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    • 3. 发明申请
    • A HIGH PERFORMANCE INTERMEDIATE STAGE CIRCUIT FOR A RAIL-TO-RAIL INPUT/OUTPUT CMOS OPERATIONAL AMPLIFIER
    • 用于轨至轨输入/输出CMOS操作放大器的高性能中间级电路
    • WO02056459A2
    • 2002-07-18
    • PCT/US2001/048844
    • 2001-12-11
    • H03F3/30H03F3/45H03F
    • H03F3/3028H03F3/45192H03F3/45219H03F2203/45626
    • An intermediate stage for a rail-to-rail input/output CMOS opamp includes a floating current source separating two current mirrors (151-154, 155-158), where the ideal current source includes a floating current mirror (500,501,502,503,504,505) enabling an output quiescent current to be provided which does not vary with changes in the voltage rails or the common-mode input voltage, and enabling elimination of input offset caused by the mismatch of the two current sources (164,166). The NMOS transistor (502) has a source-drain path provided in series with a PMOS transistor (505) serving to connect the current mirrors (151-158) and to eliminate input offset. The source of transistor (500) is separated from the Vss and VDD rails by a PMOS transistor (503) and current source (508) enabling the current mirror (500,501,502,503,504,505) to float so that transistors (502) and (505) will each have a gate to source bias voltage independent of changes in the voltage on the voltage supply rails VDD and Vss and independent of any input common-mode voltage offset. Voltage clamping transistors (600) and (602) can further be included to enable the current mirror transistors (151-154) and (155-158) to be low voltage devices to increase overall operation speed and device matching.
    • 用于轨到轨输入/输出CMOS运算放大器的中间级包括分离两个电流镜(151-154,155-158)的浮动电流源,其中理想电流源包括使能输出的浮动电流镜(500,501,502,503,504,505) 提供的静态电流不随电压轨或共模输入电压的变化而变化,并且能够消除由两个电流源(164,166)的失配引起的输入偏移。 NMOS晶体管(502)具有与用于连接电流镜(151-158)的PMOS晶体管(505)串联设置的源极 - 漏极路径,并且消除输入偏移。 晶体管(500)的源极通过PMOS晶体管(503)和电流源(508)与Vss和VDD轨道分离,使得电流镜(500,501,502,503,504,505)漂浮,使得晶体管(502)和(505)将各自具有 一个源极偏置电压源,与电源电压VDD和Vss上的电压变化无关,并且与任何输入共模电压偏移无关。 还可以包括电压钳位晶体管(600)和(602),以使电流镜晶体管(151-154)和(155-158)成为低电压器件,以增加总体操作速度和器件匹配。
    • 4. 发明申请
    • DIFFERENTIAL AMPLIFIER
    • 差分放大器
    • WO1998000911A1
    • 1998-01-08
    • PCT/GB1997001754
    • 1997-06-26
    • SYMBIOS LOGIC INC.GILL, David, Alan
    • SYMBIOS LOGIC INC.GILL, David, AlanGASPARIK, Frank
    • H03F03/45
    • H03F3/4521H03F3/3028H03F2203/45508H03F2203/45656H03F2203/45658
    • The invention provides for a receiver, such as a differential receiver (300), that includes a first input (302), a second input (304), and an output (306). The receiver (300) has a first signal path from the first input (302) to the output, the first signal path including a first differential amplifier (308) and a first active load (312) wherein the first differential amplifier (308) has an end connected to a first power supply voltage (VDD) and a second end connected to a second power supply voltage and the first active load (312). The first differential amplifier (308) also has a connection to the first input (302) and the second input (304), and the first active load (312) has a connection to the output (306). The receiver (300) also has a second signal path from the second input (304) to the output (306), the second signal path including a second differential amplifier (310) and second active load (314), wherein the second differential amplifier (310) has an end connected to a first power supply voltage and a second end connected to a second power supply voltage (VDD) and the second active load (314). The second differential amplifier (310) also has a connection to the first input (300) and the second input (304), and the second active load (314) has a connection to the output (306). The first signal path and the second signal path both have the same number of devices.
