Invention Grant
US08624678B2 Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing
有权
具有开关体积偏置和自适应偏置的功率放大器的输出级
- Patent Title: Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing
- Patent Title (中): 具有开关体积偏置和自适应偏置的功率放大器的输出级
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Application No.: US13310623Application Date: 2011-12-02
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Publication No.: US08624678B2Publication Date: 2014-01-07
- Inventor: Baker Scott , George Maxim , Stephen Franck
- Applicant: Baker Scott , George Maxim , Stephen Franck
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices (Cayman Islands), Ltd.
- Current Assignee: RF Micro Devices (Cayman Islands), Ltd.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03F1/22
- IPC: H03F1/22
Abstract:
A power amplifier (PA) using switched-bulk biasing to minimize the risk of output stage snapback effect is disclosed. An adaptive biasing of the output stage prevents device breakdown while accommodating large voltage swings. These protection techniques can be applied to all types of cascode configurations of a PA, including single-ended, differential, quadrature, segmented and any combination thereto.
Public/Granted literature
- US20120139643A1 Output Stage of a Power Amplifier Having a Switched-Bulk Biasing and Adaptive Biasing Public/Granted day:2012-06-07
Information query
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