公开(公告)号：US07352244B2

公开(公告)日：2008-04-01

申请号：US11360437

申请日：2006-02-24

申请人： Kyoichi Takahashi ,  Takayuki Tsutsui ,  Hitoshi Akamine ,  Fuminori Morisawa ,  Nobuhiro Matsudaira

发明人： Kyoichi Takahashi ,  Takayuki Tsutsui ,  Hitoshi Akamine ,  Fuminori Morisawa ,  Nobuhiro Matsudaira

IPC分类号： H03G3/30

CPC分类号： H03F1/0261 ,  H03F1/0205 ,  H03F3/24 ,  H03F3/60 ,  H03F2200/105 ,  H03G3/3047

摘要： This invention provides an electronic part for high frequency power amplification (RF power module) which will automatically perform the precharge level setting for proper output power at start of transmission without requiring the software process for precharging to run on the baseband IC, which can reduce the burden on users, namely, mobile phone manufacturers. Such electronic part configured to amplify RF transmit signals includes an output power control circuit which supplies an output power control voltage to a bias control circuit in a high frequency power amplifier circuit, based on an output power level directive signal. This electronic part is equipped with a precharge circuit which raises the output power control voltage to produce a predetermined level of output power, while detecting a current flowing through a final-stage power amplifying element, triggered by rise of a supply voltage at start of transmission.

摘要翻译： 本发明提供了一种用于高频功率放大的电子部件（RF功率模块），其将在开始传输时自动执行预充电电平设置以用于正确的输出功率，而不需要预充电的软件处理在基带IC上运行，这可以减少 用户负担，即手机厂商。 配置为放大RF发射信号的这种电子部件包括：输出功率控制电路，其基于输出功率电平指令信号将输出功率控制电压提供给高频功率放大器电路中的偏置控制电路。 该电子部件配备有预充电电路，其提高输出功率控制电压以产生预定水平的输出功率，同时检测流过最后级功率放大元件的电流，由传输开始时的电源电压上升触发 。

公开(公告)号：US07333564B2

公开(公告)日：2008-02-19

申请号：US11024708

申请日：2004-12-30

申请人： Hiroki Sugiyama ,  Takashi Soga ,  Yusuke Shimamune ,  Shuji Tomono ,  Tomio Furuya ,  Kyoichi Takahashi

发明人： Hiroki Sugiyama ,  Takashi Soga ,  Yusuke Shimamune ,  Shuji Tomono ,  Tomio Furuya ,  Kyoichi Takahashi

IPC分类号： H04L25/03

CPC分类号： H03G3/3047 ,  H03G3/3042

摘要： The present invention provides a high frequency power amplifier circuit capable of obtaining sufficient detection output even in a range where a request output power level is low and performing a desired output power control by a control loop with the detection output in a radio communication system which detects output power and performs feedback control. An output power detection circuit which detects the level of output power on the basis of an AC signal supplied from a final amplification stage of a high frequency power amplification circuit via a capacitive element has a circuit configuration such that in a state where the output power control voltage is lower than a certain level, current (Isu) according to the output power control voltage is generated and supplied to the output power detection circuit, and detection sensitivity of the output power detection circuit improves according to the current.

摘要翻译： 本发明提供一种高频功率放大器电路，即使在请求输出功率电平低的范围内也能够获得足够的检测输出，并且通过检测输出在具有检测输出的无线电通信系统中进行期望的输出功率控制 输出功率并进行反馈控制。 输出功率检测电路，其通过电容元件检测基于从高频功率放大电路的最终放大级提供的AC信号的输出功率的电平，电路结构使得在输出功率控制 电压低于一定水平，产生根据输出功率控制电压的电流（Isu）并将其提供给输出功率检测电路，并且根据电流提高输出功率检测电路的检测灵敏度。

公开(公告)号：US07173492B2

公开(公告)日：2007-02-06

申请号：US11231819

申请日：2005-09-22

申请人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Hitoshi Akamine

发明人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Hitoshi Akamine

IPC分类号： H03G3/30

CPC分类号： H03G3/3047 ,  H03F2200/504

摘要： The present invention provides a high frequency amplifier suitable for use in a wireless communication system which performs detection of an output level necessary for feedback control by a current detection system, wherein control sensitivity in an area low in transmit request level is lowered so that an output level can be controlled over the whole control range with satisfactory accuracy. There is provided a high frequency power amplification electric part constituting a wireless communication system, which performs detection of an output level necessary for feedback control of output power by a current detection system, compares the output level detected signal and an output level designation signal and generates a bias voltage for a high frequency power amplifier according to the difference therebetween to thereby control gain, wherein an nth root converter or a logarithm converter is provided between a current detector and a current-voltage converter.

