Integrated Power Supply Speaker for Portable Audio
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Solution Overview
Problem
Portable devices like laptops and tablets face challenges in providing high-quality audio to multiple users, as built-in speakers are underpowered and bandlimited, while external speakers add bulk and require separate power sources.
Innovation Solution
Integrating a speaker into the power supply of portable devices, allowing audio signals to be transmitted via wire or wirelessly, using a power converter and driver to amplify sound, thus enabling deeper bass without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If external powered speakers are used, then audio quality is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines the speaker and power converter into a single integrated power supply unit. The speaker is housed within the power supply casing, and the power converter provides both power conversion and audio amplification functions. This merging eliminates the need for separate external speakers while maintaining high audio quality through the integrated amplifier and larger speaker driver.
Solution Approach 2:
The power supply unit performs multiple functions: it converts AC power to DC power for charging the portable device, amplifies audio signals through an integrated amplifier, and drives a speaker for high-quality audio output. The audio jack receives audio signals that are then processed by the amplifier and output through the speaker, all within the same power supply unit.
2Weight of moving object
If built-in speakers are used, then device portability is maintained, but audio quality deteriorates due to space constraints
Solution Approach 1:
The patent merges the speaker system with the power supply unit, allowing the use of a larger speaker driver than would fit within the portable device itself. The speaker is housed in the power supply casing, which has no portability constraints, thus achieving high audio quality without compromising the portability of the main device.
Solution Approach 2:
The solution moves the speaker system from the constrained three-dimensional space of the portable device to the larger space of the power supply unit. This dimensional transition allows the speaker driver to be much larger, enabling full-range audio reproduction including deep bass, while the portable device remains compact and portable.
3Adaptability or versatility
If multiple users need to hear audio, then audio output power must be increased, but built-in speakers remain underpowered
Solution Approach 1:
The power converter is designed to provide both power conversion for charging and audio amplification for multiple users. The amplifier receives audio signals through an audio jack and provides sufficient power output to drive the speaker at high volumes, enabling multiple users to hear audio clearly without being constrained by the limited power of built-in speakers.
Solution Approach 2:
The integration of the amplifier and speaker in the power supply unit creates a high-power audio output system that can serve multiple users simultaneously. The larger speaker driver combined with the amplifier provides sufficient volume and bass response for group listening, eliminating the need for each user to have separate headphones or for the use of multiple small speakers.
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 provides full, dynamic, high-quality audio to multiple users without adding external components, enhancing sound reproduction across the hearing spectrum and reducing the need for separate power sources.
Implementation Method 1
a power converter for providing power to the electrical appliance
Implementation Method 2
a speaker for generating sound
Implementation Method 3
a driver for amplifying the audio signal
Data Source
AI summary
A portable electrical appliance comprises an audio signal source, a power supply module having a housing external to the portable electrical appliance for providing power to the electronic appliance having, a power converter for providing DC power to at least the portable electrical appliance, a speaker for generating sound and audio processing means for manipulating audio signals from the audio signal source, wherein the power converter, audio processing means and speaker are mounted within the housing, and communication means for coupling the audio signal to the processing means. The communication means is able to be wireless or wired.