发明申请
- 专利标题： DUAL INSTANTANEOUS ENVELOPE TRACKING
- 专利标题（中）： 双重即时包裹跟踪
-
申请号： US14254215申请日： 2014-04-16
-
公开(公告)号： US20140306769A1公开(公告)日： 2014-10-16
- 发明人: Nadim Khlat , Baker Scott , Michael R. Kay
- 申请人： RF Micro Devices, Inc.
- 申请人地址： US NC Greensboro
- 专利权人： RF Micro Devices, Inc.
- 当前专利权人： RF Micro Devices, Inc.
- 当前专利权人地址： US NC Greensboro
- 主分类号： H03F1/02
- IPC分类号： H03F1/02 ; H03F3/19
摘要：
Power supply circuitry, which includes a parallel amplifier and a parallel amplifier power supply, is disclosed. The power supply circuitry operates in either an average power tracking mode or an envelope tracking mode. The parallel amplifier power supply provides a parallel amplifier power supply signal. The parallel amplifier regulates an envelope power supply voltage based on an envelope power supply control signal using the parallel amplifier power supply signal, which provides power for amplification. During the envelope tracking mode, the envelope power supply voltage at least partially tracks an envelope of an RF transmit signal and the parallel amplifier power supply signal at least partially tracks the envelope power supply control signal. During the average power tracking mode, the envelope power supply voltage does not track the envelope of the RF transmit signal.
公开/授权文献
- US09479118B2 Dual instantaneous envelope tracking 公开/授权日：2016-10-25
信息查询
IPC分类:
