公开(公告)号：EP1374388A1

公开(公告)日：2004-01-02

申请号：EP02719368.9

申请日：2002-03-25

Applicant: QUALCOMM INCORPORATED

Inventor： PERSICO, Charles ,  KLAREN, Jonathan ,  APARIN, Vladimir

IPC: H03F1/02

CPC classification number: H03F1/0261

Abstract: A power amplifier having bias that may be automatically adjusted based on a detected output power level. The amplifier includes one or more amplifier stages operatively coupled to a control unit. The amplifier stage(s) couple together (e.g., in series) and recive and amplify an RF input signal to provide an RF output signal. A power detector detects the RF output signal level (or power) and provides a detected signal. A control unit conditions the detected signal (e.g., with a particular transfer characteristic) to provide at least one conditioned signal. A bias control generator receives the conditioned signal(s) and provides at least one bias control signal, with each bias control signal used to adjust the bias of a respective amplifier stage. The bias adjustment is performed in a manner to achieve the desired level of linearity while minimizing power consumption.

公开(公告)号：WO2003005528A3

公开(公告)日：2003-01-16

申请号：PCT/US2002/021041

申请日：2002-07-03

Applicant: QUALCOMM INCORPORATED

Inventor： BALLANTYNE, GARY, J. ,  BARGROFF, Keith ,  CHAN, Paul, L. ,  KLAREN, Jonathan ,  PERSICO, Charles, J. ,  SCOTT, Walter, Charles ,  SITHIDETH, Somphou

IPC: H02J7/00

Abstract: A battery (102) powers a wireless telephone's power amplifier (106) through a Switch Mode Power Supply (SMPS) (104). The SMPS has a capacity lower than the maximum power requirements of the amplifier. When a controller (116) senses that an amplifier power-requirements threshold has been exceeded, it closes a switch (114) parallel to the SMPS, allowing power to flow from the battery to the amplifier without passing through the SMPS. This architecture allows the use of a smaller SMPS, and eliminates SMPS-generated noise to the amplifier when the amplifier is least able to tolerate such noise, namely, under high power conditions.

公开(公告)号：WO2002082638A1

公开(公告)日：2002-10-17

申请号：PCT/US2002/009459

申请日：2002-03-25

Applicant: QUALCOMM INCORPORATED

Inventor： PERSICO, Charles ,  KLAREN, Jonathan ,  APARIN, Vladimir

IPC: H03F1/02

CPC classification number: H03F1/0261

Abstract: A power amplifier having bias that may be automatically adjusted based on a detected output power level. The amplifier includes one or more amplifier stages operatively coupled to a control unit. The amplifier stage(s) couple together (e.g., in series) and recive and amplify an RF input signal to provide an RF output signal. A power detector detects the RF output signal level (or power) and provides a detected signal. A control unit conditions the detected signal (e.g., with a particular transfer characteristic) to provide at least one conditioned signal. A bias control generator receives the conditioned signal(s) and provides at least one bias control signal, with each bias control signal used to adjust the bias of a respective amplifier stage. The bias adjustment is performed in a manner to achieve the desired level of linearity while minimizing power consumption.

Abstract translation: 具有可以基于检测到的输出功率电平自动调整的偏置的功率放大器。 放大器包括可操作地耦合到控制单元的一个或多个放大器级。 放大器级耦合在一起（例如，串联）并且回收并放大RF输入信号以提供RF输出信号。 功率检测器检测RF输出信号电平（或功率）并提供检测信号。 控制单元调节检测到的信号（例如，具有特定传送特性）以提供至少一个调节信号。 偏置控制发生器接收经调理的信号并提供至少一个偏置控制信号，每个偏置控制信号用于调整相应放大器级的偏置。 以实现期望的线性水平同时最小化功耗的方式执行偏置调整。

公开(公告)号：WO2003038995A1

公开(公告)日：2003-05-08

申请号：PCT/US2002/034803

申请日：2002-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： KLAREN, Jonathan ,  PERSICO, Charles, J. ,  WALTER, Scott ,  CHAN, Paul, L.

