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1. 发明公开

EP2804316A3 Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier 审中-公开
标题翻译：信号处理电路，用于溶解和交错式多路径反射镜放大器数字转换器
公开(公告)号：EP2804316A3
公开(公告)日：2015-09-16
申请号：EP14164157.1
申请日：2014-04-10
申请人： Renesas Electronics Corporation
发明人： FUNATO, Yoshihiro , KUMAMOTO, Toshio , YOSHIZAWA, Tomoaki , KUROOKA, Kazuaki
IPC分类号： H03F3/393 , H03F3/00 , H03F3/45
CPC分类号： H03F3/2171 , H03F3/005 , H03F3/393 , H03F3/45179 , H03F3/45192 , H03F3/45762 , H03F3/45946 , H03F2200/264 , H03F2200/271 , H03F2200/375 , H03F2200/408 , H03F2200/411 , H03F2200/81 , H03F2203/45012 , H03F2203/45028 , H03F2203/45116 , H03F2203/45136 , H03F2203/45138 , H03F2203/45174 , H03F2203/45212 , H03F2203/45512 , H03F2203/45528 , H03F2203/45558 , H03F2203/45594 , H03F2203/45601 , H03F2203/45604 , H03F2203/45631 , H03F2203/45632 , H03F2203/45634 , H03F2203/45641 , H03F2203/45681 , H03F2203/45698 , H03F2203/45726
摘要： A signal processing circuit includes a chopper amplifier (1) that has a differential amplifier circuit (AMP1) that amplifies differential input signals Vsp(t) and Vsm(t), and an adder circuit (1B) that generates an addition signal Vfil(t) by addition of the chopper output signal Vsub(t) that the chopper amplifier (1) generates. Differential signals inputted into the differential amplifier circuit (AMP1) are interchanged for every first phase period and second phase period, and the adder circuit (1B) generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period.
摘要翻译：一种信号处理电路，包括斩波器放大器（1）也有一个差分放大器电路（AMP1）做放大差分输入信号V SP（t）和VSM（t）和到加法器电路（1B）那样生成加法信号Vfil（吨）通过加入斩波输出信号V子（t）的所做的斩波放大器（1）基因率。输入到差分放大器电路（AMP 1）的差分信号被互换对于每一个第一相位周期和第二相位期间，和所述加法器电路（1B）基因速率通过加入在第一阶段期间的斩波器的输出信号的和在所述第二相加信号相期。

2. 发明公开

EP1858160A1 Amplifier arrangement 审中-公开
标题翻译： Verstärkeranordnung
公开(公告)号：EP1858160A1
公开(公告)日：2007-11-21
申请号：EP06252549.8
申请日：2006-05-16
申请人： STMicroelectronics (Research & Development) Limited
发明人： Thies, William
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F1/3211 , H03F3/45632 , H03F2203/45028 , H03F2203/45122 , H03F2203/45318 , H03F2203/45366 , H03F2203/45471 , H03G3/001
摘要： An integrated circuit for amplifying electrical signals received from a light sensor/ detector in an optical disc reader comprises a transconductor circuit and a transimpedence circuit coupled together. The a transconductor circuit comprising a first cross-coupled differential pair having input terminals arranged to receive a differential voltage and intermediate output terminals arranged to produce a differential current. The a transimpedence circuit comprising a second cross-coupled differential pair with input and output connected with negative feedback and having input terminals connected to the intermediate output terminals.
摘要翻译：用于放大从光盘读取器中的光传感器/检测器接收的电信号的集成电路包括耦合在一起的跨导电路和跨导电路。一种跨导电路，包括具有布置成接收差分电压的输入端和被布置成产生差分电流的中间输出端的第一交叉耦合差分对。一种跨导电路包括第二交叉耦合差分对，其输入和输出与负反馈连接并且具有连接到中间输出端子的输入端子。

3. 发明公开

EP1850477A2 Operational amplifier 审中-公开
标题翻译： Operationsverstärker
公开(公告)号：EP1850477A2
公开(公告)日：2007-10-31
申请号：EP07106708.6
申请日：2007-04-23
申请人： Qimonda AG
发明人： Gopalakrishnan, Karthik , Partovi, Hamid , Ravezzi, Luca
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F2203/45028 , H03F2203/45548
摘要： An operational amplifier (22) including a first current mirror (32), a second current mirror (34), and a differential pair of transistors (36). The differential pair of transistors (36) are configured to receive two inputs (VIN-, VIN+) to direct current through the first current mirror (32) and the second current mirror (34). The first current mirror (32) provides a first current to a first high impedance node (60) and the second current mirror (34) provides a second current to a second high impedance node (28).
摘要翻译：一种运算放大器（22），包括第一电流镜（32），第二电流镜（34）和差分对晶体管（36）。晶体管（36）的差分对被配置为接收两个输入（VIN-，VIN +）以引导电流通过第一电流镜（32）和第二电流镜（34）。第一电流镜（32）向第一高阻抗节点（60）提供第一电流，并且第二电流镜（34）向第二高阻抗节点（28）提供第二电流。

