Power Amplifier Voltage Tracking Across Gain Modes and Bands
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication circuits consume excessive power due to fixed operation voltages, leading to inefficient power management and reduced battery life in devices.
Innovation Solution
An operation voltage detection method and communication device that dynamically adjust operation voltages based on test results to establish an average voltage tracking characterization table, optimizing power consumption by identifying optimal voltages for different gain modes and frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed high operation voltage is used to meet the linear requirement of maximum transmit power, then the power amplification circuit can maintain linear characteristics at maximum power, but power consumption increases significantly
Solution Approach 1:
The patent implements dynamic voltage adjustment by establishing a voltage lookup table that maps different output power levels to corresponding optimal operation voltages. The power amplification circuit dynamically selects the appropriate voltage from this table based on the current operating conditions, transitioning from a fixed high voltage to a dynamic voltage that adapts to the actual power level being transmitted.
Solution Approach 2:
The patent changes the operation voltage parameter based on output power levels. By detecting the current output power and selecting an corresponding voltage from the pre-established lookup table, the system optimizes the voltage parameter to match the actual operating conditions, thereby reducing power consumption while maintaining performance requirements.
2Stability of the object's composition
If a fixed operation voltage is used across different operation modes, then the power amplification circuit can operate consistently, but power consumption cannot be effectively reduced
Solution Approach 1:
The system transitions from a static fixed voltage to a dynamic voltage selection mechanism. The power amplification circuit now dynamically adjusts its operation voltage based on detected operating modes and power levels, using a lookup table to select the most appropriate voltage for each specific operating condition.
Solution Approach 2:
Different operation voltages are applied to different operation modes and power levels. Instead of using a single uniform voltage across all conditions, the system applies locally optimized voltages specific to each operating scenario, thereby reducing overall power consumption while maintaining stability within each mode.
3Power
If the operation voltage is set at peak value to meet maximum transmit power requirements, then the power amplification circuit can achieve maximum output power, but excessive power is consumed during normal operation
Solution Approach 1:
The patent implements dynamic voltage scaling where the operation voltage is adjusted according to the actual output power requirement. The voltage lookup table stores optimal voltage values for different power levels, allowing the circuit to operate at peak voltage only when maximum power is needed, and at lower voltages during normal operation.
Solution Approach 2:
The operation voltage parameter is changed based on the detected output power level. The system detects the current power level and selects an corresponding voltage from the lookup table, thereby changing the voltage parameter to match the actual power requirement rather than always using the peak voltage value.
Data Source
AI summary
An operation voltage method and a communication are provided. The operation voltage detection method is configured to use a test apparatus or a test program to detect a plurality of operation voltages of a power amplification circuit in a device under test. The power amplification circuit includes a plurality of gain modes. Each of the gain modes includes a plurality of operation frequency bands. Each of the operation frequency bands includes a plurality of operation voltage intervals. The operation voltage detection method detects each test passing voltage of each of the plurality of operation voltage intervals of each of operation frequency bands of each of the gain modes.