Storage Device Charging Circuit With Series-Parallel Voltage Switching
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Solution Overview
Problem
Existing electrical storage device charging systems experience significant energy loss due to heat generated by charger circuits, which reduces efficiency and extends charging time.
Innovation Solution
An electrical storage device control system that switches the connection mode between electrical storage devices based on voltage differences, connecting them in series or parallel to minimize energy loss by optimizing charger circuit operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If electrical storage devices are charged with series connection, then charging voltage can be increased, but energy loss increases due to heat generation in charger circuits
Solution Approach 1:
The patent applies dynamics by making the connection mode (series or parallel) changeable based on real-time voltage conditions. The control unit dynamically switches between series connection mode for high voltage requirements and parallel connection mode for low energy loss, allowing the system to adapt to different charging scenarios and optimize both power delivery and energy efficiency.
Solution Approach 2:
The patent changes the connection configuration parameter (series vs. parallel) based on voltage difference thresholds. When the voltage difference between power supply and storage devices exceeds a threshold, series connection is used; otherwise, parallel connection is used. This parameter change enables the system to optimize charging efficiency by selecting the appropriate connection mode.
2Loss of energy
If electrical storage devices are charged with parallel connection, then energy loss is reduced, but charging voltage is limited
Solution Approach 1:
The system dynamically switches between parallel and series connection modes based on real-time voltage conditions. When the voltage difference is within an acceptable range, parallel connection is used to minimize energy loss. When higher voltage is needed, the system transitions to series connection, ensuring both energy efficiency and voltage requirements are met.
Solution Approach 2:
The connection configuration parameter is changed based on voltage difference thresholds. The control unit monitors the voltage difference and switches from parallel to series connection when the threshold is exceeded, enabling the system to achieve both low energy loss and sufficient charging voltage through parameter optimization.
3Device complexity
If fixed connection mode is used, then system complexity is reduced, but charging efficiency cannot be optimized
Solution Approach 1:
The patent introduces dynamic switching capability between series and parallel connection modes through a control unit. This dynamic adjustment allows the system to optimize charging efficiency by selecting the appropriate connection mode based on voltage conditions, while the switching mechanism itself adds minimal complexity compared to the performance gains achieved.
Solution Approach 2:
The system optimizes charging efficiency by changing the connection configuration parameter (series or parallel) based on voltage difference thresholds. This parameter optimization enables the system to achieve better charging performance without requiring complex additional hardware, as the switching logic is implemented through control unit software.
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 reduces energy loss and shortens charging time by dynamically adjusting the connection mode between series and parallel configurations, thereby enhancing charging efficiency.
Implementation Method 1
a first electrical storage device 31 and a second electrical storage device 32, which are connected together in series... respective voltages V1, V2 at the first electrical storage device 31 and the second electrical storage device 32
Data Source
AI summary
An electrical storage device control system includes a plurality of electrical storage devices and a plurality of charger circuits. The plurality of electrical storage devices are charged by a main power supply. The plurality of charger circuits are connected between the main power supply and the plurality of electrical storage devices. A mode of connection between the plurality of electrical storage devices being charged is switched to either a first connection mode or a second connection mode, depending on a voltage difference between an input voltage for the main power supply and a charging voltage based on respective voltages at the plurality of electrical storage devices. In the first connection mode, the plurality of electrical storage devices are connected together in series. In the second connection mode, the plurality of electrical storage devices are connected in parallel to the main power supply.