4. 发明授权

EP1122882B1 Amplifier circuit 有权
标题翻译：放大器电路
公开(公告)号：EP1122882B1
公开(公告)日：2007-10-17
申请号：EP00127728.4
申请日：2000-12-18
申请人： Semiconductor Technology Academic Research Center
发明人： Wada, Kazuyuki , Takagi, Shigetaka , Fujii, Nobuo
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F1/301 , H03F3/45475 , H03F2200/513 , H03F2203/45028 , H03F2203/45138

5. 发明授权

EP1239585B1 DIFFERENTIAL AMPLIFIER 有权
标题翻译：差动放大器
公开(公告)号：EP1239585B1
公开(公告)日：2007-10-10
申请号：EP00978050.3
申请日：2000-12-01
申请人： YAMAHA CORPORATION
发明人： MAEJIMA, Toshio, c/o Yamaha Corporation
IPC分类号： H03F3/45 , H03F3/30
CPC分类号： H03F3/45179 , H03F3/3028 , H03F3/45192 , H03F2203/45028 , H03F2203/45292 , H03F2203/45651
摘要： A differential amplifier circuit comprises an input circuit (10) for generating the difference in voltage between a positive input signal and a negative input signal; a feedback bias circuit (20) for providing a bias voltage corresponding to the differential voltage signal in response to the differential voltage signal supplied by the input circuit (10) and for feeding the output current back to control the bias voltage; an output circuit (30) for supplying load with the output current corresponding to the bias voltage; and a current detector circuit (40) for detecting the output current and supplying it to the feedback bias circuit (20). The differential amplifier circuit performs as a class-AB amplifier with the bias current value being close to zero if the differential voltage signal is zero.

6. 发明公开

EP1649596A4 VARIABLE GAIN AMPLIFIER SYSTEM 审中-公开
标题翻译： VERSTÄRKERSYSTEMMIT VARIABLERVERSTÄRKUNG
公开(公告)号：EP1649596A4
公开(公告)日：2006-10-04
申请号：EP04777161
申请日：2004-06-28
申请人： SKYWORKS SOLUTIONS INC
发明人： SOWLATI TIRDAD
IPC分类号： H03F3/45 , G06G7/12 , H03G1/00
CPC分类号： H03F3/45179 , H03F3/45098 , H03F3/45107 , H03F3/45475 , H03F2200/294 , H03F2200/372 , H03F2203/45028 , H03F2203/45466 , H03F2203/45492 , H03G1/0023
摘要： A system (650, 690) for controlling gain in a polar loop (550) is disclosed. Embodiments of the invention provide for a substantially constant gain tolerant of changes in supply voltage, ambient temperature, and/or manufacturing process.
摘要翻译：公开了一种用于控制极性回路（550）中的增益的系统（650,690）。本发明的实施例提供了对电源电压，环境温度和/或制造过程的变化的基本上恒定的增益容忍。

7. 发明授权

EP0824783B1 BALANCED DOUBLE-FOLDED CASCODE OPERATIONAL AMPLIFIER 失效
标题翻译：平衡式双折码CASCODE运算放大器
公开(公告)号：EP0824783B1
公开(公告)日：2002-12-04
申请号：EP95931042.6
申请日：1995-08-31
申请人： ANALOG DEVICES, INCORPORATED
发明人： BUTLER, James, R.
IPC分类号： H03F3/45 , H03F3/30
CPC分类号： H03F3/4521 , H03F3/3067 , H03F3/45071 , H03F3/45121 , H03F2200/258 , H03F2203/45028 , H03F2203/45232 , H03F2203/45244 , H03F2203/45281 , H03F2203/45366 , H03F2203/45508 , H03F2203/45552 , H03F2203/45568
摘要： A double-folded cascode operational amplifier capable of operating with rail-to-rail common mode inputs includes two differential transistor pairs (Q1, Q2, Q6, Q7) of opposite conductivity, with an associated current source and input resistor pair for each pair of input transistors. Its gain stage (6) includes two interconnected pairs of folded cascode gain transistors (Q3, Q4, Q12, Q13) that are connected to the two pairs of input resistors so that a change in the differential input signal produces a corresponding change in the gain stage output via the resistors. An output stage (8) includes transistor-resistor circuitry to bias a pair of output transistors (Q20, Q21) in opposite directions and produce a net amplifier output at their junction. The gain transistor voltages are balanced by a voltage shifting circuit to inhibit input voltage offsets.
摘要翻译：能够在轨到轨共模输入下工作的双重折叠共源共栅运算放大器包括两个导电率相反的差分晶体管对（Q1，Q2，Q6，Q7），每对具有相关的电流源和输入电阻对输入晶体管。其增益级（6）包括连接到两对输入电阻器的两对互连的折叠共源共栅增益晶体管（Q3，Q4，Q12，Q13），使得差分输入信号的变化产生增益的相应变化通过电阻输出级。输出级（8）包括晶体管 - 电阻器电路，用于以相反的方向偏置一对输出晶体管（Q20，Q21），并在其结点处产生净放大器输出。增益晶体管电压由电压转换电路平衡以抑制输入电压偏移。

