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公开(公告)号：US20190052230A1
公开(公告)日：2019-02-14
申请号：US16057287
申请日：2018-08-07
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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公开(公告)号：US20190181816A1
公开(公告)日：2019-06-13
申请号：US16280180
申请日：2019-02-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota ISHIHARA , Seiko ONO , Yusuke SHIMAMUNE , Fuminori MORISAWA , Shizuki NAKAJIMA , Yuri HONDA , Kazuhiro KOSHIO , Masato SATO
CPC classification number: H03F3/21 , H03F1/0261 , H03F1/22 , H03F1/34 , H03F3/191 , H03F3/245 , H03F2200/144 , H03F2200/18 , H03F2200/318 , H03F2200/408 , H03F2200/451
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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公开(公告)号：US20170099033A1
公开(公告)日：2017-04-06
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：US20180083581A1
公开(公告)日：2018-03-22
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
CPC classification number: H03F3/21 , H03F1/0261 , H03F1/22 , H03F1/34 , H03F3/191 , H03F3/245 , H03F2200/144 , H03F2200/18 , H03F2200/318 , H03F2200/408 , H03F2200/451
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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公开(公告)号：US20200244229A1
公开(公告)日：2020-07-30
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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Patent Agency Ranking
公开(公告)号：US20190068131A1
公开(公告)日：2019-02-28
申请号：US16175951
申请日：2018-10-31
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：US20180302045A1
公开(公告)日：2018-10-18
申请号：US16013039
申请日：2018-06-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota ISHIHARA , Seiko ONO , Yusuke SHIMAMUNE , Fuminori MORISAWA , Shizuki NAKAJIMA , Yuri HONDA , Kazuhiro KOSHIO , Masato SATO
CPC classification number: H03F3/21 , H03F1/0261 , H03F1/22 , H03F1/34 , H03F3/191 , H03F3/245 , H03F2200/144 , H03F2200/18 , H03F2200/318 , H03F2200/408 , H03F2200/451
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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公开(公告)号：US20180262165A1
公开(公告)日：2018-09-13
申请号：US15918414
申请日：2018-03-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota ISHIHARA , Yusuke SHIMAMUNE
CPC classification number: H03F1/30 , H03F3/195 , H03F3/211 , H03F3/213 , H03F3/245 , H03F3/45085 , H03F2200/156 , H03F2200/219 , H03F2200/408 , H03F2200/447 , H03F2200/451 , H03F2200/468 , H03F2203/21181
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：US20180102742A1
公开(公告)日：2018-04-12
申请号：US15840414
申请日：2017-12-13
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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10.发明申请SEMICONDUCTOR INTEGRATED CIRCUIT APPARATUS AND RADIO-FREQUENCY POWER AMPLIFIER MODULE 有权半导体集成电路设备和无线电频率功率放大器模块公开(公告)号：US20140015568A1
公开(公告)日：2014-01-16
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: H04W52/52
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 ×1/5 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的电流加上×1/5的对数检测部分，以实现对数线性检测方法。
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