| 发明名称 | Methods and apparatus for envelope tracking system | ||
| 摘要 | A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module. | ||
| 申请公布号 | US9288098(B2) | 申请公布日期 | 2016.03.15 |
| 申请号 | US201514612305 | 申请日期 | 2015.02.03 |
| 申请人 | MediaTek, Inc. | 发明人 | Yan Sheng-Hong;Hong Hao-Ping |
| 分类号 | H03F1/32;H04B1/04;H04L27/34;H03F3/24 | 主分类号 | H03F1/32 |
| 代理机构 | Optimus Patents US, LLC | 代理人 | Optimus Patents US, LLC |
| 主权项 | 1. A communication unit comprising: an envelope tracking system operably coupled to a power amplifier, PA, module and comprising: at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples, wherein the maximum slew rate is dynamically calculated; anda supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module. | ||
| 地址 | TW | ||