies a pair of input differential signals to provide a pair of intermediate differential signals. An output amplifying stage amplifies the pair of intermediate differential signals to provide a pair of output differential signals. A first capacitor is disposed in a first negative feedback loop of the output amplifying stage. A second capacitor is disposed in a second negative feedback loop of the output amplifying stage. A third capacitor is selectively disposed in a first positive feedback loop of the output amplifying stage or coupled to the first capacitor in parallel according to a control signal. A fourth capacitor is selectively disposed in a second positive feedback loop of the output amplifying stage or coupled to the second capacitor in parallel according to the control signal.
摘要翻译：提供了基于多模式OPAMP的电路。输入放大级放大一对输入差分信号以提供一对中间差分信号。输出放大级放大一对中间差分信号以提供一对输出差分信号。第一电容器设置在输出放大级的第一负反馈回路中。第二电容器设置在输出放大级的第二负反馈回路中。第三电容器选择性地设置在输出放大级的第一正反馈环路中，或者根据控制信号并联耦合到第一电容器。第四电容器选择性地设置在输出放大级的第二正反馈环路中，或者根据控制信号并联耦合到第二电容器。

28. 发明授权

US08552798B2 Method for offset compensation of a switched-capacitor amplifier and switched capacitor amplifier arrangement 失效
标题翻译：开关电容放大器和开关电容放大器布置的偏移补偿方法
公开(公告)号：US08552798B2
公开(公告)日：2013-10-08
申请号：US13217184
申请日：2011-08-24
申请人： Vincenzo Leonardo
发明人： Vincenzo Leonardo
IPC分类号： H03F1/02
CPC分类号： H03F3/45475 , H03F1/083 , H03F1/34 , H03F3/45928 , H03F2203/45212 , H03F2203/45512 , H03F2203/45514 , H03F2203/45586 , H03F2203/45588
摘要： A method for offset compensation of a switched-capacitor amplifier comprises a reset phase (φ1) and at least one working phase (φ2). An output voltage (Vout) of the amplifier (amp) is fed according to a damped feedback loop gain (AB(1)) to a first amplifier input (ain1) in the reset phase (φ1) as a function of an offset voltage (Voff). In the least one working phase (φ2), an offset of the amplifier (amp) is compensated as a function of the offset voltage (Voff) by superimposing the output voltage (Vout) onto an input voltage (Vin) of the amplifier (amp) according to a loop gain (AB(2)).
摘要翻译：开关电容放大器的偏移补偿方法包括复位阶段（phi1）和至少一个工作阶段（phi2）。放大器（amp）的输出电压（Vout）根据阻尼反馈环路增益（AB（1））馈送到作为偏移电压的函数的复位阶段（phi1）中的第一放大器输入（ain1） Voff）。在至少一个工作阶段（phi2）中，通过将输出电压（Vout）叠加到放大器（amp）的输入电压（Vin）上，放大器（amp）的偏移作为偏移电压（Voff）的函数被补偿）根据环路增益（AB（2））。

29. 发明授权

US08514014B2 Reset and resettable circuits 有权
标题翻译：复位和复位电路
公开(公告)号：US08514014B2
公开(公告)日：2013-08-20
申请号：US13023751
申请日：2011-02-09
申请人： Cathal Murphy , Michael Coln , Gary Carreau , Alain Valentin Guery , Bruce Amazeen
发明人： Cathal Murphy , Michael Coln , Gary Carreau , Alain Valentin Guery , Bruce Amazeen
IPC分类号： H03F1/02
CPC分类号： H03F1/34 , H03F3/45475 , H03F3/68 , H03F2203/45514
摘要： An amplifier system can include a feedback amplifier circuit having an amplifier, a feedback capacitor connected between an input terminal and an output terminal of the amplifier by at least one first switch, and a reset capacitor connected across the feedback capacitor by at least one second switch and between a pair of reference voltages by at least one third switch. During an input-signal processing phase of operation, a control circuit may close the at least one first switch and open the at least one second switch to electrically connect the feedback capacitor between the input and output terminals to engage feedback processing by the feedback amplifier circuit, and close the third switch to electrically connect the reset capacitor between the first and second voltages to charge the reset capacitor to a selectable voltage difference. During a reset phase of operation, the control circuit may open the at least one third switch, close the at least one second switch and open the at least one first switch to electrically connect the reset capacitor across the feedback capacitor to reset the feedback capacitor using the reset capacitor. The amplifier system can optionally include a plurality of the feedback amplifier circuits.
摘要翻译：放大器系统可以包括具有放大器的反馈放大器电路，通过至少一个第一开关连接在放大器的输入端子和输出端子之间的反馈电容器以及通过至少一个第二开关连接在反馈电容器上的复位电容器以及通过至少一个第三开关在一对参考电压之间。在操作的输入信号处理阶段期间，控制电路可以关闭所述至少一个第一开关并且打开所述至少一个第二开关以将所述反馈电容器电连接在所述输入和输出端子之间，以接收所述反馈放大器电路的反馈处理并且关闭第三开关以在第一和第二电压之间电连接复位电容器，以将复位电容器充电至可选择的电压差。在复位操作阶段期间，控制电路可以打开至少一个第三开关，闭合至少一个第二开关并且打开至少一个第一开关，以使反复电容器上的复位电容器电连接以使反馈电容器复位，以使用复位电容。放大器系统可以可选地包括多个反馈放大器电路。

30. 发明申请

US20130015916A1 Common-Mode Amplifier Step Response 有权
标题翻译：共模放大器阶跃响应
公开(公告)号：US20130015916A1
公开(公告)日：2013-01-17
申请号：US13325750
申请日：2011-12-14
申请人： Quan Wan , Alasdair Alexander
发明人： Quan Wan , Alasdair Alexander
IPC分类号： H03F3/45 , H03F3/68
CPC分类号： H03F3/45995 , H03F3/211 , H03F3/45475 , H03F3/45977 , H03F2200/261 , H03F2200/375 , H03F2203/45138 , H03F2203/45514 , H03F2203/45521 , H03F2203/45551 , H03F2203/45634 , H03F2203/45682 , H03F2203/45726
摘要： An auto-zero amplifier includes a main amplifier for amplifying an input signal; the main amplifier receives an offset-correction signal for cancelling an offset at a first common-mode level of the input signal. At the first common-mode level, the offset-correction signal is based on a first value stored using a first offset-storage element. When a change is detected in the input common-mode from the first level to a second level, the first offset-storage element is switched out and a second offset-storage element, having a second value based on the second common-mode level, is switched in.
摘要翻译：自动调零放大器包括用于放大输入信号的主放大器; 主放大器接收用于抵消输入信号的第一共模电平处的偏移的偏移校正信号。在第一共模电平下，偏移校正信号基于使用第一偏移存储元件存储的第一值。当在从第一级到第二级的输入共模中检测到改变时，第一偏移存储元件被切换，并且具有基于第二共模电平的第二值的第二偏移存储元件，被切换

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