专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US09306518B2 Voltage regulators, amplifiers, memory devices and methods 有权
标题翻译：稳压器，放大器，存储器件和方法
公开(公告)号：US09306518B2
公开(公告)日：2016-04-05
申请号：US14287381
申请日：2014-05-27
申请人： MICRON TECHNOLOGY, INC.
发明人： Dong Pan
IPC分类号： G11C5/14 , H03F3/45 , G11C7/12 , G11C7/06 , G11C11/4091 , G11C11/4097
CPC分类号： H03F3/45071 , G11C5/147 , G11C7/06 , G11C7/065 , G11C7/12 , G11C11/4091 , G11C11/4097 , H03F3/45183 , H03F2203/45264
摘要： Circuits, devices and methods are provided, such as an amplifier (e.g., a voltage regulator) that includes a feedback circuit that supplies negative feedback through a feedback path. One such feedback path includes a capacitance coupled in series with a “one-way” isolation circuit through which a feedback signal is coupled. The “one-way” isolation circuit my allow the feedback signal to be coupled from a “downstream” node, such as an output node, to an “upstream” node, such as a node at which an error signal is generated to provide negative feedback. However, the “one-way” isolation circuit may substantially prevent variations in the voltage at the upstream node from being coupled to the capacitance in the isolation circuit. As a result, the voltage at the upstream node may quickly change since charging and discharging of the capacitance responsive to voltage variations at the upstream node may be avoided.
摘要翻译：提供了电路，装置和方法，例如放大器（例如，电压调节器），其包括通过反馈路径提供负反馈的反馈电路。一个这样的反馈路径包括与“单向”隔离电路串联耦合的电容，通过该电路耦合反馈信号。 “单向”隔离电路允许反馈信号从诸如输出节点的“下游”节点耦合到“上游”节点，例如产生错误信号以产生负值的节点反馈。然而，“单向”隔离电路可以基本上防止上游节点处的电压变化与隔离电路中的电容耦合。结果，可以避免上游节点处的电压响应于上游节点处的电压变化而对电容进行充电和放电，所以上游节点处的电压可能快速变化。

42. 发明申请

US20150229280A1 NONLINEAR CLASS AB INPUT STAGE 有权
标题翻译：非线性AB类输入级
公开(公告)号：US20150229280A1
公开(公告)日：2015-08-13
申请号：US14619860
申请日：2015-02-11
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： VADIM V. IVANOV , RAVINTHIRAN BALASINGAM
IPC分类号： H03F1/34 , H03F3/21 , H03G3/00 , H03F3/45
CPC分类号： H03G3/30 , H03F1/086 , H03F1/34 , H03F3/21 , H03F3/45183 , H03F3/45273 , H03F3/45475 , H03F2200/123 , H03F2200/129 , H03F2200/153 , H03F2203/45116 , H03F2203/45264 , H03G1/0035
摘要： A circuit includes a differential input stage amplifier that receives a differential input voltage and generates an output voltage based on a difference in the differential input voltage. A feedback loop provides feedback from an output of the differential input stage amplifier to input tail current of the differential input stage amplifier. The feedback loop enables class AB operation of the differential input stage amplifier. At least one gain reducer is operatively coupled to the feedback loop to reduce the gain of the feedback loop. The gain reducer has a resistance value that varies inversely proportional to loop current in the feedback loop to reduce the gain of the feedback loop as loop current increases.
摘要翻译：电路包括差分输入级放大器，其接收差分输入电压并且基于差分输入电压的差产生输出电压。反馈环路提供来自差分输入级放大器的输出的反馈以输入差分输入级放大器的尾部电流。反馈环路使得差分输入级放大器的AB类工作成为可能。至少一个增益减小器可操作地耦合到反馈回路以减小反馈回路的增益。增益减小器具有与反馈环路中的回路电流成反比的电阻值，以在环路电流增加时降低反馈回路的增益。

