公开(公告)号：US08653891B2

公开(公告)日：2014-02-18

申请号：US13960950

申请日：2013-08-07

Applicant: RF Micro Devices, Inc.

Inventor： Lars Sandahl Ubbesen ,  Erik Pedersen ,  Søren Deleuran Laursen

IPC: H03G9/00

CPC classification number: H03G3/004 ,  H03G3/3047

Abstract: Embodiments of power amplification devices are described that include a power amplification circuit, a first voltage regulation circuit, and a second voltage regulation circuit. The voltage regulation circuits are configured to provide regulated voltages to the power amplification circuit. The power amplification device also includes a threshold detection circuit to get better maximum output power performance while preserving power efficiency. The threshold detection circuit is configured to increase a voltage adjustment gain of the first voltage regulation circuit when a regulated voltage level of regulated voltage from the second voltage regulation circuit reaches a threshold voltage level. In this manner, the voltage adjustment gain can be increased when the second voltage regulation circuit is close to or has railed. Increasing the voltage adjustment gain when the second voltage regulation circuit is railing or is close to railing improves the power performance and the power efficiency of the power amplification circuit.

Abstract translation: 描述了功率放大装置的实施例，其包括功率放大电路，第一电压调节电路和第二电压调节电路。 电压调节电路被配置为向功率放大电路提供调节电压。 功率放大装置还包括阈值检测电路，以在保持功率效率的同时获得更好的最大输出功率性能。 阈值检测电路被配置为当来自第二电压调节电路的调节电压的调节电压电平达到阈值电压电平时，增加第一电压调节电路的电压调节增益。 以这种方式，当第二电压调节电路接近或有轨时，可以增加电压调节增益。 当第二电压调节电路处于栏杆状态或靠近栏杆时增加电压调节增益可提高功率放大电路的功率性能和功率效率。

公开(公告)号：US20130314153A1

公开(公告)日：2013-11-28

申请号：US13960950

申请日：2013-08-07

Applicant: RF Micro Devices, Inc.

Inventor： Lars Sandahl Ubbesen ,  Erik Pedersen ,  Søren Deleuran Laursen

IPC: H03G3/00

CPC classification number: H03G3/004 ,  H03G3/3047

Abstract: Embodiments of power amplification devices are described that include a power amplification circuit, a first voltage regulation circuit, and a second voltage regulation circuit. The voltage regulation circuits are configured to provide regulated voltages to the power amplification circuit. The power amplification device also includes a threshold detection circuit to get better maximum output power performance while preserving power efficiency. The threshold detection circuit is configured to increase a voltage adjustment gain of the first voltage regulation circuit when a regulated voltage level of regulated voltage from the second voltage regulation circuit reaches a threshold voltage level. In this manner, the voltage adjustment gain can be increased when the second voltage regulation circuit is close to or has railed. Increasing the voltage adjustment gain when the second voltage regulation circuit is railing or is close to railing improves the power performance and the power efficiency of the power amplification circuit.

Abstract translation: 描述了功率放大装置的实施例，其包括功率放大电路，第一电压调节电路和第二电压调节电路。 电压调节电路被配置为向功率放大电路提供调节电压。 功率放大装置还包括阈值检测电路，以在保持功率效率的同时获得更好的最大输出功率性能。 阈值检测电路被配置为当来自第二电压调节电路的调节电压的调节电压电平达到阈值电压电平时，增加第一电压调节电路的电压调节增益。 以这种方式，当第二电压调节电路接近或有轨时，可以增加电压调节增益。 当第二电压调节电路处于栏杆状态或靠近栏杆时增加电压调节增益可提高功率放大电路的功率性能和功率效率。

公开(公告)号：US20130307621A1

公开(公告)日：2013-11-21

申请号：US13950768

申请日：2013-07-25

Applicant: RF Micro Devices, Inc.

Inventor： Jean-Christophe Berchtold ,  Erik Pedersen

IPC: H03F3/45

CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/447 ,  H03F2200/504 ,  H03F2200/555

Abstract: Power amplification devices are described, which are configured to amplify a radio frequency (RF) transmission signal. The power amplification device includes a voltage regulation circuit and a power amplification circuit. The voltage regulation circuit is configured to generate a regulated voltage for the power amplification device from a supply voltage and to adjust a regulated voltage level of the regulated voltage in accordance with a voltage adjustment gain. The voltage adjustment gain of the voltage regulation circuit is set by a feedback resistance. To help prevent the voltage regulation circuit from saturating, the voltage regulation circuit adjusts the feedback resistance to reduce the voltage regulation gain.

Abstract translation: 描述了功率放大装置，其被配置为放大射频（RF）传输信号。 功率放大装置包括电压调节电路和功率放大电路。 电压调节电路被配置为从电源电压产生用于功率放大装置的调节电压，并且根据电压调节增益来调节调节电压的调节电压电平。 电压调节电路的电压调节增益由反馈电阻设定。 为了防止电压调节电路饱和，电压调节电路调整反馈电阻以降低调压增益。

公开(公告)号：US08750812B2

公开(公告)日：2014-06-10

申请号：US13961088

申请日：2013-08-07

Applicant: RF Micro Devices, Inc.

