Media Streaming Device Super Capacitor Power Stabilization
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Solution Overview
Problem
Media streaming devices such as OTT STBs and TV sticks require high transient power, leading to increased power supply costs due to high current demands, which existing technologies have not adequately addressed.
Innovation Solution
A media streaming device equipped with a super capacitor and a protection module that includes a current limiter and disabling unit, where the current limiter generates fixed-current power to charge the super capacitor and supply power to the media streaming module, and the disabling unit enables or disables the module based on voltage thresholds to manage power efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high transient power is provided to media streaming device, then power supply capability is improved, but current demand increases leading to higher power supply costs
Solution Approach 1:
The super capacitor pre-charges to a first voltage level before the media streaming device starts up, so that when the device needs transient power, the capacitor can immediately discharge to provide the required current without demanding high current from the power supply unit, thus reducing power supply costs while maintaining high transient power capability
Solution Approach 2:
The super capacitor acts as an intermediary energy storage component between the power supply unit and the media streaming device. It absorbs excess power when available and releases power during high-demand periods, mediating the current flow to prevent high current demands on the power supply while ensuring adequate transient power delivery to the device
2Stability of the object's composition
If super capacitor is used to stabilize power, then power stability is improved, but risk of abnormal start-up increases due to insufficient voltage detection
Solution Approach 1:
The protection module continuously monitors the voltage at the super capacitor terminal and uses this feedback to control the enabling of the media streaming device. The module compares the detected voltage against a threshold and only enables the device when sufficient voltage is present, preventing abnormal start-ups while maintaining power stability throughout operation
Solution Approach 2:
The protection module autonomously manages the power delivery by detecting voltage levels and automatically enabling or disabling the media streaming device based on the super capacitor's charge state, without requiring external intervention. This self-monitoring and self-control mechanism ensures both power stability and reliable operation
3Manufacturing precision
If current limiter provides fixed-current power, then power control precision is improved, but device complexity increases due to additional protection module
Solution Approach 1:
The protection module performs multiple functions: it monitors super capacitor voltage, controls device enabling/disabling based on voltage thresholds, and prevents abnormal start-ups. By consolidating these protection and control functions into a single integrated module rather than separate components, the design achieves precise power control without proportionally increasing overall device complexity
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 effectively manages power supply to prevent abnormal start-ups and provides stable power during high transient consumption, reducing the risk of power shortages and lowering operational costs by using the super capacitor to stabilize power delivery.
Implementation Method 1
the super capacitor has a first terminal electrically coupled to a power-supplying path and a second terminal electrically coupled to a ground terminal
Implementation Method 2
the current limiter is configured to receive a power signal and perform current-limiting on the power signal to generate a fixed-current power
Data Source
AI summary
A media streaming device is provided that includes a media streaming module, a super capacitor and a protection module. The media streaming module provides the media stream. The super capacitor has a first terminal coupled to a power-supplying path and a second terminal coupled to a ground terminal. The protection module includes a current limiter and a disabling unit. The current limiter receives a power signal and performs current-limiting to generate a fixed-current power to charge the super capacitor and supply power to the media streaming module through the power-supplying path. The current limiter further detects a voltage of the first terminal of the super capacitor. The disabling unit disables the media streaming module when the voltage of the first terminal of the super capacitor is not higher than a voltage threshold value, and enables the media streaming module when the voltage is higher than the voltage threshold value.