Power Supply Control Device for Communication Network Current Equalization
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Solution Overview
Problem
Existing communication network-based power supply systems face inefficiencies due to voltage differences between power supply lines, leading to poor current equalization and higher heat loss, especially when multiple Power Sourcing Equipment (PSE) are used to supply power to the same electro-load.
Innovation Solution
A power supply control device and method that includes a monitoring module to detect and compare circuit data from multiple power supply circuits, calculate average values, and adjust output voltages using voltage-adjustable DC/DC modules to equalize currents, thereby widening the voltage compensation range and improving conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple PSE are used to supply power to the same electro-load, then higher power supply capability is achieved, but voltage differences between ports cause poor current equalization and higher loss
Solution Approach 1:
The patent implements a feedback mechanism where the monitoring module continuously detects circuit data from multiple power supply circuits, compares the data, calculates average values, and adjusts output voltages through voltage-adjustable DC/DC modules. This closed-loop feedback system dynamically compensates for voltage differences between ports, ensuring optimal current equalization and minimizing energy loss while maintaining high power supply capability.
2Reliability
If non-DC/DC conversion is performed on voltage of each input port, then voltage compensation is provided, but the compensation range is limited and current equalization effect is poor
Solution Approach 1:
The patent employs voltage-adjustable DC/DC modules that can dynamically change voltage parameters beyond the limitations of non-DC/DC conversion methods. These modules adjust output voltages based on real-time circuit data from the monitoring module, significantly expanding the voltage compensation range and improving current equalization effectiveness across varying load conditions and power supply configurations.
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 effectively reduces system heat loss, enhances current equalization efficiency, and allows for wider application scenarios by providing more electric energy while adapting to dynamic load changes.
Implementation Method 1
each piece of voltage-adjustable DC/DC module adjusts output voltage according to the required output circuit data of each circuit
Data Source
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AI summary
A power supply control device for a communication network includes: a monitoring module (11) and N voltage-adjustable Direct Current/Direct Current (DC/DC) modules (121, 122......12N). The monitoring module is configured to detect circuit data of each of power supply circuits (1,2,......i), compare the circuit data with each other, calculate an average value, analyse required output circuit data of each of the power supply circuits, and transmit the required output circuit data of the power supply circuits to respective the voltage-adjustable DC/DC modules. The voltage-adjustable DC/DC modules are configured to receive the required output circuit data of the power supply circuits, and adjust output voltages of the power supply circuits according to the output circuit data. Output ends of all of the voltage-adjustable DC/DC modules are connected in parallel to supply power to a subordinate electro-load. Also disclosed is a power supply control method for the communication network.