Invention Grant
US09100033B2 Systems and methods for using a digital power amplifier controller (DPAC) having foward-loop correction and feedback-loop correction
有权
使用具有前馈环校正和反馈环路校正的数字功率放大器控制器(DPAC)的系统和方法
- Patent Title: Systems and methods for using a digital power amplifier controller (DPAC) having foward-loop correction and feedback-loop correction
- Patent Title (中): 使用具有前馈环校正和反馈环路校正的数字功率放大器控制器(DPAC)的系统和方法
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Application No.: US14137431Application Date: 2013-12-20
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Publication No.: US09100033B2Publication Date: 2015-08-04
- Inventor: Eric L Jackson
- Applicant: MOTOROLA SOLUTIONS, INC
- Applicant Address: US IL Schaumburg
- Assignee: Motorola Solutions, Inc.
- Current Assignee: Motorola Solutions, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Barbara R. Doutre; Steven A. May
- Main IPC: H03G3/30
- IPC: H03G3/30 ; H03M1/08 ; H03F1/02 ; H03F3/21 ; H03F3/19 ; H04B17/00

Abstract:
Disclosed herein are systems and methods for using a digital power amplifier controller (DPAC) having forward-loop correction and feedback-loop correction. In an embodiment, the DPAC receives, via an analog-to-digital converter (ADC), a digital power-measurement signal from a power sensor coupled to an output of a power amplifier. The DPAC adjusts (e.g., linearizes) the digital power-measurement signal using a measurement-correction function for the sensor, and uses the adjusted digital power-measurement signal to generate a digital feedback signal, which the DPAC uses to generate a digital power-control signal that reflects a desired power level at the output of the power amplifier. The DPAC adjusts (e.g., linearizes) the digital power-control signal using a control-correction function for the power amplifier, and outputs the adjusted digital power-control signal via a digital-to-analog converter (DAC) to a power-control node of the power amplifier.
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