发明名称 |
POWER AMPLIFIER CONTROL CIRCUIT |
摘要 |
This disclosure provides systems, apparatus, and methods for switching a portion of a power amplifier on and off during different modes of operation. In one aspect, a control circuit can include separate switches to provide bias currents to different portions of a power amplifier. The control circuit can include another switch to electrically connect outputs of the separate switches in a first mode of operation (for example, a high power mode) and electrically isolate the outputs of the separate switches in a second mode of operation (for example, a low power mode). In some implementations, a circuit element, such as a field effect transistor or a diode, can turn off one of the separate switches in the second mode. Alternatively or additionally, another circuit element, such as a field effect transistor or a diode, can prevent a power amplifier portion from turning on in the second mode. |
申请公布号 |
WO2012088300(A2) |
申请公布日期 |
2012.06.28 |
申请号 |
WO2011US66553 |
申请日期 |
2011.12.21 |
申请人 |
SKYWORKS SOLUTIONS, INC.;JOLY, CHRISTOPHE, M.;CHEN, YUE;XU, SHIHUI |
发明人 |
JOLY, CHRISTOPHE, M.;CHEN, YUE;XU, SHIHUI |
分类号 |
H03F1/30;H03F3/24 |
主分类号 |
H03F1/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|