Selective Voltage Boosting for Long-Cable Radio Power Delivery
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Solution Overview
Problem
The inefficiency and increased power loss in DC power delivery systems due to long power conductors result in voltage drops that can hinder radio operation, leading to communication disruptions and increased operational costs, while traditional boost converters compromise efficiency at lower power levels.
Innovation Solution
A selective boost converter system that dynamically adjusts voltage based on current levels, bypassing the boost converter when efficiency is not improved, using switch circuitry, current sensors, and processing circuitry to optimize DC power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a DC voltage boost converter is deployed to reduce power loss in long power conductors, then voltage drop across power conductors is reduced and DC power efficiency is improved, but the boost converter has low efficiency at lower power levels which increases operational costs and carbon footprint
Solution Approach 1:
The system dynamically switches between boost converter mode and bypass mode based on real-time current level detection. When current exceeds a threshold, the boost converter is activated; when current is below the threshold, the system bypasses the boost converter. This dynamic adaptation allows the system to optimize power efficiency by avoiding the boost converter's inefficiency at low power levels while still providing voltage boosting when needed.
Solution Approach 2:
The system changes its operational parameters by switching between two distinct states: boosted voltage mode and unboosted voltage mode. The processing circuitry monitors current levels and adjusts the voltage output parameter accordingly, using the switch circuitry to reconfigure the electrical connection between the power source and the radio. This parameter change enables the system to adapt to varying power demands and maintain optimal efficiency.
2Reliability
If a DC voltage boost converter is always activated to maintain adequate voltage at the radio, then radio functionality is ensured, but operational costs and carbon footprint increase due to the boost converter's low efficiency at lower power levels
Solution Approach 1:
The system uses dynamic current level monitoring and threshold-based control to switch between operational modes. The processing circuitry continuously detects current levels and activates or deactivates the boost converter function based on whether the current exceeds the predefined threshold. This ensures the radio receives adequate voltage when needed while avoiding unnecessary energy consumption during low-power operation.
Solution Approach 2:
The system extracts the boost converter function from the main power delivery path by implementing a parallel bypass route. The switch circuitry can disconnect the boost converter from the power flow when it is not needed, allowing power to flow directly from the power source to the radio through the bypass path. This separation enables selective activation of the boost converter only when voltage boosting is necessary.
3Use of energy by stationary object
If the boost converter is bypassed to reduce power consumption, then operational costs are reduced, but voltage drop across power conductors may become too large causing the radio to cease functioning
Solution Approach 1:
The system implements feedback control by continuously monitoring current levels through the current sensor and using this information to control the switch circuitry. The processing circuitry compares the measured current against a predefined threshold and adjusts the boost converter activation state accordingly. This feedback mechanism ensures that the boost converter is activated before the voltage drop becomes large enough to cause radio malfunction, maintaining reliable operation while minimizing energy consumption.
Solution Approach 2:
The system takes preliminary action by proactively activating the boost converter when current levels approach the threshold, before voltage drop becomes problematic. The threshold is set to trigger boost converter activation in advance of the point where voltage would drop below the radio's minimum operating requirement. This preliminary activation prevents radio malfunction while avoiding unnecessary operation at very low current levels.
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
Enhances DC power efficiency by selectively providing boosted voltage only when necessary, reducing power consumption and operational costs, while maintaining radio functionality and minimizing carbon footprint.
Implementation Method 1
A boost converter is configured to boost a DC voltage input of the boost converter to a higher DC voltage at an output of the boost converter
Implementation Method 2
a current sensor coupled to the output electrical conductors and configured to measure a direct current level drawn through the output electrical conductors
Data Source
AI summary
Techniques for enhancing a power efficiency of a direct current (DC) power delivery system is provided. The power delivery system may be configured to provide DC power to a radio. The power delivery system bypasses or does not bypass a DC voltage converter based upon whether DC power efficiency will be increased.