8. 发明公开

EP1239585A1 DIFFERENTIAL AMPLIFIER 有权
标题翻译： DIFFERENTIALVERSTÄRKER
公开(公告)号：EP1239585A1
公开(公告)日：2002-09-11
申请号：EP00978050.3
申请日：2000-12-01
申请人： YAMAHA CORPORATION
发明人： MAEJIMA, Toshio, c/o Yamaha Corporation
IPC分类号： H03F3/45 , H03F3/30
CPC分类号： H03F3/45179 , H03F3/3028 , H03F3/45192 , H03F2203/45028 , H03F2203/45292 , H03F2203/45651
摘要： A differential amplifier circuit of the present invention comprises an input circuit 10 for producing a difference voltage signal between a positive input signal and a negative input signal, a feedback bias circuit 20 for inputting the difference voltage signal supplied from the input circuit 10 to provide a bias voltage corresponding to the difference voltage signal and for performing a feedback control on the bias voltage by feeding back an output current, an output circuit 30 for supplying a load with the output current corresponding to the bias voltage, and a current detection circuit 40 for detecting the output current to provide it to the feedback bias circuit 20. The differential amplifier circuit performs class-AB amplification in such a way that the bias voltage provides a current value close to zero when the difference voltage signal is substantially zero.
摘要翻译：本发明的差分放大电路包括用于产生正输入信号和负输入信号之间的差分电压信号的输入电路10，用于输入从输入电路10提供的差分电压信号的反馈偏置电路20，对应于差分电压信号的偏置电压，并且通过反馈输出电流来执行对偏置电压的反馈控制;输出电路30，用于向负载提供与偏置电压相对应的输出电流;以及电流检测电路40，用于检测输出电流以将其提供给反馈偏置电路20.差分放大器电路以这样的方式执行AB类放大，使得当差分电压信号基本为零时，偏置电压提供接近零的电流值。

9. 发明公开

EP1122882A2 Amplifier circuit 有权
标题翻译： Verstärkerschaltung
公开(公告)号：EP1122882A2
公开(公告)日：2001-08-08
申请号：EP00127728.4
申请日：2000-12-18
申请人： Semiconductor Technology Academic Research Center
发明人： Wada, Kazuyuki , Takagi, Shigetaka , Fujii, Nobuo
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F1/301 , H03F3/45475 , H03F2200/513 , H03F2203/45028 , H03F2203/45138
摘要： A semiconductor integrated circuit comprises an amplifier circuit including a current output amplifier (1), a load resistor (2) having one end connected to an output terminal of the current output amplifier and a voltage control circuit (3) having an input terminal connected to the one end of the load resistor and an output terminal connected to an other end of the load resistor. The input terminal of the amplifier circuit serves as an input terminal of the current output amplifier, and the output terminals of the amplifier circuit serve as the individual ends of the load resistor.
摘要翻译：一种半导体集成电路，包括：放大电路，包括电流输出放大器（1），一端连接到电流输出放大器的输出端的负载电阻（2）和电压控制电路（3），输入端连接到负载电阻的一端和连接到负载电阻的另一端的输出端子。放大电路的输入端作为电流输出放大器的输入端，放大电路的输出端作为负载电阻的各端。

10. 发明公开

EP0809354A1 Differential amplifier 失效
标题翻译： Differenzverstärker
公开(公告)号：EP0809354A1
公开(公告)日：1997-11-26
申请号：EP97107962.9
申请日：1997-05-15
申请人： NEC CORPORATION
发明人： Sone, Kazuya
IPC分类号： H03F3/45
CPC分类号： H03F3/4508 , H03F3/45094 , H03F3/45179 , H03F3/45192 , H03F3/45291 , H03F2203/45028
摘要： This invention is directed to providing a differential amplifier that can increase voltage gain at low frequency and that can be applied in signal processing circuits of high accuracy. Such a differential amplifier is provided in its output section with field effect transistor M5 having its source terminal connected to power terminal 4, its gate terminal connected to bias power terminal 7, and its drain terminal connected to the drain terminal of field effect transistor M3; and field effect transistor M6 having its source terminal connected to power terminal 4, its gate terminal connected to the drain terminals of field effect transistors M3 and M5, and its drain terminal connected to output terminal 3 and the drain terminal of field effect transistor M4.
摘要翻译：本发明旨在提供一种差分放大器，其可以增加低频下的电压增益，并可以高精度地应用在信号处理电路中。这种差分放大器在其输出部分中设置有场效应晶体管M5，其场效应源极端子连接到电源端子4，其栅极端子连接到偏置电源端子7，其漏极端子连接到场效应晶体管M3的漏极端子; 场效应晶体管M6的源极端子连接到电源端子4，其栅极端子连接到场效应晶体管M3和M5的漏极端子，其漏极端子连接到场效应晶体管M4的输出端子3和漏极端子。

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