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1. 发明公开

EP2630727A4 FOLDED CASCODE OPERATIONAL AMPLIFIER 审中-公开
标题翻译：折叠式CASCODE运算放大器
公开(公告)号：EP2630727A4
公开(公告)日：2013-10-23
申请号：EP11843596
申请日：2011-11-18
申请人： CSMC TECHNOLOGIES FAB1 CO LTD , CSMC TECHNOLOGIES FAB2 CO LTD
发明人： CHENG LIANG
IPC分类号： H03F3/45 , H03F3/30
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

2. 发明公开

EP2329594A4 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：具有低失真CASCADE放大电路
公开(公告)号：EP2329594A4
公开(公告)日：2014-02-19
申请号：EP09812522
申请日：2009-09-08
申请人： THOMAS ROGOFF AUDIO PTY LTD
发明人： THOMAS CLIVE
IPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/20 , H03F3/26 , H03F3/30
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03

3. 发明公开

EP2329594A1 LOW DISTORTION CASCODE AMPLIFIER CIRCUIT 审中-公开
标题翻译：具有低失真CASCADE放大电路
公开(公告)号：EP2329594A1
公开(公告)日：2011-06-08
申请号：EP09812522.2
申请日：2009-09-08
申请人： Thomas Rogoff Audio (Pty) Ltd
发明人： THOMAS, Clive
IPC分类号： H03F1/22 , H03F3/20 , H03F3/26
CPC分类号： H03F1/22 , H03F1/32 , H03F3/183 , H03F3/3016 , H03F3/3022 , H03F2200/03
摘要： An audio amplifier circuit has a first cascode stage configured as a voltage gain stage and having an input for an audio signal, and an output. The circuit has a second cascode stage configured as a unity gain or near unity gain stage and having an input to receive an output from the first cascode stage, and a low impedance output to drive an output stage of an audio power amplifier. The first cascode stage has a first, input transistor having an input biased to a predetermined bias voltage, and a second, output transistor arranged to drive the second cascode stage. The first, input transistor of the first cascode stage may have a common-emitter configuration, and the second, output transistor may have a common-base configuration. The invention extends to an audio amplifier which includes a circuit of the invention.

4. 发明公开

EP2963814A1 Class AB amplifier with bias control 有权
标题翻译： Klasse-AB-Verstärkermit Vorspannungssteuerung
公开(公告)号：EP2963814A1
公开(公告)日：2016-01-06
申请号：EP14175513.2
申请日：2014-07-03
申请人： BANG & OLUFSEN A/S
发明人： Selmer Jensen, Jorgen , Nörmölle Rasmussen, Jens
IPC分类号： H03F3/30 , H03F1/30
CPC分类号： H03F1/302 , H03F1/307 , H03F1/308 , H03F1/32 , H03F3/183 , H03F3/21 , H03F3/3016 , H03F3/3066 , H03F3/45174 , H03F2200/321 , H03F2200/462 , H03F2200/78 , H03F2203/30024 , H03F2203/30078 , H03F2203/30111
摘要： An amplifier arrangement comprising first and second power amplifiers (T1, T2) having drains connected to positive and negative drive voltages, respectively, and gates connected to an input signal. The arrangement further comprises first and second current sensors (1, 2) for detecting first and second drain currents from the power amplifiers, processing circuitry (3) adapted to identify the smallest drain current, and a feedback control loop (5) and means for driving a bias current dependent on a feedback signal through a resistor connected between the input signal and the gate of an inactive one of the first and second power amplifiers.
The control loop will keep the idle current constant in the transistor with the lowest current (the inactive transistor). Thereby, the current running in the transistor which does not deliver current to the load will be fixed at a desired value.
摘要翻译：放大器装置包括分别连接到正和负驱动电压的漏极的第一和第二功率放大器（T1，T2）和连接到输入信号的栅极。该装置还包括用于检测来自功率放大器的第一和第二漏极电流的第一和第二电流传感器（1,2），适于识别最小漏极电流的处理电路（3）和反馈控制回路（5）以及用于通过连接在输入信号和第一和第二功率放大器中不活动的一个的栅极之间的电阻来驱动取决于反馈信号的偏置电流。控制回路将使具有最低电流（无效晶体管）的晶体管中的空闲电流保持恒定。因此，不向负载输送电流的晶体管中的电流将被固定为期望值。

