公开(公告)号：JP2010183641A

公开(公告)日：2010-08-19

申请号：JP2010098898

申请日：2010-04-22

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KAUFMANN RALF ,  HUNZEKER DARIN ,  CAMARILLO RICHARD J

IPC: H03F1/02 ,  H03F3/24 ,  H03F1/14 ,  H03F3/60 ,  H03F3/68 ,  H03F3/72 ,  H03G1/00 ,  H04B1/04 ,  H04Q7/32

CPC classification number: H03F3/72 ,  H03F3/602 ,  H03F2203/7231 ,  H03F2203/7239 ,  H03G1/0088

Abstract: PROBLEM TO BE SOLVED: To enhance efficiency in using power amplifier.
SOLUTION: A power amplifier circuit device includes a driver amplifier, a switch, an amplifier path having a band pass filter and a power amplifier, and a bypass path which bypasses the power amplifier when excess gain and output power are not needed. When an RF-analog signal from the driver amplifier is switched to the amplifier path, the signal is band-pass filtered and amplified. Then the signal is split into an in-phase signal and a quadrature signal. Either the in-phase or quadrature signal is inverted and summed with the other in-phase or quadrature signal, and the summed signal is transmitted to an output port. When the RF-signal from the driver amplifier is switched to the bypass path, the power amplifier is turned off and the bypass path directs the signal to the output of the power amplifier, which appears as a high impedance to the signal. The signal is reflected from the power amplifier to the output port.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提高使用功率放大器的效率。 解决方案：功率放大器电路器件包括驱动器放大器，开关，具有带通滤波器的放大器路径和功率放大器，以及当不需要过量增益和输出功率时旁路功率放大器的旁路路径。 当来自驱动放大器的RF模拟信号切换到放大器路径时，该信号被带通滤波和放大。 然后将信号分成同相信号和正交信号。 同相或正交信号被反相并与另一个同相或正交信号相加，并且相加的信号被发送到输出端口。 当来自驱动放大器的RF信号被切换到旁路路径时，功率放大器关闭，并且旁路路径将信号引导到功率放大器的输出端，功率放大器的输出显示为信号的高阻抗。 信号从功率放大器反射到输出端口。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007184955A

公开(公告)日：2007-07-19

申请号：JP2007027995

申请日：2007-02-07

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SEVIC JOHN F ,  CAMARILLO RICHARD J

IPC: H03F3/24 ,  H03F3/68 ,  H03F1/02 ,  H03F3/21 ,  H03F3/72

CPC classification number: H03F3/211 ,  H03F1/0244 ,  H03F1/0261 ,  H03F3/72 ,  H03F2203/7236

Abstract: PROBLEM TO BE SOLVED: To provide an amplifier circuit having a high linearity mode of operation and a high efficiency mode of operation.
SOLUTION: An amplifier circuit (100) has a high linearity mode operation and a high efficiency mode of operation. The amplifier circuit (100) comprises a plurality of amplifier (104a-104n) each having a variable active device periphery and a variable supply voltage; and a control circuit (102), coupled to the amplifiers (104a-104n). The control circuit (102) outputs a signal for decreasing the variable active device periphery and increasing the variable supply voltage when the amplifier circuit (100) operates in the high linearity mode of operation, and for increasing the variable active device periphery and decreasing the variable supply voltage when the amplifier circuit (100) operates in the high efficiency mode of operation.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供具有高线性度操作模式和高效率操作模式的放大器电路。 解决方案：放大器电路（100）具有高线性模式操作和高效率操作模式。 放大器电路（100）包括多个放大器（104a-104n），每个放大器具有可变有源器件周边和可变电源电压; 和耦合到放大器（104a-104n）的控制电路（102）。 控制电路（102）输出用于减小可变有源器件周边的信号，并且当放大器电路（100）以高线性度操作模式操作时增加可变电源电压，并且用于增加可变有源器件周边并减小变量 当放大器电路（100）以高效率操作模式工作时的电源电压。 版权所有（C）2007，JPO＆INPIT