Inventor： Erik Pedersen ,  Søren Deleuran Laursen ,  Jean-Christophe Berchtold

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/447 ,  H03F2200/504 ,  H03F2200/555

Abstract: A power amplification device is disclosed that includes a power amplification circuit operable to amplify a radio frequency (RF) signal in accordance with an amplification gain, and a voltage regulation circuit operable to generate a regulated voltage. A regulated voltage level of the regulated voltage sets the amplification gain. To help prevent the voltage regulation circuit from saturating, the voltage regulation circuit is configured to reduce a voltage adjustment gain when the regulated voltage level reaches a threshold voltage level. In one embodiment, the threshold voltage level is set to be higher when a band-select signal indicates that the RF signal is being transmitted within a first frequency band, and is set to be lower when the band-select signal indicates that the RF signal is being transmitted within a second frequency band. The spectral performance of the power amplification device thus improves with regard to the second frequency band.

Abstract translation: 公开了一种功率放大装置，其包括功率放大电路，其可操作以根据放大增益放大射频（RF）信号，以及电压调节电路，其可操作以产生调节电压。 调节电压的稳定电压设置放大增益。 为了防止电压调节电路饱和，调压电路被配置为当调节电压电平达到阈值电压电平时降低电压调节增益。 在一个实施例中，当频带选择信号指示RF信号在第一频带内传输时，将阈值电压电平设置得较高，并且当频带选择信号指示RF信号 在第二频带内传输。 因此功率放大装置的光谱性能相对于第二频带而改善。

公开(公告)号：US20130321077A1

公开(公告)日：2013-12-05

申请号：US13961088

申请日：2013-08-07

Applicant: RF Micro Devices, Inc.

Inventor： Erik Pedersen ,  Søren Deleuran Laursen ,  Jean-Christophe Berchtold

IPC: H03G3/00

CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/447 ,  H03F2200/504 ,  H03F2200/555

Abstract: A power amplification device is disclosed that includes a power amplification circuit operable to amplify a radio frequency (RF) signal in accordance with an amplification gain, and a voltage regulation circuit operable to generate a regulated voltage. A regulated voltage level of the regulated voltage sets the amplification gain. To help prevent the voltage regulation circuit from saturating, the voltage regulation circuit is configured to reduce a voltage adjustment gain when the regulated voltage level reaches a threshold voltage level. In one embodiment, the threshold voltage level is set to be higher when a band-select signal indicates that the RF signal is being transmitted within a first frequency band, and is set to be lower when the band-select signal indicates that the RF signal is being transmitted within a second frequency band. The spectral performance of the power amplification device thus improves with regard to the second frequency band.

Abstract translation: 公开了一种功率放大装置，其包括功率放大电路，其可操作以根据放大增益放大射频（RF）信号，以及电压调节电路，其可操作以产生调节电压。 调节电压的稳定电压设置放大增益。 为了防止电压调节电路饱和，调压电路被配置为当调节电压电平达到阈值电压电平时降低电压调节增益。 在一个实施例中，当频带选择信号指示RF信号在第一频带内传输时，将阈值电压电平设置得较高，并且当频带选择信号指示RF信号 在第二频带内传输。 因此功率放大装置的光谱性能相对于第二频带而改善。

公开(公告)号：US08884703B2

公开(公告)日：2014-11-11

申请号：US13950768

申请日：2013-07-25

Applicant: RF Micro Devices, Inc.

Inventor： Jean-Christophe Berchtold ,  Erik Pedersen

IPC: H03F3/04 ,  H03F3/24 ,  H03F3/45 ,  H03G3/00 ,  H03F3/195 ,  H03F1/02

CPC classification number: H03G3/004 ,  H03F1/0238 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45179 ,  H03F2200/447 ,  H03F2200/504 ,  H03F2200/555

Abstract: Power amplification devices are described, which are configured to amplify a radio frequency (RF) transmission signal. The power amplification device includes a voltage regulation circuit and a power amplification circuit. The voltage regulation circuit is configured to generate a regulated voltage for the power amplification device from a supply voltage and to adjust a regulated voltage level of the regulated voltage in accordance with a voltage adjustment gain. The voltage adjustment gain of the voltage regulation circuit is set by a feedback resistance. To help prevent the voltage regulation circuit from saturating, the voltage regulation circuit adjusts the feedback resistance to reduce the voltage regulation gain.

Abstract translation: 描述了功率放大装置，其被配置为放大射频（RF）传输信号。 功率放大装置包括电压调节电路和功率放大电路。 电压调节电路被配置为从电源电压产生用于功率放大装置的调节电压，并且根据电压调节增益来调节调节电压的调节电压电平。 电压调节电路的电压调节增益由反馈电阻设定。 为了防止电压调节电路饱和，电压调节电路调整反馈电阻以降低调压增益。