VRAMP LIMITING USING RESISTORS
    2.
    发明申请
    VRAMP LIMITING USING RESISTORS 有权
    使用电阻的VRAMP限制

    公开(公告)号:US20130307621A1

    公开(公告)日:2013-11-21

    申请号:US13950768

    申请日:2013-07-25

    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。

    Switchable vramp limiter
    5.
    发明授权
    Switchable vramp limiter 有权
    可切换vramp限制器

    公开(公告)号:US08750812B2

    公开(公告)日:2014-06-10

    申请号:US13961088

    申请日:2013-08-07

    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。

    SWITCHABLE VRAMP LIMITER
    6.
    发明申请

    公开(公告)号:US20130321077A1

    公开(公告)日:2013-12-05

    申请号:US13961088

    申请日:2013-08-07

    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。

    VRAMP limiting using resistors
    9.
    发明授权
    VRAMP limiting using resistors 有权
    VRAMP限制使用电阻

    公开(公告)号:US08884703B2

    公开(公告)日:2014-11-11

    申请号:US13950768

    申请日:2013-07-25

    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。

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