Audio Power Source Parallel Paths Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio amplifier systems face inefficiencies due to all power passing through two converters, reducing system efficiency and average power availability, especially when the output load is lower than the source power limit, and often require higher voltage storage which is not optimal for devices like batteries and electric double layer capacitors.
Innovation Solution
The method employs parallel power paths without a power path controller, utilizing a simplified circuit operation to maximize average power available for audio amplifiers and supporting circuitry by using a power limiter and voltage regulators to manage power distribution between two transformer outputs, allowing for efficient power delivery and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If all power passes through two converters to the load, then power conversion is achieved, but system efficiency is reduced during times when the output load is lower than the source power limit
Solution Approach 1:
The power conversion system is segmented into two independent parallel paths: a first converter dedicated to audio amplifier power and a second converter for other loads. This segmentation allows each converter to operate independently, eliminating the inefficiency of sequential conversion while maintaining system manageability through modular design.
Solution Approach 2:
The power supply system is designed with multi-functionality where the first converter serves dual purposes: powering the audio amplifier directly and charging the storage device. The second converter independently handles other circuit loads. This universal design allows the system to adapt to varying load conditions and maximize efficiency across different operating scenarios.
2Power
If all power passes through two converters to the load, then power conversion is achieved, but the average power available from a limited source is reduced
Solution Approach 1:
The first converter continuously charges the storage device in advance during periods when the audio amplifier power demand is low. This preliminary action ensures that energy is pre-stored and readily available, allowing the system to deliver high average power during peak demand without undergoing inefficient sequential conversion at that moment.
Solution Approach 2:
The parallel converter architecture enables continuous useful action by allowing the first converter to simultaneously power the audio amplifier and charge the storage device when conditions permit. This eliminates idle time and ensures that the limited power source is continuously productively utilized, maximizing average power availability.
3Power
If higher voltage storage is used, then power storage capability is improved, but compatibility with batteries and electric double layer capacitors is reduced
Solution Approach 1:
The system employs parameter changes by using a controllable switching mechanism that adapts the voltage level presented to the storage device. The first converter can operate at different voltage levels depending on the storage device type, allowing high-voltage operation for capacitor-based storage while automatically adjusting to lower voltages for battery storage, thus maintaining both power capability and compatibility.
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 approach enhances overall converter efficiency, maximizes average power availability, reduces power dissipation, and minimizes energy usage, enabling higher peak audio output without exceeding power source limits, thus improving audio quality and practicality in power-limited applications.
Implementation Method 1
Power input is fed through a controlled power switch into a transformer. The transformer may be either isolated or non-isolated. There are two outputs from the transformer
Implementation Method 2
A second output from the transformer feeds a storage bank which may be a capacitive element, an electric double layer capacitor, or a battery
Data Source
AI summary
An improved method of providing high burst power to audio amplifiers from limited power sources, using parallel power paths to increase system efficiency without need for a power path controller, thus utilizing a simplified circuit operation and maximizing average power available for both the amplifier and supporting circuitry.