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    • 3. 发明申请
    • SPLIT VCC AND COMMON VCC POWER MANAGEMENT ARCHITECTURE FOR ENVELOPE TRACKING
    • 分离VCC和通用VCC电源管理架构进行包络跟踪
    • WO2013033700A1
    • 2013-03-07
    • PCT/US2012/053654
    • 2012-09-04
    • RF MICRO DEVICES, INC.
    • KHLAT, NadimKAY, Michael R.GORISSE, Philippe
    • H03F1/32H03F1/02H03F3/195H03F3/24H04B17/00H03G3/00H03G3/30
    • H03G1/00H03F1/0227
    • An envelope tracking power supply and transmitter control circuitry are disclosed. The transmitter control circuitry receives a first envelope power supply control signal and a second envelope power supply control signal. The envelope tracking power supply operates in one of a group of operating modes, which includes a first operating mode and a second operating mode. During both the first operating mode and the second operating mode, a first envelope power supply signal is provided to a driver stage based on the first envelope power supply control signal. During the first operating mode, a second envelope power supply signal is provided to a final stage based on the first envelope power supply control signal. However, during the second operating mode, the second envelope power supply signal is provided to the final stage based on the second envelope power supply control signal.
    • 公开了一种包络跟踪电源和发射机控制电路。 发射机控制电路接收第一包络电源控制信号和第二包络电源控制信号。 信封跟踪电源以包括第一操作模式和第二操作模式的一组操作模式中的一种操作。 在第一操作模式和第二操作模式期间,基于第一包络电源控制信号将第一包络电源信号提供给驱动器级。 在第一操作模式期间,第二包络电源信号基于第一包络电源控制信号提供到最后级。 然而,在第二操作模式期间,第二包络电源信号基于第二包络电源控制信号提供到最后级。
    • 4. 发明申请
    • PSEUDO-ENVELOPE FOLLOWER POWER MANAGEMENT SYSTEM WITH HIGH FREQUENCY RIPPLE CURRENT COMPENSATION
    • 具有高频纹波电流补偿的PSEUDO-ENVELOPE FOLLOWER电源管理系统
    • WO2012079031A1
    • 2012-06-14
    • PCT/US2011/064255
    • 2011-12-09
    • RF MICRO DEVICES, INC.
    • KHLAT, NadimKAY, Michael, R.GORISSE, Philippe
    • H03F3/217
    • H03F1/0227H03F3/217
    • 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.
    • 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。