43. 发明授权

US09036825B2 Audio signal correction and calibration for a room environment 有权
标题翻译：音频信号校正和校准用于室内环境
公开(公告)号：US09036825B2
公开(公告)日：2015-05-19
申请号：US13710690
申请日：2012-12-11
申请人： Fawad Nackvi
发明人： Fawad Nackvi
IPC分类号： H04B3/20 , H03G5/16 , H03F1/06 , H03F3/181 , H03F3/189 , H03F3/66 , H04R1/20 , H04R1/22 , H04R1/24 , H04R1/26 , H04R3/04 , H04R9/18 , H04R11/14 , H04R15/02 , H04R17/10 , H04R25/00 , H04S7/00 , A61F2/76
CPC分类号： H04R3/04 , A61F2002/765 , H03F1/06 , H03F3/181 , H03F3/189 , H03F3/66 , H03F2200/333 , H03F2200/348 , H03F2200/429 , H03F2200/451 , H03F2203/45264 , H03G5/165 , H04R1/20 , H04R1/22 , H04R1/227 , H04R1/24 , H04R1/26 , H04R9/18 , H04R11/14 , H04R15/02 , H04R17/10 , H04R25/353 , H04R25/48 , H04R25/558 , H04R2201/028 , H04R2205/021 , H04R2205/026 , H04R2227/005 , H04S7/307 , H04S2400/07
摘要： Disclosed are an apparatus and method of processing an audio signal to optimize audio for a room environment. One example method of operation may include recording the audio signal generated within a particular room environment and processing the audio signal to create an original frequency response based on the audio signal. The method may also include identifying a target sub-region of the frequency response which has a predetermined area percentage of a total area under a curve generated by the frequency response, determining whether the target sub-region is a narrow energy region, creating a filter to adjust the frequency response, and applying the filter to the audio signal.
摘要翻译：公开了一种处理音频信号以优化房间环境的音频的装置和方法。操作的一个示例方法可以包括记录在特定房间环境内生成的音频信号并处理音频信号以基于音频信号创建原始频率响应。该方法还可以包括识别频率响应的目标子区域，其具有由频率响应产生的曲线下的总面积的预定面积百分比，确定目标子区域是否为窄能区域，创建过滤器以调整频率响应，并将滤波器应用于音频信号。

44. 发明申请

US20130106512A1 FOLDED CASCODE OPERATIONAL AMPLIFIER 有权
标题翻译：折叠货架操作放大器
公开(公告)号：US20130106512A1
公开(公告)日：2013-05-02
申请号：US13807304
申请日：2011-11-18
申请人： Liang Cheng
发明人： Liang Cheng
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F3/3016 , H03F3/3028 , H03F3/45076 , H03F3/45183 , H03F2200/456 , H03F2203/45248 , H03F2203/45264 , H03F2203/45308 , H03F2203/45352 , H03F2203/45526 , H03F2203/45674 , H03F2203/45692
摘要： A folded cascode operational amplifier is disclosed. The folded cascode operational amplifier includes a first current source, a second current source, and a first voltage terminal connected to the first current source and the second current source. The folded cascode operational amplifier also includes a first input-transistor connected to the first current source in series, and a second input-transistor connected to the second current source in series. Further, the folded cascode operational amplifier includes a tail current source connected to a connection point between the first input-transistor and the second input-transistor, a load current source, and a second voltage terminal connected to the tail current source and the load current source. The folded cascode operational amplifier also includes an output-transistor connected to the load current source, and an output-terminal arranged between the second current source and the second input-transistor and connected to the output-transistor. The second current source is a mirroring current source of the first current source, and a ratio of a current passing through the second current source to a current passing through the first current source is greater than one.
摘要翻译：公开了折叠共源共栅运算放大器。折叠共源共栅运算放大器包括第一电流源，第二电流源和连接到第一电流源和第二电流源的第一电压端。折叠共源共栅运算放大器还包括串联连接到第一电流源的第一输入晶体管和串联连接到第二电流源的第二输入晶体管。此外，折叠共源共栅运算放大器包括连接到第一输入晶体管和第二输入晶体管之间的连接点的尾电流源，负载电流源和连接到尾电流源和负载电流的第二电压端资源。折叠的共源共栅运算放大器还包括连接到负载电流源的输出晶体管和布置在第二电流源和第二输入晶体管之间并连接到输出晶体管的输出端。第二电流源是第一电流源的镜像电流源，并且通过第二电流源的电流与通过第一电流源的电流的比值大于1。

