公开(公告)号：US20040212435A1

公开(公告)日：2004-10-28

申请号：US10847877

申请日：2004-05-19

Applicant: Renesas Technology Corp.

Inventor： Satoshi Arai ,  Tsuyoshi Shibuya ,  Hitoshi Sekiguchi ,  Nobuhiro Matsudaira ,  Tomio Furuya ,  Masashi Maruyama ,  Yasushi Ohyama

IPC: H03G003/10

CPC classification number: H03G3/3047 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/19105 ,  H03G3/004 ,  H03G3/3042 ,  H01L2924/00014

Abstract: The present invention provides a high frequency power amplifier of an open-loop type, which outputs a signal having a level corresponding to an output level required under control of a power supply voltage for each output power FET, based on a control signal for the output level. The high frequency power amplifier is provided with a bias voltage generating circuit which generates a gate bias voltage of each output power FET according to an output voltage of a power control circuit for controlling the power supply voltage for the output power FET, based on the control signal for the output level.

Abstract translation: 本发明提供了一种开环型高频功率放大器，其基于用于输出的控制信号输出具有与每个输出功率FET的电源电压控制下所需的输出电平相对应的电平的信号 水平。 高频功率放大器设置有偏置电压发生电路，该偏置电压产生电路根据用于控制输出功率FET的电源电压的功率控制电路的输出电压，基于该控制来产生每个输出功率FET的栅极偏置电压 信号输出电平。

公开(公告)号：US20040212432A1

公开(公告)日：2004-10-28

申请号：US10811388

申请日：2004-03-29

Applicant: Renesas Technology Corp.

Inventor： Kyoichi Takahashi ,  Shinji Yamada ,  Masashi Maruyama

IPC: H03G003/10

CPC classification number: H03F1/0272 ,  H03G3/004 ,  H03G3/3047

Abstract: In a radio communication system wherein the detection of output level required for feedback control of output power is carried out by current detection, the stability of control loop and the response to change in request-to-send level are enhanced. 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 with 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.

Abstract translation: 在通过电流检测来进行对输出功率的反馈控制所需的输出电平的检测的无线通信系统中，控制环路的稳定性以及请求发送电平变化的响应得到增强。 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子和其反相输入端子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：US20040174219A1

公开(公告)日：2004-09-09

申请号：US10799673

申请日：2004-03-15

Applicant: Renesas Technology Corp.

Inventor： Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

IPC: H03G003/10

CPC classification number: H01L27/0629 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49111 ,  H01L2224/49175 ,  H03F1/301 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40 ,  H01L2924/00014

Abstract: The number of components of a high frequency power amplifier is reduced. A bias resistance ratio is adjusted in accordance with a change in the threshold voltage Vth of a transistor. There is provided a high frequency power amplifier having a plurality of amplifying systems, characterized in that each of the amplifying systems comprises an input terminal to which a signal to be amplified is supplied, an output terminal, a bias terminal, a plurality of amplifying stages which are sequentially cascaded between the input terminal and output terminal, and a bias circuit connected to the bias terminal and each of the amplifying stages to apply a bias potential to the amplifying stage, in that the amplifying stage includes a control terminal for receiving an input signal and the bias potential supplied to the stage and a first terminal for transmitting an output signal of the stage, and in that a first amplifying stage and a second amplifying stage of each of the amplifying systems are monolithically formed on a single semiconductor chip, and a part of bias resistors that constitute bias circuits of the first amplifying stage and second amplifying stage are monolithically formed on the semiconductor chip.

Abstract translation: 高频功率放大器的组件数量减少。 根据晶体管的阈值电压Vth的变化来调整偏置电阻比。 提供了一种具有多个放大系统的高频功率放大器，其特征在于，每个放大系统包括一个输入端，供给放大信号的输入端，输出端，偏置端，多个放大级 它们在输入端子和输出端子之间顺序级联，以及连接到偏置端子和每个放大级的偏置电路，以向放大级施加偏置电位，因为放大级包括用于接收输入端的控制端子 信号和提供给该级的偏置电位和用于发送该级的输出信号的第一端子，并且每个放大系统的第一放大级和第二放大级单片地形成在单个半导体芯片上，以及 构成第一放大级和第二放大级的偏置电路的偏置电阻的一部分是整体式的 y形成在半导体芯片上。