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公开(公告)号：US20180323761A1
公开(公告)日：2018-11-08
申请号：US16033993
申请日：2018-07-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune
CPC classification number: H03F3/45475 , H03F1/0211 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/245 , H03F3/68 , H03F2200/312 , H03F2200/451 , H03F2200/516 , H03F2200/555
Abstract: An output circuit includes a first transistor, a second transistor, an operational amplifier that outputs a control voltage, and a switch circuit that controls voltage output in accordance with a control signal. When the control signal is in a first state, the switch circuit supplies the control voltage to the gate of the first transistor to turn on the first transistor and electrically connects the drain of first transistor to the operational amplifier so that a first output voltage is output from the drain of the first transistor. When the control signal is in a second state, the switch circuit supplies the control voltage to the gate of the second transistor to turn on the second transistor and electrically connects the drain of the second transistor to the operational amplifier so that a second output voltage is output from the drain of the second transistor.
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公开(公告)号：US10050592B2
公开(公告)日：2018-08-14
申请号：US15467598
申请日：2017-03-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune
Abstract: An output circuit includes a first transistor, a second transistor, an operational amplifier that outputs a control voltage, and a switch circuit that controls voltage output in accordance with a control signal. When the control signal is in a first state, the switch circuit supplies the control voltage to the gate of the first transistor to turn on the first transistor and electrically connects the drain of first transistor to the operational amplifier so that a first output voltage is output from the drain of the first transistor. When the control signal is in a second state, the switch circuit supplies the control voltage to the gate of the second transistor to turn on the second transistor and electrically connects the drain of the second transistor to the operational amplifier so that a second output voltage is output from the drain of the second transistor.
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公开(公告)号：US10153737B2
公开(公告)日：2018-12-11
申请号：US15918414
申请日：2018-03-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Yusuke Shimamune
Abstract: A power amplifier module includes an amplifier that amplifies an input signal and outputs an amplified signal, an emitter follower transistor that supplies a bias signal to the amplifier to control a bias point of the amplifier, and a current source that supplies a control current which changes in accordance with a change in control voltage to a collector of the emitter follower transistor. The current source limits the control current to not greater than an upper limit.
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公开(公告)号：US10044330B2
公开(公告)日：2018-08-07
申请号：US15710426
申请日：2017-09-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Seiko Ono , Yusuke Shimamune , Fuminori Morisawa , Shizuki Nakajima , Yuri Honda , Kazuhiro Koshio , Masato Sato
IPC: H03F3/21
Abstract: A power amplifier module includes a first current source that outputs a first current corresponding to a level control voltage for controlling a signal level of an amplified signal, a second current source that outputs a second current corresponding to the level control voltage, a first transistor in which an input signal and a first bias current are supplied to a base and an emitter is grounded, a second transistor in which an emitter is connected to a collector of the first transistor, the second current is supplied to a base, and a first amplified signal obtained by amplifying the input signal is output from a collector, and a third transistor in which the first current is supplied to a collector, a bias control current or voltage is supplied to a base, and the first bias current is supplied from an emitter to the base of the first transistor.
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5.发明授权Semiconductor integrated circuit apparatus and radio-frequency power amplifier module 有权半导体集成电路设备和射频功率放大器模块公开(公告)号：US08810285B2
公开(公告)日：2014-08-19
申请号：US14026076
申请日：2013-09-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune , Yasunobu Yoshizaki , Norio Hayashi , Takayuki Tsutsui
IPC: H03F3/45 , H04B1/04 , H03F3/16 , H03G3/30 , H03F3/195 , H03F3/68 , H04W52/52 , H03F3/24 , H03F3/72 , H03F3/21
CPC classification number: H04W52/52 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2203/7209 , H03G3/3042
Abstract: In a semiconductor integrated circuit apparatus and a radio-frequency power amplifier module, a log detection portion including multiple-stage amplifier circuits, multiple level detection circuits, adder circuits, and a linear detection portion including a level detection circuit are provided. Output current from the log detection portion and output current from the linear detection portion are multiplied by different coefficients and the results of the multiplication are added to each other to realize the multiple detection methods. For example, current resulting from multiplication of the output current from the log detection portion by ×6/5 is added to the output current from the linear detection portion to realize a log detection method and, current resulting from multiplication of the output current from the log detection portion by ×⅕ is added to current resulting from multiplication of the output current from the linear detection portion by ×3 to realize a log-linear detection method.
