Power Amplifier Bypass Circuit for Wireless Device Battery Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless devices face significant battery life reduction due to the continuous power consumption of power amplifiers, which are necessary for maintaining maximum data transfer rates but consume over fifty percent of the device's power.
Innovation Solution
A power amplification control circuit that selectively activates or deactivates the power amplifier based on the quality of the communication channel and distance between the transmitting and receiving devices, using a processor to control a switch to bypass the power amplifier when the channel quality is sufficient to maintain a target data transfer rate, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the power amplifier is continuously operated to maintain maximum data transfer rate, then the data transfer rate is improved, but the battery life deteriorates
Solution Approach 1:
The patent implements dynamic control of the power amplifier by switching between active and inactive states based on real-time channel quality assessment. The system continuously monitors communication channel conditions and adjusts the power amplifier operation accordingly, transitioning from static continuous operation to dynamic adaptive operation, thereby resolving the contradiction between maintaining high data transfer rates and preserving battery life.
Solution Approach 2:
The system changes the operational parameters of the power amplifier based on channel quality metrics. When channel quality is sufficient, the power amplifier is deactivated or operated at reduced power levels, effectively changing its operational state from high-power continuous mode to low-power or zero-power mode, thus resolving the energy consumption issue while maintaining adequate data transfer performance.
2Duration of action of moving object
If the power amplifier is deactivated to save power, then battery life is improved, but the data transfer rate deteriorates
Solution Approach 1:
The patent employs feedback mechanisms where the system continuously monitors communication channel quality and uses this information to control power amplifier operation. The feedback loop assesses whether the channel can support the required data transfer rate without power amplification and adjusts the power amplifier state accordingly, ensuring that battery life is extended only when channel conditions permit, thus resolving the contradiction between power savings and data transfer performance.
Solution Approach 2:
The system performs self-assessment of channel quality and autonomously decides when to activate or deactivate the power amplifier based on predefined thresholds and channel conditions. This self-service capability allows the system to intelligently manage its own power consumption without external intervention, optimizing the balance between battery life and data transfer rate maintenance.
Data Source
AI summary
A system and method are disclosed for controlling transmit power amplification in a wireless transmitting device. A processor receives data to determine whether a communication channel from a transmitting device to a receiving device is strong enough to support a target data transmit rate of the devices with a power amplifier either on or off. The processor controls a switching device between a data transmitter circuit and the transmitter's antenna based on the quality of the communication channel. In a first state, the switching device connects the data transmitter circuit to the power amplifier to increase the strength of the signal communicated to the antenna. In a second state, the switching device bypasses the power amplifier. The power amplifier is turned off when the switch is in the second state, thereby decreasing the power consumed by the transmitting device as it transmits data at the target data transmit rate.