Reconfigurable Three-Battery Power Module for Low-Loss Voltage Supply
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Solution Overview
Problem
Existing voltage converters in portable electronic devices cause excessive conversion losses, leading to reduced battery efficiency and shorter overall use time due to varying voltage requirements of functional modules.
Innovation Solution
A power module with three batteries and charging/discharging control units that determine the quantity of connected batteries based on load signals to supply different voltages, reducing the number of voltage conversions and optimizing power supply according to functional module needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple voltage converters are disposed on the portable electronic device to convert voltages for various functional modules, then different voltage requirements of functional modules are met, but conversion losses increase and battery efficiency decreases
Solution Approach 1:
The battery system is segmented into multiple independent battery units (first battery, second battery, third battery) that can be independently connected in series or parallel. This segmentation allows the power module to provide multiple voltage levels (e.g., 3.7V, 7.4V, 11.1V) without requiring voltage conversion, thereby reducing conversion losses while maintaining voltage adaptability for different functional modules
Solution Approach 2:
The power module achieves multi-functionality by using a single battery system that can operate in multiple configurations (series/parallel combinations). This universal battery system can directly supply different voltage levels to different functional modules, eliminating the need for multiple voltage converters and reducing energy loss
2Adaptability or versatility
If multiple voltage converters are used to meet varying voltage requirements, then functional modules receive appropriate voltages, but the overall use time of the battery is reduced
Solution Approach 1:
The power module dynamically reconfigures the battery connections based on the voltage requirements of different functional modules. The control unit adjusts the series/parallel configuration in real-time, allowing the system to adapt to varying power demands while minimizing energy conversion losses and maximizing battery use time
Solution Approach 2:
The invention extracts the voltage conversion function from separate voltage converter components and integrates it directly into the battery system through configurable series/parallel connections. This eliminates the need for intermediate conversion steps, reducing energy loss and extending battery operational time
Data Source
AI summary
A power module adapted to a computer system is provided in the disclosure. The power module includes three batteries, a first voltage output terminal, a second voltage output terminal, a third voltage output terminal, and a charging/discharging control unit. The charging/discharging control unit determines a quantity of serially connected batteries based on a load signal of the computer system, to supply a first voltage to the first voltage output terminal, a second voltage to the second voltage output terminal, or a third voltage to the third voltage output terminal. The first voltage, the second voltage, and the third voltage correspond to different quantities of batteries. The disclosure further provides a power supply method.