Abstract translation: 在半导体集成电路装置和射频功率放大器模块中，提供包括多级放大器电路，多电平检测电路，加法器电路和包括电平检测电路的线性检测部分的对数检测部分。 来自对数检测部分的输出电流和来自线性检测部分的输出电流乘以不同的系数，并且相乘的结果相加以实现多种检测方法。 例如，将从日志检测部分的输出电流乘以×6/5产生的电流被加到来自线性检测部分的输出电流中，以实现对数检测方法，并且由与来自 将来自线性检测部分的输出电流乘以×3所产生的电流加上×的对数检测部分，以实现对数线性检测方法。
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Patent Agency Ranking
公开(公告)号：US09882533B2
公开(公告)日：2018-01-30
申请号：US15274539
申请日：2016-09-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune , Satoshi Tanaka , Takayuki Tsutsui , Hayato Nakamura , Kazuhito Nakai , Fuminori Morisawa
CPC classification number: H03F1/0222 , G05F3/262 , H03F1/301 , H03F1/302 , H03F3/04 , H03F3/191 , H03F3/193 , H03F3/21 , H03F2200/18 , H03F2200/451
Abstract: Provided is a current output circuit that includes: a first FET that has a power supply voltage supplied to a source thereof, that has a first voltage supplied to a gate thereof and that outputs a first current from a drain thereof; a second FET that has the power supply voltage supplied to a source thereof, that has the first voltage supplied to a gate thereof and that outputs an output current from a drain thereof; a first control circuit that controls the first voltage such that the first current comes to be at a target level; and a second control circuit that performs control such that a drain voltage of the first FET and a drain voltage of the second FET are made equal to each other.
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公开(公告)号：US20170331441A1
公开(公告)日：2017-11-16
申请号：US15467598
申请日：2017-03-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune
CPC classification number: H03F3/45475 , H03F1/0211 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/245 , H03F3/68 , H03F2200/312 , H03F2200/451 , H03F2200/516 , H03F2200/555
Abstract: An output circuit includes a first transistor, a second transistor, an operational amplifier that outputs a control voltage, and a switch circuit that controls voltage output in accordance with a control signal. When the control signal is in a first state, the switch circuit supplies the control voltage to the gate of the first transistor to turn on the first transistor and electrically connects the drain of first transistor to the operational amplifier so that a first output voltage is output from the drain of the first transistor. When the control signal is in a second state, the switch circuit supplies the control voltage to the gate of the second transistor to turn on the second transistor and electrically connects the drain of the second transistor to the operational amplifier so that a second output voltage is output from the drain of the second transistor.
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公开(公告)号：US09552008B1
公开(公告)日：2017-01-24
申请号：US15244310
申请日：2016-08-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune
CPC classification number: G05F3/08
Abstract: A voltage regulator circuit includes: an output transistor that controls an output voltage by making an output current flow between first and second electrodes in accordance with a first differential voltage, which is a difference between first and second voltages of the first and third electrodes; an operational amplifier that controls the second voltage such that the output voltage comes to be at a target level; an initiation circuit that maintains the second voltage at the third voltage such that the output transistor is off before initiation of the voltage regulator circuit and that allows the second voltage to be controlled by the operational amplifier after initiation of the voltage regulator circuit; and a current output circuit that outputs an adjustment current from the third electrode or to the third electrode such that the first differential voltage becomes larger when the output voltage is less than a prescribed level.
Abstract translation: 电压调节器电路包括：输出晶体管，其根据作为第一和第三电极的第一和第二电压之间的差的第一差分电压使第一和第二电极之间的输出电流流过来控制输出电压; 运算放大器，其控制第二电压，使得输出电压达到目标水平; 启动电路，其将所述第二电压维持在所述第三电压，使得所述输出晶体管在所述电压调节器电路开始之前截止，并且允许在所述稳压器电路启动之后由所述运算放大器控制所述第二电压; 以及电流输出电路，其输出来自所述第三电极或所述第三电极的调整电流，使得当所述输出电压小于规定水平时，所述第一差分电压变大。
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公开(公告)号：US20170019082A1
公开(公告)日：2017-01-19
申请号：US15201999
申请日：2016-07-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Yusuke Shimamune , Takashi Soga , Fuminori Morisawa , Seiko Ono , Tetsuaki Adachi
CPC classification number: H03G3/3042 , H03F1/565 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03G3/3047 , H03G2201/40
Abstract: Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.
Abstract translation: 提供了一种功率放大模块，其包括：放大晶体管，其具有提供给其集电极的恒定电源电压，提供给其基极的偏置电流，并且放大输入到其基极的输入信号，并输出来自 其收集器; 输出对应于用于控制放大信号的信号电平的电平控制电压的第一电流的第一电流源; 以及具有提供给其集电极的第一电流的偏置晶体管，连接到其基极并从其发射极输出偏置电流的偏置控制电压。
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公开(公告)号：US10979000B2
公开(公告)日：2021-04-13
申请号：US16850349
申请日：2020-04-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke Shimamune
Abstract: A differential amplifier circuit includes a differential pair including a first field-effect transistor (FET) and a second FET, a first current source that generates a current which flows in the first FET and the second FET, and an output circuit that outputs an output voltage corresponding to a difference between a gate voltage of the first FET and a gate voltage of the second FET in accordance with an operation of the differential pair. A back gate of the first FET is connected to a gate of the first FET, and a back gate of the second FET is connected to a gate of the second FET. A first feedback voltage corresponding to the output voltage is input to the gate of the second FET.
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