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    • 3. 发明授权
    • Power amplifier system with power control function
    • 功率放大器系统具有电源控制功能
    • US08008974B2
    • 2011-08-30
    • US12618111
    • 2009-11-13
    • Sang Hoon HaSang Hee KimJoong Jin NamKi Joong KimJae Hyouck ChoiShinichi IlzukaYoun Suk Kim
    • Sang Hoon HaSang Hee KimJoong Jin NamKi Joong KimJae Hyouck ChoiShinichi IlzukaYoun Suk Kim
    • H03G3/30
    • H03F1/0261H03F3/193H03F3/245H03F2200/15H03F2200/78
    • A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time. A power amplifier system with power control function according to an aspect of the invention may include: a power amplifier receiving a bias voltage and a bias current from a power voltage source and having a gain controlled according to the magnitude of the bias voltage and the bias current; a voltage detection controller detecting the magnitude of the bias voltage being supplied to the power amplifier and comparing the magnitude of the bias voltage with a predetermined reference voltage to control the magnitude of the bias voltage; and a current detection controller detecting voltage having a magnitude equivalent to the magnitude of the bias current being supplied to the power amplifier and comparing the magnitude of the voltage equivalent to the magnitude of the bias current with the reference voltage to control the magnitude of the bias current.
    • 具有功率控制功能的功率放大器系统通过同时控制功率放大器的偏置电压和偏置电流来提供精确和高效的功率控制。 具有根据本发明的一个方面的具有功率控制功能的功率放大器系统可以包括:功率放大器,其从电源电压源接收偏置电压和偏置电流,并且具有根据偏置电压和偏置的幅度控制的增益 当前; 电压检测控制器检测提供给功率放大器的偏置电压的大小,并将偏置电压的大小与预定的参考电压进行比较,以控制偏置电压的大小; 以及电流检测控制器,检测具有等于提供给功率放大器的偏置电流的幅度的电压的电压,并将与偏置电流的大小等效的电压的大小与参考电压进行比较,以控制偏置的幅度 当前。
    • 4. 发明申请
    • POWER AMPLIFIER SYSTEM WITH POWER CONTROL FUNCTION
    • 功率放大器系统功率控制功能
    • US20100156539A1
    • 2010-06-24
    • US12618111
    • 2009-11-13
    • Sang Hoon HaSang Hee KimJoong Jin NamKi Joong KimJae Hyouck ChoiShinichi IlzukaYoun Suk Kim
    • Sang Hoon HaSang Hee KimJoong Jin NamKi Joong KimJae Hyouck ChoiShinichi IlzukaYoun Suk Kim
    • H03G3/30H03G3/00
    • H03F1/0261H03F3/193H03F3/245H03F2200/15H03F2200/78
    • A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time. A power amplifier system with power control function according to an aspect of the invention may include: a power amplifier receiving a bias voltage and a bias current from a power voltage source and having a gain controlled according to the magnitude of the bias voltage and the bias current; a voltage detection controller detecting the magnitude of the bias voltage being supplied to the power amplifier and comparing the magnitude of the bias voltage with a predetermined reference voltage to control the magnitude of the bias voltage; and a current detection controller detecting voltage having a magnitude equivalent to the magnitude of the bias current being supplied to the power amplifier and comparing the magnitude of the voltage equivalent to the magnitude of the bias current with the reference voltage to control the magnitude of the bias current.
    • 具有功率控制功能的功率放大器系统通过同时控制功率放大器的偏置电压和偏置电流来提供精确和高效的功率控制。 具有根据本发明的一个方面的具有功率控制功能的功率放大器系统可以包括:功率放大器,其从电源电压源接收偏置电压和偏置电流,并且具有根据偏置电压和偏置的幅度控制的增益 当前; 电压检测控制器检测提供给功率放大器的偏置电压的大小,并将偏置电压的大小与预定的参考电压进行比较,以控制偏置电压的大小; 以及电流检测控制器,检测具有等于提供给功率放大器的偏置电流的幅度的电压的电压,并将与偏置电流的大小等效的电压的大小与参考电压进行比较,以控制偏置的幅度 当前。
    • 7. 发明授权
    • Multi-stage CMOS power amplifier
    • 多级CMOS功率放大器
    • US08022762B2
    • 2011-09-20
    • US12823420
    • 2010-06-25
    • Youn Suk KimHyo Gun BaeJoong Jin NamJun Goo WonKi Joong Kim
    • Youn Suk KimHyo Gun BaeJoong Jin NamJun Goo WonKi Joong Kim
    • H03F1/00
    • H03F3/45179H03F1/3205H03F3/193H03F3/245H03F3/3022H03F2200/411H03F2200/516H03F2200/534H03F2200/537H03F2200/541
    • There is provided a multi-stage CMOS power amplifier including: a driver amplifier having differential output terminals, inverting differential signals input through first and second input terminals and outputting the respective inverted signals through the differential output terminals; a transformer for power matching having a primary coil connected between the differential output terminals of the driver amplifier and a secondary coil coupled with the primary coil using electromagnetic induction, having a predetermined turns ratio to the primary coil, and connected to a direct current (DC) tuning voltage terminal; and a power amplifier power-amplifying differential signals passing through one end and the other end of the secondary coil of the transformer and outputting the respective power-amplified differential signals through first and second output terminals.
    • 提供了一种多级CMOS功率放大器,包括:具有差分输出端的驱动放大器,通过第一和第二输入端输入的差分信号反相,并通过差分输出端输出各反相信号; 一种用于功率匹配的变压器,其具有连接在所述驱动放大器的差分输出端子之间的初级线圈和使用电磁感应耦合到所述初级线圈的次级线圈,所述次级线圈具有与所述初级线圈的预定匝数比,并且连接到直流 )调谐电压端子; 以及功率放大器功率放大差分信号,其通过变压器的次级线圈的一端和另一端,并通过第一和第二输出端输出相应的功率放大差分信号。