Invention Grant
- Patent Title: Systems, circuits and methods related to dynamic error vector magnitude corrections
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Application No.: US14586938Application Date: 2014-12-30
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Publication No.: US09628029B2Publication Date: 2017-04-18
- Inventor: Chun-Wen Paul Huang , Lui Lam , Mark M. Doherty
- Applicant: SKYWORKS SOLUTIONS, INC.
- Applicant Address: US MA Woburn
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US MA Woburn
- Agency: Chang & Hale LLP
- Agent Tony T. Chen; James Chang
- Main IPC: H03F1/30
- IPC: H03F1/30 ; H03F3/19 ; H03F3/21 ; H03F1/02 ; H03F3/72

Abstract:
Systems, circuits and methods related to dynamic error vector magnitude (DEVM) corrections. In some embodiments, a power amplifier (PA) system can include a PA circuit having a plurality of amplification stages, and a bias system in communication with the PA circuit and configured to provide bias signals to the amplification stages. The PA system can further include a first correction circuit configured to generate a correction current that results in an adjusted bias signal for a selected amplification stage, with the adjusted bias signal being configured to compensate for an error vector magnitude (EVM) during a dynamic mode of operation. The PA system can further include a second correction circuit configured to change the correction current based on an operating condition associated with the PA circuit.
Public/Granted literature
- US20150303883A1 SYSTEMS, CIRCUITS AND METHODS RELATED TO DYNAMIC ERROR VECTOR MAGNITUDE CORRECTIONS Public/Granted day:2015-10-22
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