摘要翻译： 本发明提供了一种适用于无线通信系统的高频放大器，其执行由当前检测系统进行反馈控制所需的输出电平的检测，其中传输请求级别低的区域中的控制灵敏度降低，使得输出 水平可以在整个控制范围内进行控制，精度满意。 提供构成无线通信系统的高频功率放大电部件，其执行由电流检测系统对输出功率的反馈控制所需的输出电平的检测，比较输出电平检测信号和输出电平指定信号，并产生 根据它们之间的差异，用于高频功率放大器的偏置电压，从而控制增益，其中在电流检测器和电流 - 电压转换器之间提供第n根转换器或对数转换器。

公开(公告)号：US20060012435A1

公开(公告)日：2006-01-19

申请号：US11231819

申请日：2005-09-22

申请人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Hitoshi Akamine

发明人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Hitoshi Akamine

IPC分类号： H03G3/10

CPC分类号： H03G3/3047 ,  H03F2200/504

摘要： The present invention provides a high frequency amplifier suitable for use in a wireless communication system which performs detection of an output level necessary for feedback control by a current detection system, wherein control sensitivity in an area low in transmit request level is lowered so that an output level can be controlled over the whole control range with satisfactory accuracy. There is provided a high frequency power amplification electric part constituting a wireless communication system, which performs detection of an output level necessary for feedback control of output power by a current detection system, compares the output level detected signal and an output level designation signal and generates a bias voltage for a high frequency power amplifier according to the difference therebetween to thereby control gain, wherein an nth root converter or a logarithm converter is provided between a current detector and a current-voltage converter.

摘要翻译： 本发明提供了一种适用于无线通信系统的高频放大器，其执行由当前检测系统进行反馈控制所需的输出电平的检测，其中传输请求级别低的区域中的控制灵敏度降低，使得输出 水平可以在整个控制范围内进行控制，具有令人满意的精度。 提供构成无线通信系统的高频功率放大电部件，其执行由电流检测系统对输出功率的反馈控制所需的输出电平的检测，比较输出电平检测信号和输出电平指定信号，并产生 根据它们之间的差异，用于高频功率放大器的偏置电压，从而控制增益，其中在电流检测器和电流 - 电压转换器之间提供第n根转换器或对数转换器。

公开(公告)号：US4364082A

公开(公告)日：1982-12-14

申请号：US235608

申请日：1981-02-18

申请人： Kenichi Tonomura ,  Kyoichi Takahashi

发明人： Kenichi Tonomura ,  Kyoichi Takahashi

IPC分类号： H04N9/45 ,  H04N9/64 ,  H04N9/535 ,  H03D3/18

CPC分类号： H04N9/643

摘要： The phase detection circuit includes a first phase detector for receiving an input signal and a first reference signal, a second phase detector for receiving the input signal and a second reference signal having a different phase from that of the first reference signal and a level discriminator for receiving the phase detection output of the first phase detector. The detection operation of the second phase detector can be inhibited directly by means of the discrimination output of this level discriminator. Accordingly, the phase detection output can be obtained from this phase detection circuit only when the phase difference between the input signal and the first reference signal falls within a predetermined range. The phase detection circuit having such a limiting function is suitable for application to an automatic tint control circuit of a color television receiver.

摘要翻译： 相位检测电路包括用于接收输入信号和第一参考信号的第一相位检测器，用于接收输入信号的第二相位检测器和与第一参考信号具有不同相位的第二参考信号和用于 接收第一相位检测器的相位检测输出。 可以通过该电平鉴别器的判别输出来直接抑制第二相位检测器的检测操作。 因此，只有当输入信号和第一参考信号之间的相位差落在预定范围内时，才能从该相位检测电路获得相位检测输出。 具有这种限制功能的相位检测电路适用于彩色电视接收机的自动色调控制电路。

公开(公告)号：US08217716B2

公开(公告)日：2012-07-10

申请号：US12732383

申请日：2010-03-26

申请人： Satoshi Tanaka ,  Kyoichi Takahashi ,  Masatoshi Hase ,  Masahiro Ito

发明人： Satoshi Tanaka ,  Kyoichi Takahashi ,  Masatoshi Hase ,  Masahiro Ito

IPC分类号： H03G9/00 ,  H03G3/10

CPC分类号： H03F1/30 ,  H03F3/193 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/18 ,  H03F2200/318 ,  H03F2200/408 ,  H03F2203/7209

