Microphone Power Supply Using Single Battery and Transformers
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Solution Overview
Problem
Existing wireless microphones using two AA type batteries face issues with weight and size, making them difficult to handle and design, as they require multiple batteries to supply sufficient voltage to various loads, which complicates miniaturization and user convenience.
Innovation Solution
A microphone device that uses a single battery and incorporates a current suppresser and multiple transformers to supply voltage to embedded electric circuit loads, improving handling and user convenience by preventing inrush current and reducing battery count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If two AA type batteries are used to supply sufficient voltage to various loads, then the voltage requirement is met, but the housing becomes heavy and large, degrading handling convenience
Solution Approach 1:
The patent divides the power supply system into multiple independent voltage generation paths. Each load (wireless communication unit, amplifier unit, standby unit) has its own transformer that converts the single battery's output to the required voltage level. This segmentation allows each component to receive appropriate voltage without requiring multiple batteries in series, thus reducing weight and improving handling while meeting voltage requirements.
Solution Approach 2:
The patent changes the voltage parameter dynamically for different loads by using multiple transformers with different turns ratios. Each transformer converts the single battery voltage to the specific voltage level required by its associated load. This parameter transformation enables a single battery to effectively supply power to multiple components with different voltage requirements, avoiding the need for multiple batteries.
2Power
If two AA type batteries are used to supply sufficient current, then the current requirement is met, but the device complexity increases
Solution Approach 1:
The power supply system is segmented into independent channels, each with its own current control mechanism. The single battery's current output is distributed to multiple transformers, which independently regulate current to their respective loads. This segmentation simplifies the overall battery configuration while maintaining adequate current supply capability for each component.
Solution Approach 2:
Transformers act as intermediary devices between the single battery and various loads. Each transformer receives power from the common battery source and independently regulates voltage and current to its specific load requirements. This intermediary approach simplifies the power distribution architecture compared to direct multi-battery connections, reducing configuration complexity.
3Reliability
If multiple batteries are used to ensure sufficient power, then the power supply reliability is improved, but the miniaturization of the device becomes difficult
Solution Approach 1:
The patent merges multiple power supply functions into a single battery system. Instead of using separate batteries for different voltage requirements, all power needs are consolidated around one battery with multiple transformers branching out to provide the necessary voltage levels. This merging reduces the number of battery compartments and associated structures, enabling miniaturization while maintaining power supply reliability.
Solution Approach 2:
The single battery serves multiple functions by powering different components with different voltage requirements. Through the use of multiple transformers, one battery becomes a universal power source that can provide various voltage levels to different loads simultaneously. This multi-functionality eliminates the need for specialized batteries for each component, reducing overall device volume.
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
The solution allows for efficient voltage supply to various loads using a single battery, enhancing user handling and convenience while reducing the weight and size of the microphone device, thus improving its design quality.
Implementation Method 1
a plurality of transformers each of which is connected in series between the current suppresser and each of a plurality of loads and outputs a voltage in response to a corresponding load of the plurality of loads connected thereto based on an output of the current suppresser
Data Source
AI summary
There is provided a microphone device for transmitting a collected audio signal to a receiving device wirelessly. The microphone device includes a battery, a current suppresser that is connected in series with the battery and suppresses a current from the battery and a plurality of transformers each of which is connected in series between the current suppresser and each of a plurality of loads and outputs a voltage in response to a corresponding load of the plurality of loads connected thereto based on an output of the current suppresser.