Modular Battery Power Supply with Switching Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing power supply devices have low versatility due to the need for redesigning components such as switching elements, step-up reactors, and cabinets whenever specifications like current capacity or output voltage change, making them inefficient for adapting to different requirements.
Innovation Solution
A power supply device with a control method that includes multiple battery circuit modules and a control circuit that adjusts the operation of switching elements and delays gate signals to achieve a desired output voltage, allowing for easy reconfiguration and reduced electrical losses by excluding defective modules and optimizing switching frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power supply device is designed with fixed components (switching element, step-up reactor, cabinet) according to specific current capacity and output voltage requirements, then the device can meet the specified electrical specifications, but the versatility is low and redesign is needed for every specification change
Solution Approach 1:
The power supply device is divided into multiple battery circuit modules, each capable of independent operation. By segmenting the system into modular units, the patent enables flexible reconfiguration to achieve different output voltages and current capacities without complete redesign. Each module can be independently selected and combined based on specification requirements.
Solution Approach 2:
The patent designs battery circuit modules with universal applicability that can serve multiple functions and specification requirements. The same basic module structure can be used across different power supply configurations by varying the number of modules and their connection arrangement, eliminating the need for specialized designs for each specification.
2Power
If a DC-DC converter is added to raise voltage, then the output voltage requirement can be met, but the device structure becomes more complex
Solution Approach 1:
The patent employs periodic switching action of switching elements within battery circuit modules to achieve voltage transformation. By periodically switching capacitors and inductors in specific sequences, the desired output voltage is obtained through pulsed operation rather than continuous DC-DC conversion, simplifying the overall structure.
Solution Approach 2:
The patent uses switching elements and energy storage components (capacitors and inductors) as intermediary elements to transfer and transform energy between battery modules. These intermediaries enable voltage raising functionality without requiring a separate DC-DC converter, integrating the function directly into the battery circuit modules.
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 enables a power supply device with high versatility, simplified structure, reduced size, and improved efficiency by allowing easy adjustment to desired output voltages and reducing switching losses, even when modules become defective.
Implementation Method 1
a power supply device used to drive the driving motor of a hybrid vehicle or electric vehicle raises the voltage of the battery using a step-up converter
Implementation Method 2
a capacitor C connected in parallel to the battery B
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
A power supply device includes battery circuit modules 10a, 10b, 10c,... each having a battery B, a first switching element S1 connected in parallel to the battery B, and a second switching element S2 connected in series to the battery Bbetween the battery B and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group 100 in which the battery circuit modules 10a, 10b, 10c,... are connected in series, and a control circuit 11 for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules 10a, 10b, 10c,...