    • 本发明提供了一种包括第一输入(302),第二输入(304)和输出(306)的接收器,例如差分接收器(300)。 接收器(300)具有从第一输入(302)到输出的第一信号路径,第一信号路径包括第一差分放大器(308)和第一有效负载(312),其中第一差分放大器(308)具有 连接到第一电源电压(VDD)的端部和连接到第二电源电压的第二端和第一有效负载(312)。 第一差分放大器(308)还具有与第一输入(302)和第二输入(304)的连接,并且第一有效负载(312)具有到输出(306)的连接。 接收机(300)还具有从第二输入(304)到输出(306)的第二信号路径,第二信号路径包括第二差分放大器(310)和第二有源负载(314),其中第二差分放大器 (310)具有连接到第一电源电压的端部和连接到第二电源电压(VDD)和第二有源负载(314)的第二端。 第二差分放大器(310)还具有与第一输入(300)和第二输入(304)的连接,并且第二有效负载(314)具有到输出端(306)的连接。 第一信号路径和第二信号路径都具有相同数量的设备。
    • 6. 发明申请
    • トランスファーゲート回路ならびにそれを用いた電力合成回路,電力増幅回路,送信装置および通信装置
    • 传输栅极电路和功率组合电路,功率放大电路,传输设备和使用传输栅极电路的通信设备
    • WO2011013403A1
    • 2011-02-03
    • PCT/JP2010/055625
    • 2010-03-30
    • 京セラ株式会社長山 昭福岡 泰彦五十嵐 貞男磯山 伸治
    • 長山 昭福岡 泰彦五十嵐 貞男磯山 伸治
    • H03K17/693H03F3/68
    • H03F3/193H03F3/245H03F3/3028H03F2200/387H03F2200/451H03F2203/30078H03F2203/30114H03K17/6874H03K17/693
    •  【課題】 出力波形の乱れが低減されたトランスファーゲート回路およびそれを用いた電力合成回路ならびにそれを用いた送信装置および通信装置を提供する。 【解決手段】 出力端子3,4と、ドレインが出力端子3に接続されたトランジスタ5と、ドレインが出力端子4に接続されたトランジスタ6と、ドレインが出力端子3に、ソースがアース電位に接続されるトランジスタ7,8と、ドレインが出力端子4に、ソースがアース電位に接続されるトランジスタ9,10とを備え、トランジスタ5,6のソースに第1,第2入力信号が、トランジスタ5のゲートに第2入力信号と同相の信号が、トランジスタ6のゲートに第1入力信号と同相の信号が、トランジスタ7,9のゲートに第2入力信号と逆相の信号が、トランジスタ8,10のゲートに第1入力信号と逆相の信号が入力されるトランスファーゲート回路とする。
    • 提供了一种传输门电路,其输出波形减少,使用传输门的功率合并电路,以及使用该功率合并电路的传输设备和通信设备。 传输门电路设有:输出端子(3,4); 晶体管(5),其漏极连接到输出端子(3); 晶体管(6),其漏极连接到输出端子(4); 晶体管(7,8),其漏极连接到输出端子(3),其源极连接到地电位; 和其漏极连接到输出端子(4)的晶体管(9,10),其源极连接到地电位。 传输门电路还具有输入到晶体管(5,6)的源极的第一和第二输入信号,具有与输入到晶体管(5)的栅极的第二输入信号具有相同相位的信号, 具有与输入到晶体管(6)的栅极的第一输入信号具有相同相位的信号,具有与输入到晶体管(7,9)的栅极的第二输入信号相反的相位的信号,并且具有 具有与输入到晶体管(8,10)的栅极的第一输入信号相反的相位的信号。
    • 7. 发明申请
    • DIFFERENTIAL AMPLIFIER
    • 差分放大器
    • WO01041301A1
    • 2001-06-07
    • PCT/JP2000/008512
    • 2000-12-01
    • H03F3/30H03F3/45
    • H03F3/45179H03F3/3028H03F3/45192H03F2203/45028H03F2203/45292H03F2203/45651
    • 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.
