Invention Grant
US09515623B2 Multiple-state, switch-mode power amplifier systems and methods of their operation
有权
多状态,开关模式功率放大器系统及其运行方法
- Patent Title: Multiple-state, switch-mode power amplifier systems and methods of their operation
- Patent Title (中): 多状态,开关模式功率放大器系统及其运行方法
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Application No.: US14559895Application Date: 2014-12-03
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Publication No.: US09515623B2Publication Date: 2016-12-06
- Inventor: Jean-Christophe Nanan , Jean-Jacques Bouny , Cedric Cassan , Joseph Staudinger , Hugues Beaulaton
- Applicant: FREESCALE SEMICONDUCTOR, INC.
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Agent Sherry W. Schumm
- Priority: EP13306658 20131203
- Main IPC: H03F3/68
- IPC: H03F3/68 ; H03F3/217 ; H03F3/189 ; H03F3/21 ; H03F3/24 ; H03F3/30 ; H03F3/60 ; H03F3/72 ; H03M1/06 ; H03M1/78

Abstract:
An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA branch output. A module coupled to the amplifier samples an input RF signal, and produces combinations of drive signals based on the samples. When an SMPA branch receives a first combination of drive signals, it produces an output signal at a first voltage level. Conversely, when the SMPA branch receives a different second combination of drive signals, it produces the output signal at a different second voltage level. Finally, when the SMPA branch receives a different third combination of drive signals, it produces the output signal at a voltage level of substantially zero. A combiner combines the output signals from all of the SMPA branches to produce a combined output signal that may have, at any given time, one of 2*N+1 quantization states.
Public/Granted literature
- US20150155840A1 MULTIPLE-STATE, SWITCH-MODE POWER AMPLIFIER SYSTEMS AND METHODS OF THEIR OPERATION Public/Granted day:2015-06-04
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