45. 发明申请

US20110235455A1 VOLTAGE REGULATORS, AMPLIFIERS, MEMORY DEVICES AND METHODS 有权
标题翻译：电压调节器，放大器，存储器件和方法
公开(公告)号：US20110235455A1
公开(公告)日：2011-09-29
申请号：US12749281
申请日：2010-03-29
申请人： DONG PAN
发明人： DONG PAN
IPC分类号： G11C5/14 , H03F1/34
CPC分类号： H03F3/45071 , G11C5/147 , G11C7/06 , G11C7/065 , G11C7/12 , G11C11/4091 , G11C11/4097 , H03F3/45183 , H03F2203/45264
摘要： Circuits, devices and methods are provided, such as an amplifier (e.g., a voltage regulator) that includes a feedback circuit that supplies negative feedback through a feedback path. One such feedback path includes a capacitance coupled in series with a “one-way” isolation circuit through which a feedback signal is coupled. The “one-way” isolation circuit may allow the feedback signal to be coupled from a “downstream” node, such as an output node, to an “upstream” node, such as a node at which an error signal is generated to provide negative feedback. However, the “one-way” isolation circuit may substantially prevent variations in the voltage at the upstream node from being coupled to the capacitance in the isolation circuit. As a result, the voltage at the upstream node may quickly change since charging and discharging of the capacitance responsive to voltage variations at the upstream node may be avoided.
摘要翻译：提供了电路，装置和方法，例如放大器（例如，电压调节器），其包括通过反馈路径提供负反馈的反馈电路。一个这样的反馈路径包括与“单向”隔离电路串联耦合的电容，通过该电路耦合反馈信号。 “单向”隔离电路可以允许反馈信号从诸如输出节点的“下游”节点耦合到“上游”节点，例如产生误差信号以产生负值的节点反馈。然而，“单向”隔离电路可以基本上防止上游节点处的电压变化与隔离电路中的电容耦合。结果，可以避免上游节点处的电压响应于上游节点处的电压变化而对电容进行充电和放电，所以上游节点处的电压可能快速变化。

46. 发明授权

US07515895B2 System and method for on-chip filter tuning 有权
标题翻译：用于片上滤波器调谐的系统和方法
公开(公告)号：US07515895B2
公开(公告)日：2009-04-07
申请号：US11050107
申请日：2005-02-04
申请人： Pieter Vorenkamp , Klaas Bult , Frank Carr
发明人： Pieter Vorenkamp , Klaas Bult , Frank Carr
IPC分类号： H04B1/10
CPC分类号： H03D3/18 , H01F17/0006 , H01F17/0013 , H01F27/34 , H01F27/40 , H01F27/42 , H01F2017/0053 , H01F2021/125 , H01L23/5227 , H01L27/0248 , H01L27/0251 , H01L27/08 , H01L2924/0002 , H01L2924/3011 , H03B5/04 , H03B5/364 , H03D7/161 , H03D7/18 , H03F1/26 , H03F1/3211 , H03F3/195 , H03F3/45183 , H03F3/45188 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/372 , H03F2200/447 , H03F2200/63 , H03F2203/45264 , H03F2203/45286 , H03G1/0023 , H03G1/0029 , H03G3/3052 , H03H7/25 , H03H11/04 , H03H11/1291 , H03H11/53 , H03H11/54 , H03H19/004 , H03J1/0075 , H03J3/04 , H03J3/08 , H03J3/185 , H03J2200/10 , H03L7/10 , H03L7/183 , H03L7/23 , H03L2207/06 , H01L2924/00
摘要： An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator. The VCOs in the PLLs are centered using a control circuit to center the tuning capacitance range. A differential crystal oscillator is advantageously used as a frequency reference. Differential signal transmission is advantageously used throughout the receiver.
摘要翻译：描述了基本上在单个CMOS集成电路上实现的具有信道选择和图像抑制的集成接收机。接收机前端提供可编程衰减和可编程增益低噪声放大器。频率转换电路有利地使用集成到衬底上的LC滤波器与图像抑制混合器结合，以提供足够的图像频率抑制。过滤器调谐和电感Q补偿温度在芯片上执行。滤波器采用多轨螺旋电感。使用本地振荡器调整滤波器以调整替代滤波器，以及滤波器组件值期间的频率缩放与被调谐的滤波器的频率缩放。结合滤波，频率规划提供了额外的镜像抑制。片上本地振荡器信号产生方法的有利选择是通过PLL带外本地振荡和通过频带本地振荡器的直接合成。 PLL中的VCO使用控制电路居中，使调谐电容范围居中。差分晶体振荡器有利地用作频率参考。差分信号传输有利地用于整个接收机。