IPC: H03F3/72

CPC classification number: H03F3/602 ,  H03F3/72 ,  H03F2200/198

Abstract: A balanced power amplifier circuit arrangement comprises a driver amplifier stage (22) adapted to receive and amplify a signal. The amplified signal is input to a first coupler (26). The first coupler (26) produces an in-phase signal and an out-of-phase quadrature signal. A first power amplifier (38) receives and amplifies the in-phase signal. A second power amplifier (40) receives and amplifies the out-of-phase signal. A first switch (28) alternately connects an isolated port of the first coupler to ground (32) or a bypass path (36). A second coupler (42) receives and combines the amplified in-phase signal and the amplified out-of-phase signal to produce a combined signal. A second switch (30) alternately connects an isolated port of the second coupler (42) to either ground (34) or the bypass path (36). When the power amplifiers (38, 40) are powered down, the first coupler (26) splits the RF-signal into an in-phase signal and an out-of-phase signal. The power amplifiers (38, 40) appear as reflective impedances to the signal when they are powered down. Each signal reflects off the first and second power amplifiers (38, 40), respectively. The first coupler (26) combines the reflected signals and routes the combined signal through the bypass path (36) to the second coupler (42). The second coupler (42) splits the signal into an in-phase and out-of-phase signal and routes each to the power amplifiers (38, 40). The power amplifiers (38, 40) reflect each signal back to the second coupler (42). The second coupler (42) combines the signals and routes the combined signal to the RF-output port. The circuit arrangement enables the integration of the balanced amplifier and first and second couplers (26, 42) into a single power amplifier package to provide low power bypassing without the need of an external circulator component.

Abstract translation: 平衡功率放大器电路装置包括适于接收和放大信号的驱动放大器级（22）。 放大的信号被输入到第一耦合器（26）。 第一耦合器（26）产生同相信号和异相正交信号。 第一功率放大器（38）接收并放大同相信号。 第二功率放大器（40）接收并放大异相信号。 第一开关（28）将第一耦合器的隔离端口交替地连接到地（32）或旁路路径（36）。 第二耦合器（42）接收并组合放大的同相信号和放大的异相信号以产生组合信号。 第二开关（30）将第二耦合器（42）的隔离端口交替地连接到接地（34）或旁路路径（36）。 当功率放大器（38,40）断电时，第一耦合器（26）将RF信号分为同相信号和异相信号。 当功率放大器断电时，功率放大器（38,40）显示为信号的反射阻抗。 每个信号分别反射第一和第二功率放大器（38,40）。 第一耦合器（26）组合反射信号并将组合的信号通过旁通路径（36）传送到第二耦合器（42）。 第二耦合器（42）将信号分离成同相和异相信号，并将每个信号路由到功率放大器（38,40）。 功率放大器（38,40）将每个信号反射回第二耦合器（42）。 第二耦合器（42）组合信号并将组合信号路由到RF输出端口。 该电路装置能够将平衡放大器和第一和第二耦合器（26,42）集成到单个功率放大器封装中，以提供低功率旁路，而不需要外部循环器组件。

公开(公告)号：WO2002103375A2

公开(公告)日：2002-12-27

申请号：PCT/US2002/018963

申请日：2002-06-13

Applicant: QUALCOMM INCORPORATED

Inventor： ZHOU, Jianjun ,  KLAREN, Jonathan ,  PERSICO, Charles, J.

IPC: G01R21/00

CPC classification number: G01R21/14 ,  H03G3/04 ,  H03G3/3036

Abstract: A power detector (50) detects a power level of an amplified signal (S20) produced by a power amplifier (16) on the same integrated circuit (100). The power detector compensates for an effect of temperature variations on the magnitude of the detected power level.

Abstract translation: 功率检测器（50）检测由同一集成电路（100）上的功率放大器（16）产生的放大信号（S20）的功率电平。 功率检测器补偿温度变化对检测到的功率电平的幅度的影响。

公开(公告)号：WO2003055084A1

公开(公告)日：2003-07-03

申请号：PCT/US2002/033804

申请日：2002-10-16

Applicant: QUALCOMM, INCORPORATED

Inventor： CHAN, Paul, L. ,  KLAREN, Jonathan ,  PERSICO, Charles, J. ,  WALTER, Scott

IPC: H04B1/04

CPC classification number: H03F1/0261 ,  H03F1/32 ,  H03F2200/294 ,  H03F2200/372 ,  H04B1/0466

Abstract: Power detectors sense load mismatch conditions and cause the power output of a power amplifier to be reduced in response to a load mismatch. Transmitted and reflected power measurements are used to calculate a load mismatch criterion. A power amplifier is configured based on the calculated load mismatch criterion. A dual-directional coupler may be used to separate a power signal into transmitted and reflected components. With output power reduced under load mismatch conditions, signal distortion levels may be reduced to acceptable levels.

