
基本信息:
- 专利标题: 用于降低功率放大器中电源灵敏度的电路和方法
- 专利标题(英):Circuits and methods for reducing supply sensitivity in a power amplifier
- 申请号:CN201580055415.1 申请日:2015-10-13
- 公开(公告)号:CN106797203A 公开(公告)日:2017-05-31
- 发明人: A·斯库德里 , A·哈德吉克里斯托斯
- 申请人: 高通股份有限公司
- 申请人地址: 美国加利福尼亚州
- 专利权人: 高通股份有限公司
- 当前专利权人: 高通股份有限公司
- 当前专利权人地址: 美国加利福尼亚州
- 代理机构: 北京市金杜律师事务所
- 代理人: 王茂华; 张宁
- 优先权: 14/518,967 20141020 US
- 国际申请: PCT/US2015/055369 2015.10.13
- 国际公布: WO2016/064625 EN 2016.04.28
- 进入国家日期: 2017-04-12
- 主分类号: H03F1/22
- IPC分类号: H03F1/22 ; H03F3/193 ; H03F3/21 ; H03F3/24 ; H03F3/72
In one embodiment, the present disclosure includes a circuit comprising a first power amplifier stage having an input to receive an input signal, an output coupled to an output node, the first power amplifier stage receiving a time-varying power supply voltage. The circuit further includes a second power amplifier stage configured in parallel with the first power amplifier stage having an input to receive the input signal, an output coupled to the output node, the second power amplifier stage receiving the time-varying power supply voltage. A first gain of the first power amplifier stage decreases when the power supply voltage is in a first low voltage range, and a second gain of the second power amplifier stage compensates for the decreasing gain of the first power amplifier stage in the first low voltage range.
IPC结构图谱:
H | 电学 |
--H03 | 基本电子电路 |
----H03F | 放大器 |
------H03F1/00 | 只用电子管,只用半导体器件或只用未特别指明的器件作为放大元件的放大器的零部件 |
--------H03F1/02 | .为提高效率对放大器的改进,例如滑动甲类放大级,采用辅助振荡 |
----------H03F1/22 | ..用栅—阴耦合,即按地阴极或发射极之后是接地栅极或基极 |