| 发明名称 | Power amplifier | ||
| 摘要 | A power amplifier may include a first amplifying unit receiving a first bias signal to amplify a power level of an input signal; an envelope detecting unit detecting an envelope of the input signal; a comparing circuit unit comparing a peak value of the detected envelope with a preset reference voltage; and a second amplifying unit amplifying the power level of the input signal according to a second bias signal set depending on a comparison result of the comparing circuit unit. | ||
| 申请公布号 | US9577583(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201414273265 | 申请日期 | 2014.05.08 |
| 申请人 | Samsung Electro-Mechanics Co., Ltd. | 发明人 | Lee Kwang Du;Kim Jeong Hoon;Yoon Ho Kwon;Nam Joong Jin;Choi Kyu Jin;Kang Suk Chan;Choi Jae Hyouck;Hong Kyung Hee |
| 分类号 | H03G3/20;H03F1/02;H03F3/193;H03F3/21 | 主分类号 | H03G3/20 |
| 代理机构 | NSIP Law | 代理人 | NSIP Law |
| 主权项 | 1. A power amplifier comprising: a first amplifying unit receiving a first bias signal to amplify a power level of an input signal; an envelope detecting unit detecting an envelope of the input signal; a comparing circuit unit comparing a peak value of the detected envelope with a preset reference voltage; a second amplifying unit amplifying the power level of the input signal according to a second bias signal set depending on a comparison result of the comparing circuit unit; and a first inductor connected between the first and second amplifying units and a power input terminal and decreasing an alternating current component of a driving voltage provided by the power input terminal. | ||
| 地址 | Suwon-si KR | ||