摘要： To provide a bias circuit for gain control that can reduce gain variation at low-power output, facilitate setting of output power, and is unlikely to be affected by variation in element values and variations among products. Use in an HPA having three bias circuits serially-connected is assumed. Current of the third bias circuit is varied with a square-law characteristic. The square-law characteristic is amplified by a buffer amplifier including a linear amplifier and a peripheral circuit thereof. Output current of the third bias circuit varies depending on a current drivability coefficient of the diode-connected FET branched from the connection point between a constant current source and the linear amplifier. The output current of the third bias circuit is controlled by providing a circuit that draws a certain amount of current from the current flowing in the FET.

摘要翻译： 为了提供增益控制的偏置电路，可以减少低功率输出时的增益变化，便于设置输出功率，并且不太可能受元件值的变化和产品之间的变化的影响。 假设在具有串联连接的三个偏置电路的HPA中使用。 第三偏置电路的电流以平方律特性变化。 平方律特性由包括线性放大器及其外围电路的缓冲放大器放大。 第三偏置电路的输出电流根据从恒定电流源和线性放大器之间的连接点分支的二极管连接的FET的电流驱动系数而变化。 第三偏置电路的输出电流通过提供从流过FET的电流吸取一定量的电流的电路来控制。

公开(公告)号：US20070066250A1

公开(公告)日：2007-03-22

申请号：US11524380

申请日：2006-09-21

申请人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Takashi Yokoi

发明人： Kyoichi Takahashi ,  Nobuhiro Matsudaira ,  Takashi Yokoi

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H03G3/3042 ,  G01R21/01 ,  H03G3/3047

摘要： The present invention provides electronic parts for amplifying high frequency power capable of expanding a dynamic range of an output power detection circuit, obtaining a continuous detection output having no inflexion point from a low region of output power to its high region and thereby improving controllability of the output power. In a wireless communication system which controls output power of a high frequency power amplifier, based on an output power detection signal and a signal indicative of an output level, an output power detection circuit is provided with a multi-stage configured amplifier which amplifies a high frequency signal taken out via a coupler and capacitive elements. Further, a plurality of detection circuits which detect outputs of amplifiers of respective stages, and a detection circuit which detects the high frequency signal without passing through the multi-stage configured amplifier are provided. One obtained by combining the outputs of these detection circuits is inputted to an error amplifier for generating an output power control signal, as the output power detection signal to thereby generate a control signal for the high frequency power amplifier.

摘要翻译： 本发明提供了用于放大能够扩展输出功率检测电路的动态范围的高频电力的电子部件，从输出功率的低区域到其高区域获得没有拐点的连续检测输出，从而提高了输出功率检测电路的可控性 输出功率。 在控制高频功率放大器的输出功率的无线通信系统中，基于输出功率检测信号和表示输出电平的信号，输出功率检测电路具有多级配置放大器，放大高电平 频率信号通过耦合器和电容元件取出。 此外，还提供了检测各级的放大器的输出的多个检测电路，以及检测高频信号而不经过多级配置的放大器的检测电路。 将通过组合这些检测电路的输出而获得的输入信号输入到用于产生输出功率控制信号的误差放大器作为输出功率检测信号，从而产生高频功率放大器的控制信号。

公开(公告)号：US20060139094A1

公开(公告)日：2006-06-29

申请号：US11362818

申请日：2006-02-28

申请人： Kyoichi Takahashi ,  Shinji Yamada ,  Masashi Maruyama

发明人： Kyoichi Takahashi ,  Shinji Yamada ,  Masashi Maruyama

IPC分类号： H03G3/10

CPC分类号： H03F1/0272 ,  H03G3/004 ,  H03G3/3047

摘要： In a radio communication system, an electronic component for high frequency power amplifier carries out the detection of output level, required for feedback control of the output power of a high frequency power amplification circuit, by current detection. The electronic component has an error amplifier. The error amplifier compares an output level detection signal with an output level instruction signal, and generates a signal for controlling the gain of the high frequency power amplification circuit according to the difference between them. For the error amplifier, a low-pass amplification circuit is used. The amplification circuit is provided with, between its output terminal and its inverting input terminal, a phase compensation circuit. The phase compensation circuit comprises a resistance element, and another resistance element and a capacitive element in series connected in parallel with the resistance element.

