公开(公告)号：US08896375B2

公开(公告)日：2014-11-25

申请号：US13735395

申请日：2013-01-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： ChulSoon Park ,  HyukSu Son ,  WooYoung Kim ,  JooYoung Jang ,  HaeJin Lee

IPC: H03G3/20 ,  H03F3/16 ,  G06F17/50 ,  H03F1/02

CPC classification number: H03F3/16 ,  G06F17/5072 ,  H03F1/0227

Abstract: Provided is a hybrid envelope amplifier having improved efficiency, and more particularly, to an envelope amplifier using a dual switching amplifier and having improved efficiency in which power consumption is reduced by controlling a switching current of a switching region according to a magnitude of an envelope input signal, thereby improving efficiency compared to a conventional hybrid envelope amplifier. The envelope amplifier using a dual switching amplifier and having improved efficiency comprises a linear amplifier and a switching amplifier, wherein the switching amplifier includes two or more switching stages that are selectively operated according to a magnitude of an input signal.

Abstract translation: 提供了一种具有改进的效率的混合包络放大器，更具体地，涉及使用双开关放大器的包络放大器，并且通过根据包络输入的幅度控制开关区域的开关电流，并且具有提高的功率消耗的效率 信号，从而提高了与常规混合包络放大器相比的效率。 使用双开关放大器并且具有改进的效率的包络放大器包括线性放大器和开关放大器，其中开关放大器包括根据输入信号的幅度选择性地操作的两个或更多个开关级。