    • 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电压差的输入电路(10) 反馈偏置电路(20),用于响应于由输入电路(10)提供的差分电压信号提供对应于差分电压信号的偏置电压,并且用于馈送输出电流以控制偏置电压; 输出电路(30),用于向与所述偏置电压相对应的输出电流提供负载; 以及用于检测输出电流并将其提供给反馈偏置电路(20)的电流检测器电路(40)。 如果差分电压信号为零,则差分放大器电路执行AB类放大器,其偏置电流值接近零。
    • 8. 发明申请
    • AMPLIFIER
    • 放大器
    • WO00077931A1
    • 2000-12-21
    • PCT/EP2000/003629
    • 2000-04-20
    • H03F1/26H03F3/195H03F3/30H03K5/02H03F3/345H03K19/00
    • H03F3/3028H03F1/26H03F2200/372
    • An amplifier circuit comprises a circuit input (14), and a circuit output (22). An inverter, comprising first and second MOS transistors (16, 18) is connected between first and second supply voltages (Vdd, Vss), and has an inverter input connected to the circuit input (14), and an inverter output (20), which provides an inverter output current corresponding to a circuit input voltage. A first resistive element comprises a third MOS transistor (24) and a fourth MOS transistor (26), the third and fourth transistors being of opposite conductivity types, and each having their gate and drain terminals connected to the inverter output (20) and the circuit output (22), and having their respective source terminals connected to respective ones of the first and second supply voltages (Vdd, Vss). A second resistive element comprises a fifth MOS transistor (30) and a sixth MOS transistor (32), the fifth and sixth transistors being of opposite conductivity types, and each having its drain-source path connected between the circuit output (22) and the circuit input (14), and having its gate connected to a respective voltage source (34, 36). The amplifier circuit is suitable for integration using CMOS techniques, and for use at radio frequencies, while providing good performance in terms of its noise figure. Alternative embodiments are disclosed having various combinations of the above components.
    • 放大器电路包括电路输入端(14)和电路输出端(22)。 包括第一和第二MOS晶体管(16,18)的反相器连接在第一和第二电源电压(Vdd,Vss)之间,并且具有连接到电路输入端(14)的反相器输入端和反相器输出端(20), 其提供对应于电路输入电压的逆变器输出电流。 第一电阻元件包括第三MOS晶体管(24)和第四MOS晶体管(26),第三和第四晶体管具有相反的导电类型,并且其栅极和漏极端子连接到逆变器输出端(20),并且 电路输出(22),并且其各自的源极端子连接到第一和第二电源电压(Vdd,Vss)中的相应的一个。 第二电阻元件包括第五MOS晶体管(30)和第六MOS晶体管(32),第五和第六晶体管具有相反的导电类型,并且其漏极源路径连接在电路输出端(22)和 电路输入(14),并且其栅极连接到相应的电压源(34,36)。 放大器电路适用于使用CMOS技术的集成,并且在无线电频率下使用,同时在其噪声系数方面提供良好的性能。 公开了具有上述组件的各种组合的替代实施例。
    • 10. 发明申请
    • TWO-STAGE CLASS AB OPERATIONAL AMPLIFIER
    • 两级AB操作放大器
    • WO2012116954A1
    • 2012-09-07
    • PCT/EP2012/053266
    • 2012-02-27
    • ST-ERICSSON SANICOLLINI, GermanoPINNA, Carlo
    • NICOLLINI, GermanoPINNA, Carlo
    • H03F3/30H03F3/45
    • H03F3/45264H03F3/3028H03F3/45H03F3/4565H03F3/45663H03F2200/297H03F2200/453H03F2200/456H03F2203/30015H03F2203/30021H03F2203/30081H03F2203/30114H03F2203/45311H03F2203/45626H03F2203/45648H03F2203/45674H03F2203/45696H03F2203/45702H03H11/1213
