Multi-Mode Power Supply Control for Mixed-Load DC Distribution
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Solution Overview
Problem
Existing power supply systems that distribute DC power to multiple loads with different characteristics require multiple voltage conversion circuits and data tables, increasing costs and complexity.
Innovation Solution
A power supply system that includes a converter, detector, and controller, which adjusts the distribution voltage based on the operating state of the loads, using a controller to select between a distribution voltage control mode and a fixed mode to optimize power efficiency and reduce costs by minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple voltage conversion circuits and data tables are provided to handle multiple loads with different characteristics, then load efficiency is improved, but system cost increases
Solution Approach 1:
The patent implements a universal voltage conversion circuit that can serve multiple loads with different characteristics by dynamically adjusting its output voltage based on load type detection. Instead of having dedicated conversion circuits for each load type, a single circuit is designed to adapt its behavior through controller-based voltage regulation, achieving multi-functionality and reducing overall system complexity and cost.
Solution Approach 2:
The patent employs dynamic voltage adjustment where the conversion circuit's output voltage is not fixed but changes in real-time based on the detected load characteristics. The controller continuously monitors load type and adjusts the conversion ratio accordingly, enabling the system to optimize efficiency for different loads without requiring multiple static conversion circuits.
2Adaptability or versatility
If multiple voltage conversion circuits are provided for different loads, then power supply adaptability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal power supply adaptation mechanism where a single voltage conversion circuit can serve multiple load types through dynamic control. The controller detects load characteristics and adjusts conversion parameters in real-time, enabling one circuit to perform the functions that would traditionally require multiple dedicated circuits, thereby maintaining adaptability while reducing complexity.
Solution Approach 2:
The patent achieves adaptability by changing the operational parameters (output voltage, conversion ratio) of the voltage conversion circuit based on load characteristics. Instead of having fixed-parameter circuits for each load type, the system dynamically modifies parameters to match the requirements of different loads, providing versatile power supply adaptation through parameter adjustment rather than hardware multiplication.
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 system improves load efficiency and reduces costs by dynamically adjusting the distribution voltage, minimizing power consumption, and adapting to changes in load characteristics without the need for multiple conversion circuits or data tables.
Implementation Method 1
The converter converts AC power or DC power received from a main power source into power with a voltage in accordance with a voltage command value
Data Source
AI summary
A power supply system includes a power converter, a load state detector, and a controller. The power converter converts AC power received from the main power source into DC power with a voltage in accordance with a distribution voltage command value Vref and supplies the DC power to the load. The load state detector detects an operating state of the load. The controller operates in an operation mode selected from among a plurality of operation modes and generates the distribution voltage command value Vref. The operation modes include a distribution voltage control mode in which the distribution voltage command value Vref is generated based on load operating information detected by the load state detector and a distribution voltage fixed mode in which a predetermined setting value or an external command value acquired from an external device is set as the distribution voltage command value Vref.