47. 发明申请

US20080183098A1 CHOPPER-STABILIZED INSTRUMENTATION AMPLIFIER FOR IMPEDANCE MEASUREMENT 有权
标题翻译：用于阻抗测量的CHOPPER-STABILIZED INSTRUMENTATION AMPLIFIER
公开(公告)号：US20080183098A1
公开(公告)日：2008-07-31
申请号：US12058066
申请日：2008-03-28
申请人： Timothy J. Denison , Wesley A. Santa
发明人： Timothy J. Denison , Wesley A. Santa
IPC分类号： A61B5/053 , H03F3/38 , A61N1/00
CPC分类号： H03F3/387 , A61B5/0002 , A61B5/04004 , A61B5/0428 , A61B5/053 , A61B5/103 , A61B5/7203 , A61B5/7217 , A61B5/7228 , A61B2560/0209 , A61N1/36521 , A61N1/3702 , A61N1/3704 , A61N2001/083 , H03F1/26 , H03F3/45183 , H03F3/45192 , H03F3/45475 , H03F3/45744 , H03F3/45968 , H03F2200/153 , H03F2200/252 , H03F2200/261 , H03F2200/271 , H03F2200/372 , H03F2200/375 , H03F2203/45028 , H03F2203/45138 , H03F2203/45212 , H03F2203/45264 , H03F2203/45396 , H03F2203/45512 , H03F2203/45534 , H03F2203/45551
摘要： This disclosure describes a chopper stabilized instrumentation amplifier. The amplifier is configured to achieve stable measurements at low frequency with very low power consumption. The instrumentation amplifier uses a differential architecture and a mixer amplifier to substantially eliminate noise and offset from an output signal produced by the amplifier. Dynamic limitations, i.e., glitching, that result from chopper stabilization at low power are substantially eliminated through a combination of chopping at low impedance nodes within the mixer amplifier and feedback. The signal path of the amplifier operates as a continuous time system, providing minimal aliasing of noise or external signals entering the signal pathway at the chop frequency or its harmonics. The amplifier can be used in a low power system, such as an implantable medical device, to provide a stable, low-noise output signal.
摘要翻译：本公开描述了一种斩波稳定仪表放大器。放大器被配置为以低功耗实现稳定的低频测量。仪表放大器使用差分架构和混频器放大器来基本上消除由放大器产生的输出信号的噪声和偏移。通过在混频放大器和反馈中的低阻抗节点处的斩波的组合，基本上消除了在低功率下由斩波器稳定所产生的动态限制，即，短路。放大器的信号路径作为连续时间系统工作，在斩波频率或其谐波处提供噪声或外部信号的最小混叠进入信号通路。该放大器可用于诸如可植入医疗设备的低功率系统中，以提供稳定的低噪声输出信号。

