Audio Amplifier Voltage Control for Low-Volume Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sound source output apparatuses consume unnecessary power due to applying maximum amplification voltage regardless of the volume level, leading to increased power consumption even at low volume settings.
Innovation Solution
A sound source output apparatus that senses the volume level and adjusts the amplification power voltage accordingly, using a voltage control signal to optimize power usage by determining the optimal amplification power voltage based on the sensed volume level and additional factors like genre and sound wave analysis information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If maximum amplification voltage is applied to the amplifier regardless of volume level, then sufficient audio output quality is maintained, but power consumption increases unnecessarily
Solution Approach 1:
The patent implements dynamic voltage control by adjusting the amplification power voltage according to the actual volume level. The controller dynamically changes the voltage supplied to the amplifier based on the set volume, transitioning from a static maximum voltage approach to a dynamic adaptive voltage approach that matches actual operational needs.
Solution Approach 2:
The patent changes the voltage parameter of the amplification power supplied to the amplifier based on the volume level. By modifying the voltage parameter dynamically according to operational conditions (volume settings), the system optimizes power consumption while maintaining adequate audio output quality for each volume level.
2Power
If maximum amplification power voltage is continuously supplied, then audio signal amplification is sufficient, but audio playable time decreases
Solution Approach 1:
The system dynamically adjusts the amplification power voltage based on volume level, extending battery life by supplying appropriate power only when needed. At lower volume levels, reduced voltage extends playable time while still providing sufficient amplification for the desired output level.
Solution Approach 2:
The controller periodically monitors and adjusts the amplification power voltage based on changing volume level conditions, optimizing the balance between power supply and battery consumption over time to maximize audio playable time.
Data Source
AI summary
Disclosed are a sound source output apparatus based on amplification power source control according to a volume level and an operating method thereof. The sound source output method according to the exemplary embodiment of the present disclosure includes a volume level sensing step of sensing a volume level; a control step of generating a voltage control signal by determining an amplification power voltage for an amplification operation based on the sensed volume level; a power applying step of applying the adjusted amplification power voltage based on the voltage control signal; an audio signal generating step of generating an audio signal by performing an amplifying operation of the sound signal which is converted based on the amplification power voltage; and an audio output step of outputting the audio signal.