发明名称 |
APPARATUS AND METHODS FOR ENVELOPE TRACKERS |
摘要 |
Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier and an envelope tracker is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier. |
申请公布号 |
US2015326184(A1) |
申请公布日期 |
2015.11.12 |
申请号 |
US201514805343 |
申请日期 |
2015.07.21 |
申请人 |
SKYWORKS SOLUTIONS, INC. |
发明人 |
Balteanu Florinel G.;Khesbak Sabah;Tkachenko Yevgeniy A.;Ripley David Steven;Thompson Robert John |
分类号 |
H03F1/02;H03F3/19;H03F3/21;H04B1/04 |
主分类号 |
H03F1/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. (canceled) |
地址 |
Woburn MA US |