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    • 2. 发明申请
    • POWER AMPLIFYING APPARATUS WITH DUAL-CURRENT CONTROL MODE
    • 具有双电流控制模式的功率放大器
    • US20130076445A1
    • 2013-03-28
    • US13324286
    • 2011-12-13
    • Youn Suk KIMJun Kyung NASang Hoon HAShinichi IIZUKA
    • Youn Suk KIMJun Kyung NASang Hoon HAShinichi IIZUKA
    • H03F3/04
    • H03F1/0272H03F3/195H03F2200/91
    • There is provided a power amplifying apparatus with dual-current control mode, including: a transistor mirror circuit adjusting currents respectively flowing through a main path and a mirror path connected in parallel to a power source terminal; a resistor mirror circuit adjusting the respective currents of the main path and the mirror path; a current controlling unit controlling a control current flowing through the main path with a pre-set constant current; a voltage adjusting unit providing a bias adjustment signal that corresponds to a difference voltage between a first voltage of a first node on the main path to which a current is output from the resistor mirror circuit and a second voltage of a second node on the mirror path to which a current is output from the resistor mirror circuit; and a bias circuit unit adjusting a bias of a power amplifying unit.
    • 提供一种具有双电流控制模式的功率放大装置,包括:晶体管反射镜电路,其调节分别流过与电源端子并联连接的主路径和反射镜路径的电流; 电阻镜电路,调整主路径和反射镜路径的各自的电流; 电流控制单元,用预定的恒定电流控制流经主路径的控制电流; 电压调节单元,其提供偏置调整信号,该偏置调整信号对应于电流从电阻镜电路输出的主路径上的第一节点的第一电压与反射镜路径上的第二节点的第二电压之间的差电压 从电阻镜电路输出电流; 以及调整功率放大单元的偏置的偏置电路单元。
    • 4. 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。