Battery Cell Converter Layout for Lower Voltage Loss
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Solution Overview
Problem
The electrical energy utilization efficiency of power supply solutions in electronic devices such as laptops is relatively low, leading to reduced battery life.
Innovation Solution
A power supply circuit is designed with a battery module comprising multiple battery cells connected in series and parallel configurations, utilizing voltage converters to minimize the voltage difference across converter terminals, thereby improving efficiency and reducing voltage losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the input terminal of the second voltage converter is connected to the positive electrode of the first battery cell, then the voltage difference across the second voltage converter is larger, but the working efficiency of the second voltage converter decreases and voltage losses increase
Solution Approach 1:
The battery module is divided into multiple power supply branches with multiple battery cells each, allowing selective connection of voltage converters to different battery cells. This segmentation enables the second voltage converter to be connected to the positive electrode of the second battery cell rather than the first, reducing voltage difference and improving efficiency without requiring complete system redesign
Solution Approach 2:
Different connection configurations are applied to different voltage converters based on their specific requirements. The first voltage converter connects to the first battery cell while the second voltage converter connects to the second battery cell, optimizing each converter's operating conditions locally rather than using a uniform connection scheme
2Productivity
If the voltage difference across the voltage converter terminals is reduced, then the working efficiency improves, but the circuit connection configuration becomes more specific and constrained
Solution Approach 1:
The power supply circuit supports dynamic switching between different connection configurations. Switches enable the system to adaptively select which battery cell connects to which voltage converter based on real-time operating conditions, maintaining high efficiency while preserving flexibility for different operational scenarios
Solution Approach 2:
The power supply circuit design accommodates multiple connection configurations and operational modes within a single system. The same circuit architecture can operate with different battery cell-to-converter pairings, making the system universally adaptable to various operating conditions while maintaining optimized efficiency
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 solution enhances the working efficiency of voltage converters, reduces voltage losses, and extends the battery life of electronic devices by optimizing energy utilization.
Implementation Method 1
the first voltage converter is configured to convert the first battery voltage into a first operating voltage, and the second voltage converter is configured to convert the second battery voltage into a second operating voltage
Data Source
AI summary
A power supply circuit and an electronic device. The power supply circuit includes: a battery module, where the battery module includes at least one power supply branch, each power supply branch includes a first battery cell and a second battery cell, and a negative electrode of the first battery cell in each power supply branch is connected to a positive electrode of the second battery cell; a first voltage converter, where an input terminal thereof is connected to a positive electrode of the first battery cell, an output terminal thereof is connected to a first load; and a second voltage converter, where an input terminal thereof is connected to the positive electrode of the second battery cell, an output terminal thereof is connected to a second load.