RF Amplifier Supply Voltage Tracking Across Different Waveforms
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Solution Overview
Problem
Existing average power tracking techniques fail to maintain target efficiency across different waveforms, leading to inefficiency and power wastage in amplifiers used for radio-frequency signals, as they use the same supply voltage for various waveforms with related average power outputs.
Innovation Solution
Implementing waveform-tailored average power tracking, which dynamically adjusts the supply voltage based on the specific waveform to ensure optimal efficiency by using different supply voltages for different waveforms, thereby aligning the supply voltage with the target average output powers for each waveform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same supply voltage is used for various waveforms with related average power outputs, then the amplifier can maintain consistent operating conditions, but the amplifier fails to achieve target efficiency across different waveforms leading to power wastage
Solution Approach 1:
The system dynamically adjusts the supply voltage based on the detected waveform type and average power output level. The average power tracking module continuously monitors the amplifier's operation and modifies the supply voltage in real-time to match the specific waveform characteristics, enabling the amplifier to operate at target efficiency across different waveform types while maintaining stable and reliable operation.
Solution Approach 2:
The invention changes the supply voltage parameter according to the waveform type and average power output. By implementing waveform-tailored voltage levels, the system optimizes the amplifier's efficiency for each specific waveform while maintaining consistent and reliable operating conditions through controlled parameter adjustment.
2Loss of energy
If waveform-tailored average power tracking is implemented to use different supply voltages for different waveforms, then the amplifier achieves target efficiency across various waveforms, but the system complexity increases
Solution Approach 1:
The average power tracking module implements a feedback mechanism that monitors the amplifier's average power output and waveform characteristics, then adjusts the supply voltage accordingly. This closed-loop control system automatically optimizes power efficiency across different waveforms without requiring complex manual intervention or system reconfiguration.
Solution Approach 2:
The average power tracking module serves as an intermediary component that mediates between the power source and the amplifier. It translates waveform and power level information into appropriate supply voltage adjustments, simplifying the overall system architecture while achieving waveform-tailored efficiency optimization.
3Use of energy by moving object
If dynamic supply voltage adjustment is made based on waveform and average power output, then power consumption is reduced and mobile operation is extended, but the control mechanism becomes more complex
Solution Approach 1:
The amplifier system performs self-optimization through the average power tracking module, which automatically detects waveform types and adjusts supply voltage based on measured average power output. This self-service mechanism reduces power consumption and extends mobile operation without requiring external control intervention, balancing energy efficiency with acceptable control complexity.
Data Source
AI summary
An apparatus is disclosed for waveform-tailored average power tracking. In an example aspect, the apparatus includes an amplifier, a power converter, and an average power tracking module. The amplifier is configured to amplify radio-frequency signals using a supply voltage. The radio-frequency signals have different waveforms. The power converter is coupled to the amplifier and configured to provide the supply voltage. The average power tracking module is coupled to the power converter and configured to adjust the supply voltage according to the different waveforms to cause the supply voltage to vary across at least two waveforms of the different waveforms for related average output powers.