Selective Voltage Boost Stage for Wireless Power Efficiency
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Solution Overview
Problem
Wireless communication devices face challenges in managing increased transmission power requirements for new communication modes without compromising battery life or adding complexity, especially when not all operating modes need enhanced transmit power.
Innovation Solution
A selective voltage supply boost stage controlled by a modem, which compares the input voltage to a threshold and boosts the supply only when necessary for specific operating modes, ensuring efficient power management and reduced impact on other modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission power is increased to support new communication modes, then data throughput is improved, but battery life deteriorates
Solution Approach 1:
The patent implements dynamic voltage scaling by adjusting the supply voltage to the power amplifier based on the current communication mode. The voltage regulator receives control signals from the modem and dynamically changes the voltage level - providing higher voltage when high data throughput is needed and lower voltage when standard throughput suffices, thus optimizing the balance between productivity and battery life
Solution Approach 2:
The patent changes the electrical parameter (supply voltage) of the power amplifier according to operating conditions. By modifying the voltage parameter dynamically based on communication mode requirements, the system achieves higher data throughput when needed while consuming less power during normal operation, directly addressing the contradiction between throughput and battery life
2Power
If voltage supply is boosted for high power modes, then transmission power is improved, but device complexity increases
Solution Approach 1:
The voltage regulator is designed with multi-functionality, serving both standard and high power communication modes through a single integrated circuit. The regulator can operate in multiple voltage output states based on control signals, eliminating the need for separate power supply circuits for different power levels and thus improving transmission power capability without proportionally increasing device complexity
Solution Approach 2:
The patent introduces a voltage regulator as an intermediary component between the power source and the power amplifier. This mediator dynamically adjusts the voltage level based on communication mode requirements, enabling the system to achieve high transmission power when needed while keeping the overall circuit complexity manageable through centralized control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for optimized power amplification in wireless communication devices by selectively boosting the supply voltage only when needed, enhancing power efficiency, reducing heat dissipation, and maintaining battery life while supporting higher data throughput requirements.
Implementation Method 1
a pre-signal amplifier, supply power conditioning circuit including a selective voltage supply boost stage having an input coupled to a voltage supply source for receiving a voltage supply, and an output for producing a selectively boosted voltage supply source
Data Source
AI summary
The present application provides a pre-signal amplifier, supply power conditioning apparatus, a wireless communication device and a method for providing selective pre-signal amplifier, supply power conditioning. A selective voltage supply boost stage is included, which has an input coupled to a voltage supply source for receiving a voltage supply, and an output for producing a selectively boosted voltage supply source. A voltage boost circuit is further included having a voltage boost control input coupled to a modem for controlling when the selectively boosted voltage supply source produced at the output is boosted. When the voltage boost control input identifies at least one of one or more modes in which the modem is currently operating, that a boost to the received voltage supply is desired, the resulting selectively boosted voltage supply source produced at the output is boosted.