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    • 7. 发明申请
    • POWER CONTROL SYSTEM AND POWER AMPLIFICATION SYSTEM USING THE SAME
    • 功率控制系统和功率放大系统
    • US20110193545A1
    • 2011-08-11
    • US12940155
    • 2010-11-05
    • Sang Hoon HAShinichi IIZUKAYoun Suk KIMChul Hwan YOONJun Kyung NA
    • Sang Hoon HAShinichi IIZUKAYoun Suk KIMChul Hwan YOONJun Kyung NA
    • G05F3/16
    • H03F1/0211H03F2200/78
    • There is provided a power control system. A power control system may include: a power regulator having a plurality of power PMOS transistors connected to a power source in parallel with each other; a current sensing unit connected to the power source and sensing currents flowing through a plurality of target PMOS transistors located at predetermined positions; a current mirror unit connected to a first regulated voltage terminal and generating a plurality of currents equal to the currents sensed by the current sensing unit; a comparator unit totaling the plurality of currents generated by the current mirror unit to convert the totaled currents into a voltage, and generating a voltage difference between the voltage and a predetermined reference voltage; and a current bias circuit unit controlling a bias current according to the voltage difference from the comparator unit.There is provided a power amplification system including the power control system.
    • 提供了电源控制系统。 功率控制系统可以包括:功率调节器,具有彼此并联连接到电源的多个功率PMOS晶体管; 连接到电源并感测流过位于预定位置的多个目标PMOS晶体管的电流的电流感测单元; 连接到第一调节电压端子并产生等于由电流感测单元感测的电流的多个电流的电流镜单元; 比较器单元,其将由电流镜单元产生的多个电流合并,以将总电流转换为电压,并产生电压与预定参考电压之间的电压差; 以及电流偏置电路单元,根据与比较器单元的电压差来控制偏置电流。 提供了包括功率控制系统的功率放大系统。