Invention Grant
- Patent Title: Dynamic error vector magnitude duty cycle correction
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Application No.: US15293073Application Date: 2016-10-13
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Publication No.: US09825591B2Publication Date: 2017-11-21
- Inventor: 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: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H04B1/04 ; H03F1/56 ; H03F3/195 ; H03F3/24 ; H03F3/217 ; H03F3/72

Abstract:
Aspects of this disclosure relate to dynamic error vector magnitude (DEVM) compensation. In one embodiment, an apparatus includes an amplifier, a low pass filter, and a bias circuit. The amplifier, such as a power amplifier, can amplify an input signal. The low pass filter, such as an integrator, can generate a correction signal based at least partly on an indication of a duty cycle of the amplifier. The indication of the duty cycle of the amplifier can be an enable signal for the amplifier, for example. The bias circuit can generate a bias signal based at least partly on the correction signal and provide the bias signal to the amplifier to bias the amplifier.
Public/Granted literature
- US20170033746A1 DYNAMIC ERROR VECTOR MAGNITUDE DUTY CYCLE CORRECTION Public/Granted day:2017-02-02
Information query
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