Abstract translation: 功率检测器检测负载失配条件，并且使功率放大器的功率输出响应于负载不匹配而减小。 传输和反射功率测量用于计算负载失配准则。 功率放大器基于计算出的负载失配准则进行配置。 双向耦合器可以用于将功率信号分离成传输和反射的部件。 在负载不匹配条件下输出功率降低时，信号失真电平可能会降低到可接受的水平。

公开(公告)号：EP1413036B1

公开(公告)日：2016-11-23

申请号：EP02756369.1

申请日：2002-07-03

Applicant: QUALCOMM INCORPORATED

Inventor： BALLANTYNE, GARY J. ,  BARGROFF, Keith ,  CHAN, Paul, L. ,  KLAREN, Jonathan ,  PERSICO, Charles, J. ,  SCOTT, Walter, Charles ,  SITHIDETH, Somphou

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  Y10T307/724

公开(公告)号：EP1413036A2

公开(公告)日：2004-04-28

申请号：EP02756369.1

申请日：2002-07-02

Applicant: QUALCOMM INCORPORATED

Inventor： BALLANTYNE, GARY J. ,  BARGROFF, Keith ,  CHAN, Paul, L. ,  KLAREN, Jonathan ,  PERSICO, Charles, J. ,  SCOTT, Walter, Charles ,  SITHIDETH, Somphou

IPC: H02J7/00

CPC classification number: H02J7/0065 ,  Y10T307/724

Abstract: A battery (102) powers a wireless telephone's power amplifier (106) through a Switch Mode Power Supply (SMPS) (104). The SMPS has a capacity lower than the maximum power requirements of the amplifier. When a controller (116) senses that an amplifier power-requirements threshold has been exceeded, it closes a switch (114) parallel to the SMPS, allowing power to flow from the battery to the amplifier without passing through the SMPS. This architecture allows the use of a smaller SMPS, and eliminates SMPS-generated noise to the amplifier when the amplifier is least able to tolerate such noise, namely, under high power conditions.

公开(公告)号：EP1442520A1

公开(公告)日：2004-08-04

申请号：EP02778684.7

申请日：2002-10-29

Applicant: Qualcomm Incorporated

Inventor： KLAREN, Jonathan ,  PERSICO, Charles, J. ,  WALTER, Scott ,  CHAN, Paul, L.

IPC: H03F3/72 ,  H03F3/60

CPC classification number: H03F3/602 ,  H03F3/72 ,  H03F2200/198

Abstract: A balanced power amplifier circuit arrangement comprises a driver amplifier stage (22) adapted to receive and amplify a signal. The amplified signal is input to a first coupler (26). The first coupler (26) produces an in-phase signal and an out-of-phase quadrature signal. A first power amplifier (38) receives and amplifies the in-phase signal. A second power amplifier (40) receives and amplifies the out-of-phase signal. A first switch (28) alternately connects an isolated port of the first coupler to ground (32) or a bypass path (36). A second coupler (42) receives and combines the amplified in-phase signal and the amplified out-of-phase signal to produce a combined signal. A second switch (30) alternately connects an isolated port of the second coupler (42) to either ground (34) or the bypass path (36). When the power amplifiers (38, 40) are powered down, the first coupler (26) splits the RF-signal into an in-phase signal and an out-of-phase signal. The power amplifiers (38, 40) appear as reflective impedances to the signal when they are powered down. Each signal reflects off the first and second power amplifiers (38, 40), respectively. The first coupler (26) combines the reflected signals and routes the combined signal through the bypass path (36) to the second coupler (42). The second coupler (42) splits the signal into an in-phase and out-of-phase signal and routes each to the power amplifiers (38, 40). The power amplifiers (38, 40) reflect each signal back to the second coupler (42). The second coupler (42) combines the signals and routes the combined signal to the RF-output port. The circuit arrangement enables the integration of the balanced amplifier and first and second couplers (26, 42) into a single power amplifier package to provide low power bypassing without the need of an external circulator component.

公开(公告)号：EP1442520B1

公开(公告)日：2010-07-21

申请号：EP02778684.7

申请日：2002-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： KLAREN, Jonathan ,  PERSICO, Charles, J. ,  WALTER, Scott ,  CHAN, Paul, L.

IPC: H03F3/72 ,  H03F3/60

CPC classification number: H03F3/602 ,  H03F3/72 ,  H03F2200/198