5. 发明公开

EP1716637A1 LOAD-INVARIANT AMPLIFIER 审中-公开
标题翻译： LOAD-INVARIANT放大器
公开(公告)号：EP1716637A1
公开(公告)日：2006-11-02
申请号：EP05711058.7
申请日：2005-02-15
申请人： Sandquist, Peter
发明人： Sandquist, Peter
IPC分类号： H03F1/32 , H03F3/30
CPC分类号： H03F3/3008 , H03F1/3217 , H03F3/3016
摘要： A push-pull amplifier having low output impedance and low crossover distortion is provided. A least one of a current through a sourcing current path of an output stage and a current through a sinking current path of the output stage is determinative of a quiescent current control signal produced for controlling a quiescent current of the amplifier. The quiescent current is controlled by symmetrically controlling a bias voltage applied to a sourcing active output device and a bias voltage applied to a sinking active output device in response to the quiescent current control signal. An output stage sourcing control signal for controlling the sourcing active output device is referenced directly to a shared terminal of the sourcing active output device, and an output stage sinking control signal for controlling the sinking active output device is referenced directly to a shared terminal of the sinking active output device.
摘要翻译：提供具有低输出阻抗和低交叉失真的推挽放大器。通过输出级的源出电流路径的电流和通过输出级的吸收电流路径的电流中的至少一个是为控制放大器的静态电流而产生的静态电流控制信号的决定因素。响应于静态电流控制信号，通过对称地控制施加到源极有源输出装置的偏置电压和施加到吸收有源输出装置的偏置电压来控制静态电流。用于控制源极输出设备的输出级源极控制信号直接参考源极输出设备的共享端子，并且用于控制源极输出设备的输出级吸收控制信号直接参考源极输出设备的共享端子吸收有源输出设备。

6. 发明公开

EP3384600A1 CIRCUIT DE COMMUTATION, ÉTAGE ET APPAREIL D'AMPLIFICATION ET/OU DE DIVISION ASSOCIÉS 审中-公开
公开(公告)号：EP3384600A1
公开(公告)日：2018-10-10
申请号：EP16808959.7
申请日：2016-11-30
申请人： Thales
发明人： GIRARD, Dimitri , FASSE, Dominique , KASSAB, Quentin , CHAHBAZIAN, Max , LACHATER, Laurent
IPC分类号： H03F3/72 , H01P5/12 , H03K17/567
CPC分类号： H03K17/567 , H03F1/0277 , H03F3/211 , H03F3/3016 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/405 , H03F2200/534 , H03F2200/541 , H03F2203/30078 , H03F2203/30111 , H03F2203/7221 , H03F2203/7236
摘要： The invention relates to a switching circuit (52) for a cavity radio-frequency combiner, said switching circuit (52) being intended to connect an amplifier to the cavity combiner and said circuit (52) being adapted for average-power radio waves.

7. 发明授权

EP2472723B1 Amplifier with non-linear current mirror 有权转让
标题翻译：放大器具有非线性电流镜
公开(公告)号：EP2472723B1
公开(公告)日：2015-12-16
申请号：EP11150119.3
申请日：2011-01-04
申请人： ams AG
发明人： Fiocchi, Carlo
IPC分类号： H03F3/45 , H03F1/22 , H03F3/30 , H03F1/02 , H03G1/00 , G05F3/26
CPC分类号： H03F3/45183 , G05F3/262 , H03F1/0266 , H03F3/3016 , H03F3/45179 , H03F2200/24 , H03F2200/411 , H03F2200/453 , H03F2200/456 , H03F2203/30006 , H03F2203/45248 , H03F2203/45366 , H03F2203/45466 , H03F2203/45511 , H03F2203/45626 , H03F2203/45646 , H03F2203/45648 , H03F2203/45686 , H03F2203/45696 , H03F2203/45702 , H03G1/0029 , H03G1/0035

