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    • 52. 发明授权
    • High efficiency amplification
    • 高效放大
    • US08749308B2
    • 2014-06-10
    • US13460111
    • 2012-04-30
    • Martin Paul Wilson
    • Martin Paul Wilson
    • H03F1/00
    • H03F1/0222H03F1/00H03F1/02H03F1/025H03F3/189H03F3/19H03F3/21H03F3/245H03F2200/102H03F2200/331H03F2200/451H03F2200/504H03F2200/511
    • A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.
    • 一种射频放大级,包括:放大器,用于接收待放大的输入信号和电源电压; 以及用于提供所述电源电压的电源电压级,包括:用于提供表示所述输入信号的包络的参考信号的装置; 用于根据参考信号选择多个电源电压电平中的一个的装置; 以及用于产生经调整的所选择的电源电压的装置,包括用于放大参考信号与所选择的电源电压电平或所调整的所选电源电压电平之一之间的差的交流放大器,以及用于将所放大的差与所选择的电源电压相加的加法器 供给电压,从而生成调整后的电源电压。
    • 53. 发明申请
    • RF POWER AMPLIFIER AND OPERATING METHOD THEREOF
    • 射频功率放大器及其工作方法
    • US20130154735A1
    • 2013-06-20
    • US13705328
    • 2012-12-05
    • RENESAS ELECTRONICS CORPORATION
    • Masatoshi HASE
    • H03F1/00
    • H03F3/193H03F1/00H03F3/191H03F3/24H03F3/245H03F3/60H03F3/66H03F2200/111H03F2200/204H03F2200/387H03F2200/451H03F2200/465H04B2001/0408
    • The present invention reduces the size of a power detection circuit. An RF power amplifier includes an RF amplifier circuit and a power detection circuit. The RF amplifier circuit subjects an RF input signal having a predetermined frequency band to power amplification and generates an RF amplifier output signal. The input terminal of the power detection circuit is coupled to the output of the RF amplifier circuit. The power detection circuit detects a harmonic component having a harmonic frequency that is a whole number multiple of the frequency of a fundamental wave component of the RF amplifier output signal, and generates at an output terminal a detected signal indicative of the signal level of the fundamental wave component of the RF amplifier output signal. The power detection circuit includes an input circuit, which detects the harmonic component, and an output circuit, which generates the detected signal at the output.
    • 本发明减小功率检测电路的尺寸。 RF功率放大器包括RF放大器电路和功率检测电路。 RF放大器电路对具有预定频带的RF输入信号进行功率放大并产生RF放大器输出信号。 功率检测电路的输入端耦合到RF放大器电路的输出端。 功率检测电路检测具有作为RF放大器输出信号的基波分量的频率的整数倍的谐波频率的谐波分量,并且在输出端产生表示基波的信号电平的检测信号 波分量的RF放大器输出信号。 功率检测电路包括检测谐波分量的输入电路和在输出端产生检测信号的输出电路。
    • 55. 发明授权
    • High efficiency amplification
    • 高效放大
    • US07482869B2
    • 2009-01-27
    • US11161854
    • 2005-08-19
    • Martin Paul Wilson
    • Martin Paul Wilson
    • H03F1/00
    • H03F1/0222H03F1/00H03F1/02H03F1/025H03F3/189H03F3/19H03F3/21H03F3/245H03F2200/102H03F2200/331H03F2200/451H03F2200/504H03F2200/511
    • A radio frequency amplification stage including an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, including a circuit for providing a reference signal representing the envelope of the input signal; a circuit for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and a circuit for generating an adjusted selected power supply voltage, including an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.
    • 一种射频放大级,包括用于接收待放大的输入信号的放大器和电源电压; 以及用于提供所述电源电压的电源电压级,包括用于提供表示输入信号的包络的参考信号的电路; 用于根据参考信号选择多个电源电压电平之一的电路; 以及用于产生经调整的所选择的电源电压的电路,包括用于放大参考信号与所选择的电源电压电平或调整的所选电源电压电平之一之间的差的ac放大器,以及用于将放大的差值与 从而产生调整后的电源电压。