公开(公告)号：US20130093511A1

公开(公告)日：2013-04-18

申请号：US13651756

申请日：2012-10-15

Applicant: Samsung Electronics Co. Ltd.

Inventor： Sang-Hyun BAEK ,  Jae-Hyuk LEE ,  Hyung-Sun LIM ,  Sung-Youl CHOI

IPC: H03F3/68

CPC classification number: H03F3/72 ,  H03F1/0227 ,  H03F1/0277 ,  H03F1/0288 ,  H03F3/24 ,  H03F3/602 ,  H03F2200/432 ,  H03F2203/7215

Abstract: An apparatus and method for enhancing the whole efficiency of power amplification in a supply modulated amplifier are provided. The power amplification apparatus includes a controller, a Doherty power amplifier, and a supply modulated amplifier. The controller selects a power amplifier among the Doherty power amplifier and the supply modulated amplifier. The Doherty power amplifier amplifies a power of a transmission signal when the Doherty power amplifier is selected by the controller. The supply modulated amplifier amplifies the power of the transmission signal using a supply voltage determined considering the amplitude of the transmission signal, when the supply modulated amplifier is selected by the controller.

Abstract translation: 提供了一种用于提高供应调制放大器中的功率放大的整体效率的装置和方法。 功率放大装置包括控制器，Doherty功率放大器和电源调制放大器。 控制器选择Doherty功率放大器和电源调制放大器之间的功率放大器。 当Doherty功率放大器由控制器选择时，Doherty功率放大器放大传输信号的功率。 当由控制器选择供电调制放大器时，供应调制放大器使用考虑到传输信号的幅度确定的电源电压放大传输信号的功率。