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公开(公告)号：US20170099034A1
公开(公告)日：2017-04-06
申请号：US15380383
申请日：2016-12-15
发明人： Masao Kondo , Hidetoshi Matsumoto
CPC分类号： H03F1/0222 , H03F1/0227 , H03F1/0261 , H03F1/0277 , H03F3/19 , H03F3/211 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/451 , H03F2203/21131
摘要： A power amplifier module includes an amplifier transistor and a bias circuit. A first power supply voltage based on a first operation mode or a second power supply voltage based on a second operation mode is supplied to the amplifier transistor. The amplifier transistor receives a first signal and outputs a second signal obtained by amplifying the first signal. The bias circuit supplies a bias current to the amplifier transistor. The bias circuit includes first and second resistors and first and second transistors. The first transistor is connected in series with the first resistor and is turned ON by a first bias control voltage which is supplied when the first operation mode is used. The second transistor is connected in series with the second resistor and is turned ON by a second bias control voltage which is supplied when the second operation mode is used.
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公开(公告)号：US20160373069A1
公开(公告)日：2016-12-22
申请号：US15251012
申请日：2016-08-30
发明人： Kiichiro Takenaka , Masahiro Ito , Masakazu Hori , Mitsuo Ariie , Hayato Nakamura , Satoshi Arayashiki , Hidetoshi Matsumoto , Tsuyoshi Sato , Satoshi Tanaka
CPC分类号： H03F1/0222 , H03F1/02 , H03F1/0216 , H03F1/0261 , H03F1/32 , H03F1/42 , H03F1/52 , H03F1/56 , H03F3/04 , H03F3/19 , H03F3/21 , H03F2200/102 , H03F2200/408 , H03F2200/411 , H03F2200/444 , H03F2200/451 , H03G3/004
摘要： Improvement in linearity is achieved at low costs in a power amplifier module employing an envelope tracking system. The power amplifier module includes a first power amplifier circuit that amplifies a radio frequency signal and that outputs a first amplified signal, a second power amplifier circuit that amplifies the first amplified signal on the basis of a source voltage varying depending on amplitude of the radio frequency signal and that outputs a second amplified signal, and a matching circuit that includes first and second capacitors connected in series between the first and second power amplifier circuit and an inductor connected between a node between the first and second capacitors and a ground and that decreases a gain of the first power amplifier circuit as the source voltage of the second power amplifier circuit increases.
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公开(公告)号：US20160294328A1
公开(公告)日：2016-10-06
申请号：US15077124
申请日：2016-03-22
发明人： Masao Kondo , Hidetoshi Matsumoto
CPC分类号： H03F1/0222 , H03F1/0227 , H03F1/0261 , H03F1/0277 , H03F3/19 , H03F3/211 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/451 , H03F2203/21131
摘要： A power amplifier module includes an amplifier transistor and a bias circuit. A first power supply voltage based on a first operation mode or a second power supply voltage based on a second operation mode is supplied to the amplifier transistor. The amplifier transistor receives a first signal and outputs a second signal obtained by amplifying the first signal. The bias circuit supplies a bias current to the amplifier transistor. The bias circuit includes first and second resistors and first and second transistors. The first transistor is connected in series with the first resistor and is turned ON by a first bias control voltage which is supplied when the first operation mode is used. The second transistor is connected in series with the second resistor and is turned ON by a second bias control voltage which is supplied when the second operation mode is used.
摘要翻译： 功率放大器模块包括放大器晶体管和偏置电路。 基于第一操作模式或基于第二操作模式的第二电源电压的第一电源电压被提供给放大器晶体管。 放大器晶体管接收第一信号并输出通过放大第一信号而获得的第二信号。 偏置电路向放大器晶体管提供偏置电流。 偏置电路包括第一和第二电阻器以及第一和第二晶体管。 第一晶体管与第一电阻器串联连接，并且通过在使用第一操作模式时提供的第一偏置控制电压导通。 第二晶体管与第二电阻器串联连接，并且通过在使用第二操作模式时提供的第二偏置控制电压导通。
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公开(公告)号：US09106181B2
公开(公告)日：2015-08-11
申请号：US14552597
申请日：2014-11-25
CPC分类号： H03F1/0205 , H03F1/02 , H03F1/0227 , H03F1/32 , H03F1/3223 , H03F1/56 , H03F3/193 , H03F3/195 , H03F3/213 , H03F3/245 , H03F2200/18 , H03F2200/222 , H03F2200/318 , H03F2200/372 , H03F2200/387 , H03F2200/411 , H03F2200/451
摘要： Linearity and power efficiency in a power amplifier circuit are enhanced. The power amplifier circuit includes a first transistor that amplifies a signal input to the base and that outputs the amplified signal from the collector and a first capacitor that is disposed between the base and the collector of the first transistor and that has voltage dependency of a capacitance value lower than that of a base-collector parasitic capacitance value of the first transistor.
