MODIFIED SWITCHING RIPPLE FOR ENVELOPE TRACKING SYSTEM
    3.
    发明申请
    MODIFIED SWITCHING RIPPLE FOR ENVELOPE TRACKING SYSTEM 审中-公开
    改进的开关跟踪系统

    公开(公告)号:WO2013012787A2

    公开(公告)日:2013-01-24

    申请号:PCT/US2012/046887

    申请日:2012-07-16

    CPC classification number: H04B1/0475 H03F1/0227 H03F1/305

    Abstract: Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.

    Abstract translation: 公开了包括RF功率放大器(PA)和包络跟踪电源的射频(RF)发射机电路。 RF PA接收并放大RF输入信号,以使用包络电源信号提供RF发射信号。 信封跟踪电源提供具有开关纹波的信封电源信号。 此外,包络跟踪电源以正常开关纹波模式或修改的开关纹波模式工作,使得在正常开关纹波模式期间,包络电源信号具有正常的开关纹波,并且在修改的开关纹波模式期间, 信号电源信号改变了开关纹波。 当需要修改的开关纹波时,包络跟踪电源以修改的开关纹波模式运行。

    PSEUDO-ENVELOPE FOLLOWER POWER MANAGEMENT SYSTEM WITH HIGH FREQUENCY RIPPLE CURRENT COMPENSATION
    4.
    发明申请
    PSEUDO-ENVELOPE FOLLOWER POWER MANAGEMENT SYSTEM WITH HIGH FREQUENCY RIPPLE CURRENT COMPENSATION 审中-公开
    具有高频纹波电流补偿的PSEUDO-ENVELOPE FOLLOWER电源管理系统

    公开(公告)号:WO2012079031A1

    公开(公告)日:2012-06-14

    申请号:PCT/US2011/064255

    申请日:2011-12-09

    CPC classification number: H03F1/0227 H03F3/217

    Abstract: Embodiments disclosed in the detailed description relate to a pseudo-envelope follower power management system including a parallel amplifier and a switch mode power supply converter cooperatively coupled to generate a power supply voltage at a power supply output coupled to a linear RF power amplifier. The parallel amplifier output is in communication with the power amplifier supply output. The parallel amplifier governs operation of the switch mode power supply converter and regulates the power amplifier supply voltage base on a V RAMP signal. The parallel amplifier circuit includes an open loop high frequency compensation assist circuit that generates a high frequency ripple compensation current based on an estimate of the high frequency ripple currents contained in a ripple current of the power inductor. The high frequency ripple compensation current is injected into the parallel amplifier circuit output to cancel out high frequency ripple currents at the power amplifier supply output.

    Abstract translation: 在详细描述中公开的实施例涉及一种伪包络跟随器功率管理系统,其包括协同耦合以在耦合到线性RF功率放大器的电源输出处产生电源电压的并联放大器和开关模式电源转换器。 并联放大器输出与功率放大器电源输出通信。 并联放大器控制开关模式电源转换器的工作,并根据VRAMP信号调节功率放大器电源电压。 并联放大器电路包括开环高频补偿辅助电路,其基于包含在功率电感器的纹波电流中的高频纹波电流的估计来产生高频纹波补偿电流。 高频纹波补偿电流注入到并行放大器电路输出端,以消除功率放大器电源输出端的高频纹波电流。

    PSEUDO-ENVELOPE FOLLOWER POWER MANAGEMENT SYSTEM WITH HIGH FREQUENCY RIPPLE CURRENT COMPENSATION
    6.
    发明公开
    PSEUDO-ENVELOPE FOLLOWER POWER MANAGEMENT SYSTEM WITH HIGH FREQUENCY RIPPLE CURRENT COMPENSATION 有权
    高频混频功补偿理想跟踪准,OHÜLLKURVENVERFOLGER绩效管理体系

    公开(公告)号:EP2649724A1

    公开(公告)日:2013-10-16

    申请号:EP11815602.5

    申请日:2011-12-09

    CPC classification number: H03F1/0227 H03F3/217

    Abstract: Embodiments disclosed in the detailed description relate to a pseudo-envelope follower power management system including a parallel amplifier and a switch mode power supply converter cooperatively coupled to generate a power supply voltage at a power supply output coupled to a linear RF power amplifier. The parallel amplifier output is in communication with the power amplifier supply output. The parallel amplifier governs operation of the switch mode power supply converter and regulates the power amplifier supply voltage base on a V
    RAMP signal. The parallel amplifier circuit includes an open loop high frequency compensation assist circuit that generates a high frequency ripple compensation current based on an estimate of the high frequency ripple currents contained in a ripple current of the power inductor. The high frequency ripple compensation current is injected into the parallel amplifier circuit output to cancel out high frequency ripple currents at the power amplifier supply output.

    POWER MANAGENT SYSTEM FOR PSEUDO-ENVELOPE AND AVERAGE POWER TRACKING
    9.
    发明公开
    POWER MANAGENT SYSTEM FOR PSEUDO-ENVELOPE AND AVERAGE POWER TRACKING 审中-公开
    绩效管理体系FORPSEUDOHÜLLKURVEN-和平均业绩跟踪

    公开(公告)号:EP2705604A2

    公开(公告)日:2014-03-12

    申请号:EP12725911.7

    申请日:2012-05-07

    Abstract: A pseudo-envelope tracking modulated power supply system, which is used to provide a power amplifier supply voltage to a radio frequency power amplifier, is disclosed. In a first embodiment, during a high power modulation mode and a medium power modulation mode, the power amplifier supply voltage provides envelope tracking. During a low power average power tracking mode, the power amplifier supply voltage provides average power tracking. In a second embodiment, an output power from the radio frequency power amplifier is regulated based on a difference between a target output power from the radio frequency power amplifier and a measured output power from the radio frequency power amplifier. The power amplifier supply voltage provides power for amplification, based on the difference between the target output power and the measured output power.

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