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公开(公告)号：EP3017540A4
公开(公告)日：2017-01-11
申请号：EP13888804
申请日：2013-07-04
发明人： LI LEI
CPC分类号： H03F3/3001 , H03F3/30 , H03F3/3022 , H03F2003/3003 , H03F2200/03 , H03F2200/451 , H03F2203/30078 , H03F2203/30081 , H03F2203/30111 , H03F2203/30114 , H03K17/163
摘要： There are disclosed various methods and apparatuses. In some embodiments of the method an input signal is provided to an input of a first transistor of a push-pull circuit via a first slew-rate adjuster; and the input signal is also provided to an input of a second transistor of the push-pull circuit via a second slew-rate adjuster. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster to switch the first transistor on after the second transistor switches off when the amplitude of the input signal increases. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster the input signal to switch the second transistor on after the first transistor switches off when the amplitude of the input signal decreases. In some embodiments the apparatus comprises a push-pull circuit comprising a first transistor and a second transistor; an input to receive an input signal; a first slew-rate adjuster adapted to provide the input signal to the input of the first transistor; and a second slew-rate adjuster adapted to provide the input signal to the input of the second transistor. A time constant of the first slew-rate adjuster is dependent on the direction of change of the input signal, and a time constant of the second slew-rate adjuster is dependent on the direction of change of the input signal.
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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
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。
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公开(公告)号：EP1330871B1
公开(公告)日：2004-03-24
申请号：EP01993058.5
申请日：2001-11-01
发明人： LEWYN, Lanny
IPC分类号： H03F1/02
CPC分类号： H03F3/3076 , H03F1/0222 , H03F3/45094 , H03F2203/30078 , H03F2203/30111 , H03F2203/45631 , H04L27/2614 , H04L27/2626
摘要： A monolithic integrated circuit amplifier has a gain stage (202) and a buffer stage (210). The buffer stage includes an output stage and two separate voltage supplies (+Vlo, +Vhi), the second of which has a greater magnitude than the first. Switching circuitry is included that is connected to the output stage via a regulator bus. When an output demand voltage is less than a switch-over threshold, current to the output stage is provided substantially from the first voltage supply (+Vlo); when the output demand voltage is greater than the awitch-over threshold, current to the output stage is provided substantially from the second voltage supply (+Vhi). Collector voltage at the output stage is dynamically controlled to be greater than the emitter voltage by a difference voltage that increases proportionally as output voltage increases above the switch-over threshold. This difference voltage is commonly reffered to as 'headroom'. The dynamic headroom control circuitry preferably includes circuitry for predicably setting and controlling the headroom voltage at switch-over and smoothly increasing the headroom voltage up to maximum output voltage.
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公开(公告)号：EP3017540B1
公开(公告)日：2018-08-22
申请号：EP13888804.5
申请日：2013-07-04
发明人： LI, Lei
CPC分类号： H03F3/3001 , H03F3/30 , H03F3/3022 , H03F2003/3003 , H03F2200/03 , H03F2200/451 , H03F2203/30078 , H03F2203/30081 , H03F2203/30111 , H03F2203/30114 , H03K17/163
摘要： There are disclosed various methods and apparatuses. In some embodiments of the method an input signal is provided to an input of a first transistor of a push-pull circuit via a first slew-rate adjuster; and the input signal is also provided to an input of a second transistor of the push-pull circuit via a second slew-rate adjuster. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster to switch the first transistor on after the second transistor switches off when the amplitude of the input signal increases. The input signal is effected by the first slew-rate adjuster and the second slew-rate adjuster the input signal to switch the second transistor on after the first transistor switches off when the amplitude of the input signal decreases. In some embodiments the apparatus comprises a push-pull circuit comprising a first transistor and a second transistor; an input to receive an input signal; a first slew-rate adjuster adapted to provide the input signal to the input of the first transistor; and a second slew-rate adjuster adapted to provide the input signal to the input of the second transistor. A time constant of the first slew-rate adjuster is dependent on the direction of change of the input signal, and a time constant of the second slew-rate adjuster is dependent on the direction of change of the input signal.
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公开(公告)号：EP2424107A2
公开(公告)日：2012-02-29
申请号：EP11173807.6
申请日：2011-07-13
申请人： Onkyo Corporation
IPC分类号： H03F3/30
CPC分类号： H03F3/3076 , H03F1/307 , H03F1/3217 , H03F3/3066 , H03F3/3432 , H03F2200/447 , H03F2200/91 , H03F2203/30078 , H03F2203/30111
摘要： A current-voltage conversion circuit comprises: a first transistor provided in an input stage; a second transistor provided in the input stage and has polarity different from that of the first transistor; and a bias circuit. A first terminal of the first transistor and a first terminal of the second transistor are connected to an input terminal into which an input current is input, a second terminal of the first transistor is connected to a first predetermined potential, a second terminal of the second transistor is connected to a second predetermined potential, the bias circuit is connected between the control terminal of the first transistor and the control terminal of the second transistor.
摘要翻译： 电流 - 电压转换电路包括：设置在输入级中的第一晶体管; 设置在所述输入级中并具有与所述第一晶体管的极性不同的极性的第二晶体管; 和偏置电路。 第一晶体管的第一端子和第二晶体管的第一端子连接到输入电流输入的输入端子，第一晶体管的第二端子连接到第一预定电位，第二端子的第二端子连接到第二晶体管的第二端子， 晶体管连接到第二预定电位，偏置电路连接在第一晶体管的控制端和第二晶体管的控制端之间。
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公开(公告)号：EP0409476B1
公开(公告)日：1995-10-18
申请号：EP90307590.1
申请日：1990-07-11
申请人： AT&T Corp.
