发明申请
- 专利标题： AMPLIFIER WITH ADJUSTABLE LOAD
- 专利标题（中）： 具有可调负载的放大器
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申请号： US14095814申请日： 2013-12-03
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公开(公告)号： US20150155838A1公开(公告)日： 2015-06-04
- 发明人: Ramanujam Srinidhi Embar , Joseph Staudinger , Geoffrey G. Tucker
- 申请人： Ramanujam Srinidhi Embar , Joseph Staudinger , Geoffrey G. Tucker
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 主分类号： H03F1/56
- IPC分类号： H03F1/56 ; H03F3/19 ; H03F3/21
摘要：
A device includes a Doherty amplifier having a carrier path and a peaking path. The Doherty amplifier includes a carrier amplifier configured to amplify a signal received from the carrier path and a peaking amplifier configured to amplify a signal received from the peaking path. The device includes a variable impedance coupled to an output of the Doherty amplifier, and a controller configured to set the variable impedance to a first impedance when an output power level of the Doherty amplifier is less than a threshold and to a second impedance when the output power level of the Doherty amplifier is above the threshold.
公开/授权文献
- US09209754B2 Amplifier with adjustable load 公开/授权日：2015-12-08
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