Series Voltage Circuit with DC/DC Isolation for Power Supply
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Solution Overview
Problem
Current methods for power supply in communication networks face inefficiencies and increased costs due to limited voltage compensation range and poor current averaging, especially when dealing with multiple power supply lines and varying power output from each line, leading to unfair power distribution and high energy loss.
Innovation Solution
The method involves connecting multiple input voltages in series and performing isolation voltage transformation to achieve a stable voltage for the electric load, using a series voltage circuit and an adjustable DC/DC isolation circuit to ensure efficient power distribution, reducing the need for multiple DC/DC converters and enhancing current averaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple power supplying ends are used to supply greater power to the same electric load, then the power supply capacity is improved, but the voltage difference between ports of the interface control module increases leading to greater loss and lower efficiency
Solution Approach 1:
The patent introduces a current averaging module as an intermediary component between the interface control module and the electric load. This module receives power from multiple power supplying ends and averages the current from each source before delivering it to the load, thereby reducing voltage differences and minimizing power loss while maintaining enhanced power supply capacity
Solution Approach 2:
The patent employs voltage compensation techniques that dynamically adjust voltage parameters at each input port based on the detected voltage differences. By changing voltage parameters in real-time, the system maintains optimal power transfer efficiency even when multiple power supplying ends with different voltage levels are connected
2Manufacturing precision
If a current averaging module is designed between the interface control module and the electric load to achieve current averaging, then the voltage difference compensation is improved, but the device complexity and cost increase
Solution Approach 1:
The patent combines the current averaging module with the existing interface control module into an integrated unit. By merging these functions, the system achieves current averaging and voltage compensation capabilities without adding separate standalone components, thereby reducing overall device complexity and cost while maintaining the required manufacturing precision
3Manufacturing precision
If each power supply line corresponds to a DC/DC voltage converter to achieve current averaging, then the current averaging effect is improved, but the cost greatly increases with the number of power supply lines
Solution Approach 1:
The patent designs a universal current averaging module that can handle multiple power supply lines simultaneously with a single unified circuit architecture. This multi-functional module replaces the need for individual DC/DC converters for each power line, achieving current averaging across all inputs while significantly reducing device complexity and cost as the system scales
4Device complexity
If voltage compensation is performed by non-DC/DC conversion methods such as LDO or series resistor, then the device complexity is reduced, but the voltage compensation range is limited and the current averaging effect is poor
Solution Approach 1:
The patent implements a dynamic current averaging module that actively adjusts its operation based on real-time detection of voltage differences and current levels from multiple power supplying ends. This dynamic adaptation enables the system to achieve wide voltage compensation range and superior current averaging effect while maintaining relatively simple device complexity through intelligent control rather than complex passive circuits
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 approach improves power supply efficiency, reduces heat energy consumption, and lowers the overall cost by maintaining constant voltage across the series connection, achieving fairness in power distribution and enhancing conversion efficiency.
Implementation Method 1
an adjustable DC/DC isolation circuit, to perform isolation voltage transformation on the serially connected input voltages according to rated power of the electric load
Data Source
AI summary
A communication network power supply method and apparatus. The method comprises: before supplying power to an electric load, at least two paths of input voltages being connected in series; and according to the rated power of the electric load, performing isolation transformation processing on the input voltages connected in series, so as to obtain a voltage required by the electric load.