    • The invention relates to a two stage class AB operational amplifier (200) for driving a load (L), comprising at least an input stage (201) comprising differential input terminals (IN+, IN-) and an output terminal (N) to provide a driving signal (VN). In addition, the operational amplifier comprises an output stage (202) comprising a first (A) and second (B) input terminals operatively associated to the input stage (201) to be driven on the basis of said driving signal (VN) and a driving circuit (203) operatively interposed between said input stage (201) and the output stage (202). The operational amplifier is characterised in that the driving circuit (203) comprises a first portion (204) comprising at least one resistor (R1) operatively connected between a first reference potential (Vcc) via a first circuitry block (MT, M11) comprising a PMOS transistor (MT) and a second reference potential (GND) via a second circuitry block (M12, MS) comprising a NMOS transistor (MS). The voltage drop (VR1) on said at least a first resistor (R1) is fixed to a value depending on said first (Vcc) and second (GND) reference potentials and the gate-source voltages of said PMOS (MT) and NMOS (MS) transistors, respectively. The driving circuit further comprises a second portion (205) comprising a first resistor (R2) and a second resistor (R2') having first terminals connected one another in a common terminal (P) which is connected to the output terminal (N) of the input stage. Said first resistor (R2) has a second terminal connected the first input terminal (A) of the output stage and said second resistor (R2') has a second terminal connected to the second input terminal (B) of the output stage. Said second terminals (A, B) of the first (R2) and second resistors (R2') are connected to the first reference potential (Vcc) via a third circuitry block (MW, M9) and to the second reference potential (GND) via a fourth circuitry block (M10, MX), respectively. Said third (MW, M9) and fourth (M10, MX) circuitry blocks are arranged to be operatively connected to said first (MT, M11) and second (M12, MS) circuitry blocks, respectively, so that the voltage drop (VR2) between the second terminals (A, B) is substantially equal to the value of the voltage drop (VR1) across said at least one resistor (R1).
    • 本发明涉及用于驱动负载(L)的两级AB运算放大器(200),其包括至少包括差分输入端(IN +,IN-)和输出端(N)的输入级(201),以提供 驱动信号(VN)。 此外,运算放大器包括输出级(202),包括与基于所述驱动信号(VN)驱动的输入级(201)可操作地相关联的第一(A)和第二(B)输入端,以及 驱动电路(203)可操作地插入在所述输入级(201)和输出级(202)之间。 运算放大器的特征在于,驱动电路(203)包括第一部分(204),第一部分(204)包括经由第一电路块(MT,M11)可操作地连接在第一参考电位(Vcc)之间的至少一个电阻器(R1) PMOS晶体管(MT)和第二参考电位(GND),经由包括NMOS晶体管(MS)的第二电路块(M12,MS)。 所述至少第一电阻器(R1)上的电压降(VR1)固定为取决于所述第一(Vcc)和第二(GND)基准电位的值和所述PMOS(MT)和NMOS( MS)晶体管。 所述驱动电路还包括第二部分(205),包括第一电阻器(R2)和第二电阻器(R2'),所述第一电阻器(R2')具有在公共端子(P)中彼此连接的第一端子,所述公共端子连接到所述输出端子 输入阶段。 所述第一电阻器(R2)具有与输出级的第一输入端子(A)连接的第二端子,而所述第二电阻器(R2')具有连接到输出级的第二输入端子(B)的第二端子。 所述第一(R2)和第二电阻(R2')的所述第二端子(A,B)经由第三电路块(MW,M9)和第二参考电位(GND)连接到第一参考电位(Vcc) 分别经由第四电路块(M10,MX)。 所述第三(MW,M9)和第四(M10,MX)电路块分别布置成可操作地连接到所述第一(MT,M11)和第二(M12,MS)电路块,使得电压降(VR2) 在第二端子(A,B)之间的电压基本上等于所述至少一个电阻器(R1)上的电压降(VR1)的值。