摘要翻译： 在无线电通信系统中，用于高频功率放大器的电子部件通过电流检测来执行对高频功率放大电路的输出功率的反馈控制所需的输出电平的检测。 电子元件具有误差放大器。 误差放大器将输出电平检测信号与输出电平指令信号进行比较，并根据它们之间的差异产生用于控制高频功率放大电路的增益的信号。 对于误差放大器，使用低通放大电路。 放大电路在其输出端与其反相输入端之间设置有相位补偿电路。 相位补偿电路包括电阻元件和与电阻元件并联连接的另一个电阻元件和电容元件。

公开(公告)号：US20060066398A1

公开(公告)日：2006-03-30

申请号：US11227109

申请日：2005-09-16

申请人： Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

发明人： Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

IPC分类号： H03G3/20

CPC分类号： H03F3/191 ,  H03F1/30 ,  H03F1/32 ,  H03G1/007 ,  H03G3/004 ,  H03G3/3047 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

摘要： In a high frequency power amplifier circuit in which bias voltages are applied to the transistors for amplification by current mirroring, this invention enables preventing waveform distortion near the peak output power level by allowing sufficient idle currents to flow through the transistors for amplification, while enhancing the power efficiency in a low output power region. The power amplifier includes a detection circuit comprising a transistor for detection which receives the AC component of an input signal to the last-stage transistor for amplification at its control terminal, a current mirror circuit which mirrors current flowing through that transistor, and a current-voltage conversion means which converts current flowing in the slave side of the current mirror circuit into a voltage. In the detection circuit, a voltage from a bias circuit for generating the bias voltages for the transistors for amplification is applied to the control terminal of the transistor for detection and output of the detection circuit is applied to the control terminal of the last-stage transistor for amplification.

摘要翻译： 在通过电流镜像将偏置电压施加到晶体管以进行放大的高频功率放大器电路中，本发明能够通过允许足够的空闲电流流过晶体管进行放大，从而防止峰值输出功率电平附近的波形失真，同时增强 低输出功率区域的功率效率。 功率放大器包括检测电路，该检测电路包括用于检测的晶体管，其将用于在其控制端子处放大的最后级晶体管的输入信号的AC分量接收;反射电流流过该晶体管的电流镜电路， 电压转换装置，其将在电流镜电路的从侧中流动的电流转换成电压。 在检测电路中，用于产生用于放大的晶体管的偏置电压的偏置电路的电压被施加到用于检测的晶体管的控制端，并且检测电路的输出被施加到最后级晶体管的控制端 用于扩增。

公开(公告)号：US06919762B2

公开(公告)日：2005-07-19

申请号：US10722532

申请日：2003-11-28

申请人： Hitoshi Akamine ,  Kyoichi Takahashi ,  Masahiro Tsuchiya

发明人： Hitoshi Akamine ,  Kyoichi Takahashi ,  Masahiro Tsuchiya

IPC分类号： H03F3/68 ,  H03F1/02 ,  H03F1/32 ,  H03F3/24 ,  H03G3/30 ,  H03G5/16

CPC分类号： H03G3/3047 ,  H03F1/0272 ,  H03F2200/294 ,  H03F2200/372

摘要： The present invention provides a high frequency power amplifier of a multi-stage configuration in which a plurality of transistors for power amplification are cascaded, with reduced distortion of a signal in a region where an output power level is low and improved power efficiency. In a high frequency power amplifier electric part in which a plurality of transistors for power amplification are cascaded, a transistor for output level detection is provided whose gate terminal receives a gate input of a transistor for power amplification in the final stage via a resistive element of which resistance value is 100 Ω or less. Current detected by the transistor is converted to voltage. The voltage is compared with output control voltage by an error amplifier. Voltage according to the potential difference is applied to the gate terminals of the transistors for power amplification in the amplification stages to thereby pass idle current.

摘要翻译： 本发明提供一种多级配置的高频功率放大器，其中用于功率放大的多个晶体管级联，降低输出功率电平低的区域中的信号失真并提高功率效率。 在用于功率放大的多个晶体管级联的高频功率放大器电气部件中，提供用于输出电平检测的晶体管，其栅极端子经由电阻元件的电阻元件在最终级中接收用于功率放大的晶体管的栅极输入 该电阻值为100Ω以下。 由晶体管检测的电流转换为电压。 通过误差放大器将电压与输出控制电压进行比较。 根据电位差的电压被施加到放大级中用于功率放大的晶体管的栅极端子，从而使空闲电流通过。