48. 发明授权

US07271660B1 Selectively adding auxiliary frequency compensation depending on the behaviour of an output transistor of a rail-to-rail operational amplifier 有权
标题翻译：根据轨至轨运算放大器的输出晶体管的行为选择性地添加辅助频率补偿
公开(公告)号：US07271660B1
公开(公告)日：2007-09-18
申请号：US11127845
申请日：2005-05-11
申请人： Kenneth J. Carroll
发明人： Kenneth J. Carroll
IPC分类号： H03F1/14
CPC分类号： H03F3/45475 , H03F1/083 , H03F3/3066 , H03F3/343 , H03F2203/30057 , H03F2203/45118 , H03F2203/45264
摘要： A frequency compensation device for providing added compensation to an operational amplifier, such as a bipolar or MOS rail-to-rail output operational amplifier, when the output device of the operational amplifier is in saturation. The device comprises a detector circuit for detecting those conditions which can cause the output device to go into saturation. When saturation is detected, an auxiliary frequency compensation device provides added frequency. Thereby, in a normal mode of operation, the op-amp is not overcompensated. Yet, when an output device becomes saturated, the auxiliary compensation is added to improve stability and prevent the op-amp from becoming oscillatory.
摘要翻译：一种频率补偿装置，用于当运算放大器的输出装置处于饱和状态时，向诸如双极或MOS轨到轨输出运算放大器的运算放大器提供附加补偿。该装置包括用于检测可导致输出装置进入饱和状态的检测器电路。当检测到饱和时，辅助频率补偿装置提供增加的频率。因此，在正常操作模式下，运算放大器不会被过度补偿。然而，当输出装置饱和时，添加辅助补偿以提高稳定性并防止运算放大器振荡。

49. 发明申请

US20060291312A1 CMOS amplifiers with frequency compensating capacitors 有权
标题翻译：具有频率补偿电容器的CMOS放大器
公开(公告)号：US20060291312A1
公开(公告)日：2006-12-28
申请号：US11494027
申请日：2006-07-27
申请人： Leonard Forbes , David Cuthbert
发明人： Leonard Forbes , David Cuthbert
IPC分类号： G11C7/02
CPC分类号： H03F3/45183 , H03F1/08 , H03F1/14 , H03F3/45273 , H03F2203/45264 , H03F2203/45332
摘要： The frequency and transient responses of a CMOS differential amplifier are improved by employing one or more compensating capacitors. A compensating capacitor coupled to a differential input of the CMOS differential amplifier is used to inject current into the differential input, such that the net current flow through the gate-to-drain capacitance of a MOS input transistor approaches zero. Thus, the Miller effect with respect to that MOS input transistor is substantially reduced or eliminated, resulting in increased frequency and transient responses for the CMOS differential amplifier. In one embodiment, the CMOS differential amplifier is a CMOS current mirror differential amplifier.
摘要翻译： CMOS差分放大器的频率和瞬态响应通过采用一个或多个补偿电容来改善。耦合到CMOS差分放大器的差分输入的补偿电容器用于将电流注入到差分输入端中，使得通过MOS输入晶体管的栅 - 漏电容的净电流流过零。因此，相对于该MOS输入晶体管的米勒效应被显着降低或消除，导致CMOS差分放大器的频率和瞬态响应增加。在一个实施例中，CMOS差分放大器是CMOS电流镜差分放大器。

50. 发明申请

US20060261896A1 CMOS amplifiers with frequency compensating capacitors 有权
公开(公告)号：US20060261896A1
公开(公告)日：2006-11-23
申请号：US11493966
申请日：2006-07-27
申请人： Leonard Forbes , David Cuthbert
发明人： Leonard Forbes , David Cuthbert
IPC分类号： H03F1/14
CPC分类号： H03F3/45183 , H03F1/08 , H03F1/14 , H03F3/45273 , H03F2203/45264 , H03F2203/45332
摘要： The frequency and transient responses of a CMOS differential amplifier are improved by employing one or more compensating capacitors. A compensating capacitor coupled to a differential input of the CMOS differential amplifier is used to inject current into the differential input, such that the net current flow through the gate-to-drain capacitance of a MOS input transistor approaches zero. Thus, the Miller effect with respect to that MOS input transistor is substantially reduced or eliminated, resulting in increased frequency and transient responses for the CMOS differential amplifier. In one embodiment, the CMOS differential amplifier is a CMOS current mirror differential amplifier.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式