摘要翻译： 增强了功率放大器电路中的线性和功率效率。 功率放大器电路包括：第一晶体管，其放大输入到基极的信号并输出来自集电极的放大信号;以及第一电容器，其设置在第一晶体管的基极和集电极之间，并且具有电容的电压依赖性 的值低于第一晶体管的基极 - 集电极寄生电容值的值。
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公开(公告)号：US20210344304A1
公开(公告)日：2021-11-04
申请号：US17375474
申请日：2021-07-14
发明人： Masao Kondo , Hidetoshi Matsumoto
摘要： A power amplifier module includes an amplifier transistor and a bias circuit. A first power supply voltage based on a first operation mode or a second power supply voltage based on a second operation mode is supplied to the amplifier transistor. The amplifier transistor receives a first signal and outputs a second signal obtained by amplifying the first signal. The bias circuit supplies a bias current to the amplifier transistor. The bias circuit includes first and second resistors and first and second transistors. The first transistor is connected in series with the first resistor and is turned ON by a first bias control voltage which is supplied when the first operation mode is used. The second transistor is connected in series with the second resistor and is turned ON by a second bias control voltage which is supplied when the second operation mode is used.
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公开(公告)号：US10917057B2
公开(公告)日：2021-02-09
申请号：US16654640
申请日：2019-10-16
摘要： A power amplifier circuit includes a first transistor, wherein a radio frequency signal is inputted to a base or gate of the first transistor; a second transistor having an emitter connected to a collector or drain of the first transistor, wherein a first voltage is supplied to a collector of the second transistor, and a first amplified signal obtained by amplifying the radio frequency signal is outputted from the collector of the second transistor; and a third transistor configured to supply a bias voltage to a base of the second transistor. A second voltage is supplied to a collector or drain of the third transistor, a third voltage corresponding to the first voltage is supplied to a base or gate of the third transistor, and the bias voltage, which corresponds to the third voltage, is supplied from an emitter or source of the third transistor.
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公开(公告)号：US10797657B2
公开(公告)日：2020-10-06
申请号：US16217506
申请日：2018-12-12
摘要： A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.
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公开(公告)号：US10594341B2
公开(公告)日：2020-03-17
申请号：US16274391
申请日：2019-02-13
摘要： A high-frequency-signal transceiver circuit transmits and receives a signal between first to sixth antenna terminals and terminals near a high-frequency circuit. The high-frequency-signal transceiver circuit includes first to sixth circuits connected to the corresponding first to sixth antenna terminals. One of the first to sixth circuits transmits and receives only a signal of time division multiplexing communication.
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公开(公告)号：US20190058444A1
公开(公告)日：2019-02-21
申请号：US16169488
申请日：2018-10-24
发明人： Masao Kondo , Hidetoshi Matsumoto
CPC分类号： H03F1/0222 , H03F1/0227 , H03F1/0261 , H03F1/0277 , H03F3/19 , H03F3/211 , H03F3/245 , H03F2200/102 , H03F2200/105 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/451 , H03F2203/21131
摘要： A power amplifier module includes an amplifier transistor and a bias circuit. A first power supply voltage based on a first operation mode or a second power supply voltage based on a second operation mode is supplied to the amplifier transistor. The amplifier transistor receives a first signal and outputs a second signal obtained by amplifying the first signal. The bias circuit supplies a bias current to the amplifier transistor. The bias circuit includes first and second resistors and first and second transistors. The first transistor is connected in series with the first resistor and is turned ON by a first bias control voltage which is supplied when the first operation mode is used. The second transistor is connected in series with the second resistor and is turned ON by a second bias control voltage which is supplied when the second operation mode is used.
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公开(公告)号：US20190028074A1
公开(公告)日：2019-01-24
申请号：US16038770
申请日：2018-07-18
发明人： Tsuyoshi Sato , Hidetoshi Matsumoto , Kiichiro Takenaka , Masahiro Ito , Satoshi Tanaka , Takahiro Katamata
CPC分类号： H03F3/245 , H03F3/195 , H03F3/211 , H03F3/4508 , H03F2200/294
摘要： A communication unit includes a first input terminal to which a first transmission signal based on a first communication standard is input, a second input terminal to which a second transmission signal based on a second communication standard is input, a first transmission signal amplifier circuit outputting a first amplified transmission signal, or outputting a second amplified transmission signal, a first input-output terminal outputting the first amplified transmission signal or the second amplified transmission signal, and at least one of a first reception signal and a second reception signal inputted to the first input-output terminal, a first reception signal amplifier circuit performing at least one of operation of outputting a first amplified reception signal and operation of outputting a second amplified reception signal, a first output terminal outputting the first amplified reception signal, and a second output terminal outputting the second amplified reception signal.
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