| 发明名称 |
RESONANCE SUPPRESSION FOR ENVELOPE TRACKING MODULATOR |
| 摘要 |
An envelope tracking power supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a first path for tracking low frequency variations in the reference signal and a second path for tracking high frequency variations in the reference signal, and further comprising a combiner having a low frequency combining element for the first path and a high frequency combining element for the second path, and for generating the modulated supply voltage, wherein there is further provided sensing circuitry for sensing a resonance signal in the low or high frequency combining element, and adjusting circuitry for adjusting a signal in the first path in dependence on the sensed resonance signal. |
| 申请公布号 |
US2016006397(A1) |
申请公布日期 |
2016.01.07 |
| 申请号 |
US201414765246 |
申请日期 |
2014.01.31 |
| 申请人 |
NUJIRA LIMITED |
发明人 |
WIMPENNY Gerard |
| 分类号 |
H03F1/02;H04L25/49;H03F3/217;H03F3/19;H03F3/21 |
主分类号 |
H03F1/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An envelope tracking power supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a first path for tracking low frequency variations in the reference signal and a second path for tracking high frequency variations in the reference signal, and further comprising a combiner, and for generating the modulated supply voltage, wherein there is further provided sensing circuitry for sensing a resonance signal in the combiner, and adjusting circuitry for adjusting a signal in the first path to control the resonance in dependence on the sensed signal. |
| 地址 |
CAMBRIDGESHIRE GB |