发明人： Khoury, John M.
IPC分类号： H03F3/30
CPC分类号： H03F3/3001 , H03F2203/30057 , H03F2203/30078 , H03F2203/30096 , H03F2203/30111 , H03F2203/30129
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公开(公告)号：EP2424107A3
公开(公告)日：2012-06-27
申请号：EP11173807.6
申请日：2011-07-13
申请人： Onkyo Corporation
CPC分类号： H03F3/3076 , H03F1/307 , H03F1/3217 , H03F3/3066 , H03F3/3432 , H03F2200/447 , H03F2200/91 , H03F2203/30078 , H03F2203/30111
摘要： A current-voltage conversion circuit comprises: a first transistor provided in an input stage; a second transistor provided in the input stage and has polarity different from that of the first transistor; and a bias circuit. A first terminal of the first transistor and a first terminal of the second transistor are connected to an input terminal into which an input current is input, a second terminal of the first transistor is connected to a first predetermined potential, a second terminal of the second transistor is connected to a second predetermined potential, the bias circuit is connected between the control terminal of the first transistor and the control terminal of the second transistor.
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8.发明公开TRANSFER GATE CIRCUIT, AND POWER COMBINING CIRCUIT, POWER AMPLIFYING CIRCUIT, TRANSMISSION DEVICE, AND COMMUNICATION DEVICE USING THE TRANSFER GATE CIRCUIT 审中-公开过渡门电路和性能组合切换，电源升压电路，发送装置和通信设备与过渡门电路
公开(公告)号：EP2461483A1
公开(公告)日：2012-06-06
申请号：EP10804152.6
申请日：2010-03-30
申请人： Kyocera Corporation
IPC分类号： H03K17/693 , H03F3/68
CPC分类号： H03F3/193 , H03F3/245 , H03F3/3028 , H03F2200/387 , H03F2200/451 , H03F2203/30078 , H03F2203/30114 , H03K17/6874 , H03K17/693
摘要： Provided are a transfer gate circuit that has reduced disturbance in an output waveform thereof, a power combining circuit using the transfer gate circuit, and a transmission device and a communication device that use the power combining circuit. The transfer gate circuit includes: output terminals (3, 4) ; a transistor (5) including a drain connected to the output terminal (3); a transistor (6) including a drain connected to the output terminal (4); transistors (7, 8) each including a drain connected to the output terminal (3) and each including a source connected to a ground potential; and transistors (9, 10) each including a drain connected to the output terminal (4) and each including a source connected to the ground potential. In the transfer gate circuit, the transistors (5, 6) include sources to which first and second input signals are input, respectively, the transistor (5) includes a gate to which a signal in phase with the second input signal is input, the transistor (6) includes a gate to which a signal in phase with the first input signal is input, the transistors (7, 9) each include a gate to which a signal in antiphase to the second input signal is input, and the transistors (8, 10) each include a gate to which a signal in antiphase to the first input signal is input.
摘要翻译： 提供的是一个传输门电路也已在输出波形的扰动减少它们的功率使用传输门电路的组合电路，以及发送装置和通信装置没有使用功率组合电路。 传输门电路包括：输出端子（3,4）; 包括连接到所述输出端子（3）的漏极的晶体管（5）; 包括连接到所述输出端子（4）的漏极的晶体管（6）; 晶体管（7,8）的每个包括连接到所述输出端子（3）的漏极和每个包括连接到接地电位的源; 和晶体管（9，10）的每个包括连接到所述输出端子（4）的漏极，并且每个包括连接到接地电位的源极。 在传输门电路中，晶体管（5,6）包括源到其中第一和第二输入信号被输入，分别，晶体管（5）包括一个栅极连接到哪个相位与所述第二输入信号的信号被输入时， 晶体管（6）包括一个栅极连接到哪个相位与所述第一输入信号的信号被输入时，晶体管（7,9）的每一个包括栅极，以其中在反相位的第二输入信号的信号被输入，并且晶体管（ 8，10）的每一个包括栅极，以其中在反相位的第一输入信号的信号输入。
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公开(公告)号：EP1330871A2
公开(公告)日：2003-07-30
申请号：EP01993058.5
申请日：2001-11-01
发明人： LEWYN, Lanny
IPC分类号： H03F1/02
CPC分类号： H03F3/3076 , H03F1/0222 , H03F3/45094 , H03F2203/30078 , H03F2203/30111 , H03F2203/45631 , H04L27/2614 , H04L27/2626
摘要： A monolithic integrated circuit amplifier has a gain stage (202) and a buffer stage (210). The buffer stage includes an output stage and two separate voltage supplies (+Vlo, +Vhi), the second of which has a greater magnitude than the first. Switching circuitry is included that is connected to the output stage via a regulator bus. When an output demand voltage is less than a switch-over threshold, current to the output stage is provided substantially from the first voltage supply (+Vlo); when the output demand voltage is greater than the awitch-over threshold, current to the output stage is provided substantially from the second voltage supply (+Vhi). Collector voltage at the output stage is dynamically controlled to be greater than the emitter voltage by a difference voltage that increases proportionally as output voltage increases above the switch-over threshold. This difference voltage is commonly reffered to as 'headroom'. The dynamic headroom control circuitry preferably includes circuitry for predicably setting and controlling the headroom voltage at switch-over and smoothly increasing the headroom voltage up to maximum output voltage.
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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
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.
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