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    • 4. 发明授权
    • 스택 구조를 가지는 전력 증폭기
    • 具有堆叠结构的功率放大器
    • KR101338015B1
    • 2013-12-09
    • KR1020120082535
    • 2012-07-27
    • 숭실대학교산학협력단
    • 황호용박창근
    • H03F1/22H03F3/20
    • H03F3/211H03F1/0283H03F3/195H03F3/213H03F3/245H03F3/3022H03F3/3028H03F3/45179H03F3/45237H03F2200/405H03F2200/408H03F2200/516H03F2203/45481H03F2203/45544H03F2203/45594H03F2203/45631
    • The present invention relates to a power amplifier which has a stack structure. The power amplifier includes: a first driving amplifier stage in which a power supply voltage is applied from a power source and which receives and amplifies an input signal; a second driving amplifier stage in which a virtual grounding voltage is applied by being connected to the grounding stage of the first driving amplifier stage at a power input stage and which receives and amplifies the output signal of the first driving amplifier stage by being connected to the output stage of the first driving amplifier stage at the input stage; and power amplifier stage in which the power supply voltage is applied from the power source and which receives and amplifies the output signal of the second driving amplifier stage by being connected to the output stage of the second driving amplifier stage at the input stage. According to the forementioned, the power amplifier is able to reduce the number of regulators which supply the power supply voltage and also reduce the designed area of an integrated circuit by connecting multiple driving amplifier stages which comprise a multi-stage amplifier in the stack structure. [Reference numerals] (AA) Input;(BB) Output
    • 本发明涉及具有堆叠结构的功率放大器。 功率放大器包括:第一驱动放大器级,其中从电源施加电源电压并且其接收和放大输入信号; 第二驱动放大级,其中通过在功率输入级连接到第一驱动放大器级的接地级并且通过连接到第一驱动放大器级的输出信号来接收和放大第一驱动放大器级的输出信号来施加虚拟接地电压 在输入级的第一驱动放大器级的输出级; 以及功率放大级,其中从电源施加电源电压,并且通过在输入级连接到第二驱动放大器级的输出级来接收和放大第二驱动放大器级的输出信号。 根据前述,功率放大器能够减少提供电源电压的调节器的数量,并且还通过在堆叠结构中连接包括多级放大器的多个驱动放大器级来减小集成电路的设计面积。 (标号)(AA)输入;(BB)输出