8. 发明公开

EP2630727A1 FOLDED CASCODE OPERATIONAL AMPLIFIER 审中-公开
标题翻译：折叠式CASCODE运算放大器
公开(公告)号：EP2630727A1
公开(公告)日：2013-08-28
申请号：EP11843596.5
申请日：2011-11-18
申请人： CSMC Technologies Fab1 Co., Ltd. , CSMC Technologies Fab2 Co., Ltd.
发明人： CHENG, Liang
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(M1), a second current source(M2), and a first voltage terminal(VDD) connected to the first current source(M1) and the second current source (M2). The folded cascode operational amplifier also includes a first input-transistor(M4) connected to the first current source(M1) in series, and a second input-transistor(M5) connected to the second current source(M2) in series. Further, the folded cascode operational amplifier includes a tail current source(M3) connected to a connection point between the first input-transistor(M4) and the second input-transistor(M5), a load current source(M7), and a second voltage terminal(VSS) connected to the tail current source(M3) and the load current source(M7). The folded cascode operational amplifier also includes an output-transistor (M6) connected to the load current source(M7), and an output-terminal(202) arranged between the second current source(M2) and the second input-transistor(M5) and connected to the output-transistor(M6). The second current source(M2) is a mirroring current source of the first current source(M1), and a ratio of a current passing through the second current source(M2) to a current passing through the first current source(M1) is greater than one.
摘要翻译：公开了一种折叠共源共栅运算放大器。折叠共源共栅运算放大器包括连接到第一电流源（M1）和第二电流源（M2）的第一电流源（M1），第二电流源（M2）和第一电压端（VDD）。折叠共源共栅运算放大器还包括串联连接到第一电流源（M1）的第一输入晶体管（M4）和串联连接到第二电流源（M2）的第二输入晶体管（M5）。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（M4）和第二输入晶体管（M5）之间的连接点的尾电流源（M3），负载电流源（M7）和第二输入晶体管连接到尾电流源（M3）和负载电流源（M7）的电压端子（VSS）。折叠共源共栅运算放大器还包括连接到负载电流源（M7）的输出晶体管（M6）和布置在第二电流源（M2）和第二输入晶体管（M5）之间的输出端（202）并连接到输出晶体管（M6）。第二电流源（M2）是第一电流源（M1）的镜像电流源，并且通过第二电流源（M2）的电流与通过第一电流源（M1）的电流的比率更大不止一个。

9. 发明授权

EP2963814B1 Class AB amplifier with bias control 有权
公开(公告)号：EP2963814B1
公开(公告)日：2018-08-08
申请号：EP14175513.2
申请日：2014-07-03
申请人： BANG & OLUFSEN A/S
发明人： Selmer Jensen, Jorgen , Nörmölle Rasmussen, Jens
IPC分类号： H03F3/30 , H03F1/30
CPC分类号： H03F1/302 , H03F1/307 , H03F1/308 , H03F1/32 , H03F3/183 , H03F3/21 , H03F3/3016 , H03F3/3066 , H03F3/45174 , H03F2200/321 , H03F2200/462 , H03F2200/78 , H03F2203/30024 , H03F2203/30078 , H03F2203/30111
摘要： An amplifier arrangement comprising first and second power amplifiers (T1, T2) having drains connected to positive and negative drive voltages, respectively, and gates connected to an input signal. The arrangement further comprises first and second current sensors (1, 2) for detecting first and second drain currents from the power amplifiers, processing circuitry (3) adapted to identify the smallest drain current, and a feedback control loop (5) and means for driving a bias current dependent on a feedback signal through a resistor connected between the input signal and the gate of an inactive one of the first and second power amplifiers. The control loop will keep the idle current constant in the transistor with the lowest current (the inactive transistor). Thereby, the current running in the transistor which does not deliver current to the load will be fixed at a desired value.

10. 发明公开

EP3262753A1 ELECTROSTATIC DISCHARGE PROTECTION FOR CMOS AMPLIFIER 审中-公开
标题翻译： CMOS放大器的静电放电保护
公开(公告)号：EP3262753A1
公开(公告)日：2018-01-03
申请号：EP16704750.5
申请日：2016-01-27
申请人： Qualcomm Incorporated
发明人： YOUSSEF, Ahmed Abdel Monem , GUDEM, Prasad Srinivasa Siva , WORLEY, Eugene Robert , PAN, Dongling , CHANG, Li-Chung
IPC分类号： H03F1/52 , H03F3/193
CPC分类号： H03F1/523 , H01L27/0255 , H03F1/52 , H03F3/193 , H03F3/211 , H03F3/3016 , H03F3/68 , H03F2200/294 , H03F2200/441 , H03F2200/444 , H03F2200/451 , H03F2200/489 , H03F2203/21106
摘要： A CMOS amplifier including electrostatic discharge (ESD) protection circuits is disclosed. In one embodiment, the CMOS amplifier may include a PMOS transistor, a NMOS transistor, primary protection diodes, and one or more auxiliary protection diodes to limit a voltage difference between terminals of the CMOS amplifier. In some embodiments, the auxiliary protection diodes may limit the voltage difference between an input terminal of the CMOS amplifier and a supply voltage, the input terminal of the CMOS amplifier and ground, and the input terminal and the output terminal of the CMOS amplifier.

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